./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 0.1.24-678e011 [2019-11-20 04:10:54,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:10:54,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:10:54,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:10:54,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:10:54,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:10:54,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:10:54,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:10:54,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:10:54,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:10:54,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:10:54,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:10:54,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:10:54,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:10:54,256 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:10:54,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:10:54,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:10:54,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:10:54,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:10:54,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:10:54,267 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:10:54,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:10:54,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:10:54,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:10:54,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:10:54,277 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:10:54,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:10:54,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:10:54,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:10:54,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:10:54,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:10:54,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:10:54,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:10:54,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:10:54,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:10:54,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:10:54,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:10:54,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:10:54,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:10:54,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:10:54,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:10:54,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 04:10:54,316 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:10:54,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:10:54,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:10:54,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:10:54,328 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:10:54,328 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 04:10:54,328 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 04:10:54,329 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 04:10:54,329 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 04:10:54,329 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 04:10:54,329 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 04:10:54,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:10:54,330 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:10:54,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 04:10:54,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:10:54,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:10:54,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:10:54,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 04:10:54,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 04:10:54,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 04:10:54,332 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:10:54,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:10:54,335 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 04:10:54,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:10:54,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 04:10:54,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:10:54,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:10:54,336 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 04:10:54,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:10:54,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:10:54,337 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 04:10:54,338 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 04:10:54,339 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_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:10:54,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:10:54,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:10:54,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:10:54,488 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:10:54,488 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:10:54,489 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2019-11-20 04:10:54,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/data/7f6af8441/64c3122efd3943cab185b8dd07132577/FLAG3b95e1c51 [2019-11-20 04:10:55,032 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:10:55,032 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2019-11-20 04:10:55,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/data/7f6af8441/64c3122efd3943cab185b8dd07132577/FLAG3b95e1c51 [2019-11-20 04:10:55,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/data/7f6af8441/64c3122efd3943cab185b8dd07132577 [2019-11-20 04:10:55,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:10:55,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:10:55,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:10:55,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:10:55,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:10:55,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:10:55" (1/1) ... [2019-11-20 04:10:55,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea86b8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:55, skipping insertion in model container [2019-11-20 04:10:55,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:10:55" (1/1) ... [2019-11-20 04:10:55,577 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:10:55,622 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:10:55,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:10:55,953 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:10:55,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:10:56,037 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:10:56,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56 WrapperNode [2019-11-20 04:10:56,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:10:56,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:10:56,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:10:56,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:10:56,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:10:56,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:10:56,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:10:56,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:10:56,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... [2019-11-20 04:10:56,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:10:56,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:10:56,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:10:56,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:10:56,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:10:56,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:10:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:10:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:10:56,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:10:56,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:10:56,563 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:10:56,563 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 04:10:56,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:10:56 BoogieIcfgContainer [2019-11-20 04:10:56,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:10:56,565 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 04:10:56,565 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 04:10:56,568 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 04:10:56,569 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:10:56,569 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 04:10:55" (1/3) ... [2019-11-20 04:10:56,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d4e5c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:10:56, skipping insertion in model container [2019-11-20 04:10:56,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:10:56,570 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:10:56" (2/3) ... [2019-11-20 04:10:56,570 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d4e5c11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 04:10:56, skipping insertion in model container [2019-11-20 04:10:56,570 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 04:10:56,571 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:10:56" (3/3) ... [2019-11-20 04:10:56,572 INFO L371 chiAutomizerObserver]: Analyzing ICFG substring-alloca-2.i [2019-11-20 04:10:56,613 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 04:10:56,614 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 04:10:56,614 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 04:10:56,614 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:10:56,614 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:10:56,614 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 04:10:56,614 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:10:56,615 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 04:10:56,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2019-11-20 04:10:56,649 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-11-20 04:10:56,653 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:10:56,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:10:56,660 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 04:10:56,660 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 04:10:56,660 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 04:10:56,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states. [2019-11-20 04:10:56,667 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2019-11-20 04:10:56,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:10:56,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:10:56,668 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 04:10:56,668 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 04:10:56,676 INFO L794 eck$LassoCheckResult]: Stem: 17#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 15#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 16#L532true assume !(main_~length1~0 < 1); 18#L532-2true assume !(main_~length2~0 < 1); 11#L535-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 24#L541-3true [2019-11-20 04:10:56,676 INFO L796 eck$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 [2019-11-20 04:10:56,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:56,683 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-20 04:10:56,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:56,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752723709] [2019-11-20 04:10:56,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:56,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:10:56,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:56,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-11-20 04:10:56,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:56,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517511914] [2019-11-20 04:10:56,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:56,816 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:10:56,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:56,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-11-20 04:10:56,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:56,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229058657] [2019-11-20 04:10:56,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:56,863 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:10:57,232 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-20 04:10:57,344 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-11-20 04:10:57,357 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:10:57,357 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:10:57,357 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:10:57,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:10:57,358 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:10:57,358 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:57,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:10:57,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:10:57,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration1_Lasso [2019-11-20 04:10:57,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:10:57,359 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:10:57,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:57,920 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:10:57,926 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:57,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:57,937 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:57,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:57,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:57,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:57,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:57,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:57,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:57,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:57,962 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:57,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:57,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:57,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:57,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:57,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:57,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:57,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:57,971 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:57,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:57,993 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:57,993 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:57,993 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:57,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:57,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:57,995 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:57,995 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:57,997 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:58,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:58,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:10:58,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,073 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,073 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,081 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:10:58,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:58,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,099 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:58,099 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:10:58,102 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,117 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,119 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,120 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:10:58,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:58,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:58,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:10:58,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,170 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,170 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,174 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,190 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,191 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,197 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:10:58,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,212 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:10:58,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,252 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:58,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,267 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:58,267 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:10:58,269 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,277 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,289 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 [2019-11-20 04:10:58,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:58,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:58,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:10:58,361 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:10:58,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:58,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:58,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:58,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:58,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:58,387 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:58,387 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:10:58,401 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:10:58,446 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2019-11-20 04:10:58,446 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_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:58,542 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:58,546 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:10:58,546 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:10:58,547 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 [] [2019-11-20 04:10:58,589 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-20 04:10:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:10:58,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:10:58,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:10:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:10:58,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:10:58,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:10:58,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:10:58,710 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 04:10:58,711 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states. Second operand 3 states. [2019-11-20 04:10:58,764 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. [2019-11-20 04:10:58,765 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 [2019-11-20 04:10:58,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 04:10:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2019-11-20 04:10:58,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 04:10:58,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:10:58,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 04:10:58,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:10:58,769 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 04:10:58,769 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:10:58,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 84 transitions. [2019-11-20 04:10:58,774 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 04:10:58,777 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 19 states and 26 transitions. [2019-11-20 04:10:58,778 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 04:10:58,778 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-20 04:10:58,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2019-11-20 04:10:58,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:10:58,779 INFO L688 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-20 04:10:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2019-11-20 04:10:58,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-20 04:10:58,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-20 04:10:58,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-11-20 04:10:58,799 INFO L711 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-20 04:10:58,799 INFO L591 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-11-20 04:10:58,800 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 04:10:58,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2019-11-20 04:10:58,801 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2019-11-20 04:10:58,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:10:58,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:10:58,801 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:10:58,801 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 04:10:58,801 INFO L794 eck$LassoCheckResult]: Stem: 167#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 164#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 165#L532 assume !(main_~length1~0 < 1); 166#L532-2 assume !(main_~length2~0 < 1); 161#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 162#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 154#L541-4 main_~i~1 := 0; 155#L547-3 [2019-11-20 04:10:58,802 INFO L796 eck$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 [2019-11-20 04:10:58,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:58,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2019-11-20 04:10:58,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:58,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961043985] [2019-11-20 04:10:58,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:58,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:58,825 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:10:58,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:58,825 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2019-11-20 04:10:58,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:58,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203648394] [2019-11-20 04:10:58,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:58,837 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:10:58,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:58,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2019-11-20 04:10:58,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:58,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605236402] [2019-11-20 04:10:58,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:58,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:10:59,056 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-11-20 04:10:59,127 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:10:59,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:10:59,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:10:59,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:10:59,128 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:10:59,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:10:59,128 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:10:59,128 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration2_Lasso [2019-11-20 04:10:59,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:10:59,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:10:59,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:10:59,630 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:10:59,630 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,637 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:59,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,638 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:59,638 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:10:59,640 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,656 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:59,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,674 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:59,675 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:59,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,700 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:59,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:59,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,724 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:59,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:10:59,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:10:59,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:10:59,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:10:59,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:10:59,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:10:59,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:10:59,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:10:59,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:10:59,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,779 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:10:59,812 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-20 04:10:59,812 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_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:10:59,815 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:10:59,818 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:10:59,818 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:10:59,818 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 [] [2019-11-20 04:10:59,841 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-11-20 04:10:59,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:10:59,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 04:10:59,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:10:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:10:59,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:10:59,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:10:59,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:10:59,899 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-20 04:10:59,899 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-20 04:10:59,923 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. [2019-11-20 04:10:59,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 04:10:59,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 04:10:59,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-20 04:10:59,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 04:10:59,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:10:59,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 9 letters. Loop has 2 letters. [2019-11-20 04:10:59,927 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:10:59,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-20 04:10:59,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:10:59,928 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 42 transitions. [2019-11-20 04:10:59,929 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 04:10:59,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 28 transitions. [2019-11-20 04:10:59,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 04:10:59,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 04:10:59,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2019-11-20 04:10:59,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:10:59,931 INFO L688 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-20 04:10:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2019-11-20 04:10:59,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-20 04:10:59,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 04:10:59,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2019-11-20 04:10:59,935 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-20 04:10:59,935 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-20 04:10:59,935 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 04:10:59,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2019-11-20 04:10:59,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 04:10:59,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:10:59,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:10:59,941 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:10:59,941 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:10:59,941 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 [2019-11-20 04:10:59,942 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~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 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 [2019-11-20 04:10:59,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:10:59,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2019-11-20 04:10:59,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:10:59,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797692004] [2019-11-20 04:10:59,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:10:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:10:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,015 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:00,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 1 times [2019-11-20 04:11:00,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:00,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155596067] [2019-11-20 04:11:00,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,050 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:00,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:00,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1515359350, now seen corresponding path program 1 times [2019-11-20 04:11:00,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:00,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676884133] [2019-11-20 04:11:00,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:00,274 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676884133] [2019-11-20 04:11:00,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:11:00,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 04:11:00,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560763525] [2019-11-20 04:11:00,462 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-11-20 04:11:00,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:00,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:11:00,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:11:00,518 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. cyclomatic complexity: 11 Second operand 7 states. [2019-11-20 04:11:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:00,603 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2019-11-20 04:11:00,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 04:11:00,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2019-11-20 04:11:00,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 04:11:00,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 28 transitions. [2019-11-20 04:11:00,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 04:11:00,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 04:11:00,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2019-11-20 04:11:00,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:11:00,606 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-11-20 04:11:00,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2019-11-20 04:11:00,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-11-20 04:11:00,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 04:11:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2019-11-20 04:11:00,608 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-20 04:11:00,608 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2019-11-20 04:11:00,608 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 04:11:00,608 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2019-11-20 04:11:00,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 04:11:00,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:00,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:00,610 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:00,610 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:00,610 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 [2019-11-20 04:11:00,610 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~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 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 [2019-11-20 04:11:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:00,610 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2019-11-20 04:11:00,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:00,611 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650964901] [2019-11-20 04:11:00,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,648 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:00,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:00,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 2 times [2019-11-20 04:11:00,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:00,665 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900004184] [2019-11-20 04:11:00,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:00,684 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:00,685 INFO L82 PathProgramCache]: Analyzing trace with hash 2020169960, now seen corresponding path program 1 times [2019-11-20 04:11:00,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:00,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135426476] [2019-11-20 04:11:00,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:00,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 04:11:00,859 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135426476] [2019-11-20 04:11:00,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:11:00,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 04:11:00,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476950071] [2019-11-20 04:11:01,002 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-11-20 04:11:01,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:01,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:11:01,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:11:01,043 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand 9 states. [2019-11-20 04:11:01,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:01,214 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2019-11-20 04:11:01,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:11:01,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2019-11-20 04:11:01,215 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-11-20 04:11:01,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 32 states and 42 transitions. [2019-11-20 04:11:01,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2019-11-20 04:11:01,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2019-11-20 04:11:01,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 42 transitions. [2019-11-20 04:11:01,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:11:01,217 INFO L688 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-11-20 04:11:01,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 42 transitions. [2019-11-20 04:11:01,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2019-11-20 04:11:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 04:11:01,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2019-11-20 04:11:01,220 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2019-11-20 04:11:01,220 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2019-11-20 04:11:01,220 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 04:11:01,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2019-11-20 04:11:01,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2019-11-20 04:11:01,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:01,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:01,222 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:01,222 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:01,222 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 [2019-11-20 04:11:01,222 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~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 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 [2019-11-20 04:11:01,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:01,222 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2019-11-20 04:11:01,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:01,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028333066] [2019-11-20 04:11:01,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:01,267 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:01,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:01,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1312710103, now seen corresponding path program 1 times [2019-11-20 04:11:01,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:01,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315387332] [2019-11-20 04:11:01,270 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:01,299 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:01,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:01,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1844492576, now seen corresponding path program 1 times [2019-11-20 04:11:01,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:01,300 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038336336] [2019-11-20 04:11:01,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:01,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 04:11:01,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038336336] [2019-11-20 04:11:01,381 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676321421] [2019-11-20 04:11:01,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:01,453 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 04:11:01,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:01,501 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:01,501 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 [2019-11-20 04:11:01,502 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:01,521 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 04:11:01,522 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:01,522 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:9, output treesize:5 [2019-11-20 04:11:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 04:11:01,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:11:01,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2019-11-20 04:11:01,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786229760] [2019-11-20 04:11:01,906 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-11-20 04:11:01,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:01,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:11:01,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2019-11-20 04:11:01,962 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. cyclomatic complexity: 14 Second operand 9 states. [2019-11-20 04:11:02,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:02,100 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2019-11-20 04:11:02,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:11:02,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2019-11-20 04:11:02,102 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 04:11:02,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 27 transitions. [2019-11-20 04:11:02,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 04:11:02,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 04:11:02,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2019-11-20 04:11:02,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:11:02,103 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2019-11-20 04:11:02,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2019-11-20 04:11:02,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2019-11-20 04:11:02,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 04:11:02,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2019-11-20 04:11:02,105 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-20 04:11:02,105 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2019-11-20 04:11:02,105 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 04:11:02,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2019-11-20 04:11:02,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2019-11-20 04:11:02,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:02,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:02,106 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:02,106 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:02,107 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 [2019-11-20 04:11:02,107 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~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 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 [2019-11-20 04:11:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:02,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2019-11-20 04:11:02,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:02,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873730117] [2019-11-20 04:11:02,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:02,145 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:02,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:02,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 3 times [2019-11-20 04:11:02,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:02,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427319374] [2019-11-20 04:11:02,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:02,165 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:02,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:02,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1498710394, now seen corresponding path program 1 times [2019-11-20 04:11:02,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:02,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362446562] [2019-11-20 04:11:02,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:02,198 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:02,337 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-11-20 04:11:02,790 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 112 [2019-11-20 04:11:02,908 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-11-20 04:11:02,910 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:11:02,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:11:02,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:11:02,910 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:11:02,910 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:11:02,910 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:02,910 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:11:02,910 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:11:02,910 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration6_Lasso [2019-11-20 04:11:02,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:11:02,910 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:11:02,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,922 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:02,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,407 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-11-20 04:11:03,551 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-11-20 04:11:03,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:03,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:04,150 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:11:04,150 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,166 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,167 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,171 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,175 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,178 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,178 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,197 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,198 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,198 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,198 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,199 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,218 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 [2019-11-20 04:11:04,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,237 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,239 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,239 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,246 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,264 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,267 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,269 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,277 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,277 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,287 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-11-20 04:11:04,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,342 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2019-11-20 04:11:04,342 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-11-20 04:11:04,449 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:11:04,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:04,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:04,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:04,476 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:04,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,497 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,520 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,541 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:04,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,559 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,559 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,570 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,570 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,573 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:04,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:04,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:04,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:04,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:04,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:04,591 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:04,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:04,612 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:11:04,665 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2019-11-20 04:11:04,665 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_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:04,673 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:11:04,675 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 04:11:04,675 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:11:04,675 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps~0.offset, ULTIMATE.start_main_~length1~0) = -1*ULTIMATE.start_substring_~ps~0.offset + 1*ULTIMATE.start_main_~length1~0 Supporting invariants [1*ULTIMATE.start_main_~length1~0 - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 >= 0] [2019-11-20 04:11:04,724 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2019-11-20 04:11:04,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:04,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 04:11:04,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:04,770 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_88|], 1=[|v_#valid_120|]} [2019-11-20 04:11:04,773 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:04,774 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 [2019-11-20 04:11:04,774 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:04,782 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:04,787 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 [2019-11-20 04:11:04,787 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:04,794 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:04,795 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:04,795 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:22, output treesize:10 [2019-11-20 04:11:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:04,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 04:11:04,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:04,839 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 04:11:04,839 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand 4 states. [2019-11-20 04:11:04,885 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 27 states and 36 transitions. Complement of second has 5 states. [2019-11-20 04:11:04,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 04:11:04,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 04:11:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-20 04:11:04,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 13 letters. Loop has 7 letters. [2019-11-20 04:11:04,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:04,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 20 letters. Loop has 7 letters. [2019-11-20 04:11:04,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:04,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 13 letters. Loop has 14 letters. [2019-11-20 04:11:04,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:04,888 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2019-11-20 04:11:04,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:04,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 34 transitions. [2019-11-20 04:11:04,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 04:11:04,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 04:11:04,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2019-11-20 04:11:04,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:04,890 INFO L688 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-11-20 04:11:04,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2019-11-20 04:11:04,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-20 04:11:04,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 04:11:04,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-11-20 04:11:04,892 INFO L711 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-11-20 04:11:04,892 INFO L591 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-11-20 04:11:04,892 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 04:11:04,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2019-11-20 04:11:04,892 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:04,893 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:04,893 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:04,893 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:04,893 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:04,893 INFO L794 eck$LassoCheckResult]: Stem: 782#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 779#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; 780#L532 assume !(main_~length1~0 < 1); 781#L532-2 assume !(main_~length2~0 < 1); 776#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; 777#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; 785#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 786#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 766#L541-4 main_~i~1 := 0; 767#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; 774#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 775#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 778#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; 770#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 762#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; 763#L520-5 [2019-11-20 04:11:04,894 INFO L796 eck$LassoCheckResult]: Loop: 763#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 768#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; 783#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 763#L520-5 [2019-11-20 04:11:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:04,894 INFO L82 PathProgramCache]: Analyzing trace with hash 2055034719, now seen corresponding path program 1 times [2019-11-20 04:11:04,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:04,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283102067] [2019-11-20 04:11:04,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:04,913 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:04,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:04,913 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 1 times [2019-11-20 04:11:04,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:04,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124587511] [2019-11-20 04:11:04,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:04,920 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:04,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:04,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1075534243, now seen corresponding path program 1 times [2019-11-20 04:11:04,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:04,921 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882405224] [2019-11-20 04:11:04,921 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:04,942 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:05,631 WARN L191 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 130 [2019-11-20 04:11:05,837 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-20 04:11:05,839 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:11:05,839 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:11:05,839 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:11:05,839 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:11:05,839 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:11:05,839 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:05,840 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:11:05,840 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:11:05,840 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration7_Lasso [2019-11-20 04:11:05,840 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:11:05,840 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:11:05,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,853 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,855 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:05,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 04:11:06,429 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2019-11-20 04:11:06,641 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-11-20 04:11:06,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:06,935 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-11-20 04:11:07,381 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:11:07,381 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:07,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:07,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:07,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,410 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 [2019-11-20 04:11:07,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:07,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,417 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 [2019-11-20 04:11:07,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,418 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,419 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,419 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:07,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,424 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 [2019-11-20 04:11:07,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:07,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:11:07,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:11:07,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,472 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,472 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,474 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,474 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,518 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,533 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:07,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:07,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,582 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 [2019-11-20 04:11:07,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,585 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,585 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,589 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,598 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,598 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,607 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 [2019-11-20 04:11:07,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,610 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:07,613 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:07,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,656 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,656 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,656 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,658 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,659 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,665 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,676 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 [2019-11-20 04:11:07,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:07,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:07,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:07,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:07,693 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:07,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,725 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:11:07,930 INFO L443 ModelExtractionUtils]: Simplification made 50 calls to the SMT solver. [2019-11-20 04:11:07,930 INFO L444 ModelExtractionUtils]: 9 out of 61 variables were initially zero. Simplification set additionally 49 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:07,938 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:07,941 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:11:07,942 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:11:07,942 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2, ULTIMATE.start_substring_~pt~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_2 - 1*ULTIMATE.start_substring_~pt~0.offset Supporting invariants [] [2019-11-20 04:11:08,067 INFO L297 tatePredicateManager]: 30 out of 32 supporting invariants were superfluous and have been removed [2019-11-20 04:11:08,072 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 04:11:08,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:08,119 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:11:08,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:08,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 04:11:08,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:08,175 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 [2019-11-20 04:11:08,175 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 13 Second operand 5 states. [2019-11-20 04:11:08,236 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 13. Second operand 5 states. Result 48 states and 64 transitions. Complement of second has 7 states. [2019-11-20 04:11:08,237 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 [2019-11-20 04:11:08,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 04:11:08,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-11-20 04:11:08,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-20 04:11:08,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:08,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 18 letters. Loop has 3 letters. [2019-11-20 04:11:08,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:08,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-20 04:11:08,239 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:08,239 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 64 transitions. [2019-11-20 04:11:08,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:08,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 36 states and 48 transitions. [2019-11-20 04:11:08,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 04:11:08,241 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 04:11:08,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 48 transitions. [2019-11-20 04:11:08,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:08,241 INFO L688 BuchiCegarLoop]: Abstraction has 36 states and 48 transitions. [2019-11-20 04:11:08,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 48 transitions. [2019-11-20 04:11:08,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2019-11-20 04:11:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 04:11:08,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2019-11-20 04:11:08,243 INFO L711 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-20 04:11:08,243 INFO L591 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-20 04:11:08,243 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 04:11:08,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2019-11-20 04:11:08,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:08,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:08,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:08,249 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] [2019-11-20 04:11:08,250 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:08,250 INFO L794 eck$LassoCheckResult]: Stem: 1070#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1067#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; 1068#L532 assume !(main_~length1~0 < 1); 1069#L532-2 assume !(main_~length2~0 < 1); 1064#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; 1065#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; 1074#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1075#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1053#L541-4 main_~i~1 := 0; 1054#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; 1062#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1063#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1066#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; 1059#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1060#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; 1077#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1072#L520-1 assume !substring_#t~short6; 1073#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 1057#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1058#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; 1061#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1049#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; 1050#L520-5 [2019-11-20 04:11:08,250 INFO L796 eck$LassoCheckResult]: Loop: 1050#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1055#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; 1071#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 1050#L520-5 [2019-11-20 04:11:08,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:08,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1389384631, now seen corresponding path program 1 times [2019-11-20 04:11:08,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:08,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220751935] [2019-11-20 04:11:08,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:08,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 04:11:08,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220751935] [2019-11-20 04:11:08,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:11:08,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 04:11:08,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375775229] [2019-11-20 04:11:08,290 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 04:11:08,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:08,290 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 2 times [2019-11-20 04:11:08,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:08,291 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956177332] [2019-11-20 04:11:08,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:08,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:08,296 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:08,402 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 04:11:08,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:08,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 04:11:08,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 04:11:08,426 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. cyclomatic complexity: 16 Second operand 5 states. [2019-11-20 04:11:08,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:08,460 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2019-11-20 04:11:08,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 04:11:08,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2019-11-20 04:11:08,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 04:11:08,462 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 34 states and 44 transitions. [2019-11-20 04:11:08,462 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 04:11:08,462 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2019-11-20 04:11:08,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 44 transitions. [2019-11-20 04:11:08,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:08,463 INFO L688 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-11-20 04:11:08,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 44 transitions. [2019-11-20 04:11:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-11-20 04:11:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 04:11:08,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2019-11-20 04:11:08,465 INFO L711 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-11-20 04:11:08,465 INFO L591 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-11-20 04:11:08,465 INFO L424 BuchiCegarLoop]: ======== Iteration 9============ [2019-11-20 04:11:08,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2019-11-20 04:11:08,466 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:08,466 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:08,466 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:08,467 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] [2019-11-20 04:11:08,467 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:08,467 INFO L794 eck$LassoCheckResult]: Stem: 1148#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1145#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; 1146#L532 assume !(main_~length1~0 < 1); 1147#L532-2 assume !(main_~length2~0 < 1); 1142#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; 1143#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; 1152#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1153#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1131#L541-4 main_~i~1 := 0; 1132#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; 1140#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1141#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1144#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; 1135#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1136#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; 1157#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1156#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; 1155#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 1138#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1139#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; 1137#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1127#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; 1128#L520-5 [2019-11-20 04:11:08,467 INFO L796 eck$LassoCheckResult]: Loop: 1128#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1133#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; 1149#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 1128#L520-5 [2019-11-20 04:11:08,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:08,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1446642933, now seen corresponding path program 2 times [2019-11-20 04:11:08,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:08,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496096700] [2019-11-20 04:11:08,468 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:08,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 04:11:08,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496096700] [2019-11-20 04:11:08,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979904603] [2019-11-20 04:11:08,685 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:11:08,735 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:11:08,735 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:11:08,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-20 04:11:08,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:08,743 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 [2019-11-20 04:11:08,743 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:08,746 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:08,747 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:08,747 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:8 [2019-11-20 04:11:08,822 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 [2019-11-20 04:11:08,822 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:08,831 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:08,832 INFO L496 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. [2019-11-20 04:11:08,833 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:47, output treesize:31 [2019-11-20 04:11:08,942 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:08,943 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 [2019-11-20 04:11:08,943 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-20 04:11:08,958 INFO L567 ElimStorePlain]: treesize reduction 8, result has 63.6 percent of original size [2019-11-20 04:11:08,959 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:08,959 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:38, output treesize:3 [2019-11-20 04:11:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 04:11:08,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:11:08,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-20 04:11:08,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731211959] [2019-11-20 04:11:08,985 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 04:11:08,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:08,986 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 3 times [2019-11-20 04:11:08,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:08,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848892433] [2019-11-20 04:11:08,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:08,992 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:09,102 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 04:11:09,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:09,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-20 04:11:09,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-11-20 04:11:09,131 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. cyclomatic complexity: 15 Second operand 16 states. [2019-11-20 04:11:09,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:09,514 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2019-11-20 04:11:09,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:11:09,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2019-11-20 04:11:09,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:09,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 35 states and 45 transitions. [2019-11-20 04:11:09,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 04:11:09,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 04:11:09,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 45 transitions. [2019-11-20 04:11:09,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:09,517 INFO L688 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2019-11-20 04:11:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 45 transitions. [2019-11-20 04:11:09,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-11-20 04:11:09,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 04:11:09,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-11-20 04:11:09,519 INFO L711 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-11-20 04:11:09,519 INFO L591 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-11-20 04:11:09,519 INFO L424 BuchiCegarLoop]: ======== Iteration 10============ [2019-11-20 04:11:09,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 44 transitions. [2019-11-20 04:11:09,520 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:09,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:09,520 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:09,521 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, 1] [2019-11-20 04:11:09,521 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:09,521 INFO L794 eck$LassoCheckResult]: Stem: 1329#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1326#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; 1327#L532 assume !(main_~length1~0 < 1); 1328#L532-2 assume !(main_~length2~0 < 1); 1323#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; 1324#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; 1332#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1333#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; 1334#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1335#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1311#L541-4 main_~i~1 := 0; 1312#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; 1321#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1322#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1325#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; 1318#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1309#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; 1310#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1314#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; 1336#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 1316#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1317#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; 1319#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1307#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; 1308#L520-5 [2019-11-20 04:11:09,521 INFO L796 eck$LassoCheckResult]: Loop: 1308#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1313#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; 1330#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 1308#L520-5 [2019-11-20 04:11:09,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:09,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1546919447, now seen corresponding path program 3 times [2019-11-20 04:11:09,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:09,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195630234] [2019-11-20 04:11:09,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:09,547 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:09,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:09,547 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 4 times [2019-11-20 04:11:09,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:09,547 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948603327] [2019-11-20 04:11:09,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:09,553 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:09,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:09,553 INFO L82 PathProgramCache]: Analyzing trace with hash 721898201, now seen corresponding path program 1 times [2019-11-20 04:11:09,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:09,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864406152] [2019-11-20 04:11:09,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:09,584 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:09,707 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 04:11:10,862 WARN L191 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 236 DAG size of output: 177 [2019-11-20 04:11:11,105 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-11-20 04:11:11,107 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:11:11,107 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:11:11,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:11:11,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:11:11,107 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:11:11,108 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:11,108 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:11:11,108 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:11:11,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration10_Lasso [2019-11-20 04:11:11,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:11:11,108 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:11:11,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:11,774 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 109 [2019-11-20 04:11:11,995 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-11-20 04:11:11,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:12,969 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-11-20 04:11:13,246 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:11:13,247 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,252 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,253 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,265 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,274 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 [2019-11-20 04:11:13,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,277 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,283 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:13,285 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,290 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,291 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,297 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,301 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 [2019-11-20 04:11:13,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,304 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,304 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:13,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,315 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 [2019-11-20 04:11:13,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,323 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,328 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 [2019-11-20 04:11:13,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,330 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,330 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,331 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:13,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,345 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,350 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,360 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,365 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 [2019-11-20 04:11:13,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:13,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:13,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:13,368 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,375 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,377 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:13,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:13,385 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,387 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2019-11-20 04:11:13,387 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 04:11:13,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,429 INFO L401 nArgumentSynthesizer]: We have 60 Motzkin's Theorem applications. [2019-11-20 04:11:13,430 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 04:11:13,498 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:13,504 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,507 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,507 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:13,522 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 [2019-11-20 04:11:13,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,527 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,533 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:13,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,551 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,567 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:13,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,576 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,576 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:13,585 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:13,587 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:13,588 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:13,588 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:13,588 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:13,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:13,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,637 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:11:13,716 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2019-11-20 04:11:13,716 INFO L444 ModelExtractionUtils]: 17 out of 55 variables were initially zero. Simplification set additionally 32 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/bin/uautomizer/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 04:11:13,720 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:13,723 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 04:11:13,723 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:11:13,723 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3) = -2*ULTIMATE.start_substring_~ps2~0.offset + 3*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3 Supporting invariants [-2*ULTIMATE.start_substring_~ps2~0.offset + 3*ULTIMATE.start_substring_~pt~0.offset + 2 >= 0] [2019-11-20 04:11:14,009 INFO L297 tatePredicateManager]: 48 out of 51 supporting invariants were superfluous and have been removed [2019-11-20 04:11:14,016 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 04:11:14,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:14,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 04:11:14,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:14,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 04:11:14,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:14,149 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 [2019-11-20 04:11:14,149 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15 Second operand 6 states. [2019-11-20 04:11:14,274 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 48 states and 60 transitions. Complement of second has 7 states. [2019-11-20 04:11:14,277 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 [2019-11-20 04:11:14,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 04:11:14,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-11-20 04:11:14,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 04:11:14,278 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:14,278 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:11:14,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:14,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 04:11:14,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:14,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 04:11:14,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:14,466 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-20 04:11:14,466 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15 Second operand 6 states. [2019-11-20 04:11:14,550 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 48 states and 60 transitions. Complement of second has 7 states. [2019-11-20 04:11:14,552 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 [2019-11-20 04:11:14,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 04:11:14,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-11-20 04:11:14,552 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 04:11:14,552 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:14,553 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:11:14,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:14,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 04:11:14,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:14,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-20 04:11:14,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:14,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:14,689 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2019-11-20 04:11:14,690 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15 Second operand 6 states. [2019-11-20 04:11:14,849 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 34 states and 44 transitions. cyclomatic complexity: 15. Second operand 6 states. Result 74 states and 93 transitions. Complement of second has 12 states. [2019-11-20 04:11:14,851 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 [2019-11-20 04:11:14,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 04:11:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 53 transitions. [2019-11-20 04:11:14,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 53 transitions. Stem has 24 letters. Loop has 3 letters. [2019-11-20 04:11:14,852 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:14,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 53 transitions. Stem has 27 letters. Loop has 3 letters. [2019-11-20 04:11:14,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:14,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 53 transitions. Stem has 24 letters. Loop has 6 letters. [2019-11-20 04:11:14,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:14,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 74 states and 93 transitions. [2019-11-20 04:11:14,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:14,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 74 states to 52 states and 66 transitions. [2019-11-20 04:11:14,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 04:11:14,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-20 04:11:14,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 66 transitions. [2019-11-20 04:11:14,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:14,858 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 66 transitions. [2019-11-20 04:11:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 66 transitions. [2019-11-20 04:11:14,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2019-11-20 04:11:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-11-20 04:11:14,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2019-11-20 04:11:14,861 INFO L711 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2019-11-20 04:11:14,862 INFO L591 BuchiCegarLoop]: Abstraction has 43 states and 55 transitions. [2019-11-20 04:11:14,862 INFO L424 BuchiCegarLoop]: ======== Iteration 11============ [2019-11-20 04:11:14,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 55 transitions. [2019-11-20 04:11:14,862 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:14,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:14,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:14,863 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:14,864 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:14,864 INFO L794 eck$LassoCheckResult]: Stem: 2058#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2055#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; 2056#L532 assume !(main_~length1~0 < 1); 2057#L532-2 assume !(main_~length2~0 < 1); 2052#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; 2053#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; 2062#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2063#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; 2065#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2066#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 2039#L541-4 main_~i~1 := 0; 2040#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; 2050#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2051#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 2054#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; 2043#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2044#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; 2071#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2070#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; 2069#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 2068#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2049#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; 2045#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2046#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; 2077#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2075#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; 2074#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 2047#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2048#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; 2067#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2035#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; 2036#L520-5 [2019-11-20 04:11:14,864 INFO L796 eck$LassoCheckResult]: Loop: 2036#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2041#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; 2059#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 2036#L520-5 [2019-11-20 04:11:14,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:14,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1850368321, now seen corresponding path program 4 times [2019-11-20 04:11:14,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:14,865 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996237164] [2019-11-20 04:11:14,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:15,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996237164] [2019-11-20 04:11:15,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954296148] [2019-11-20 04:11:15,585 INFO L92 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:15,641 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-11-20 04:11:15,641 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:11:15,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 42 conjunts are in the unsatisfiable core [2019-11-20 04:11:15,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:15,669 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:15,669 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 [2019-11-20 04:11:15,669 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:15,689 INFO L567 ElimStorePlain]: treesize reduction 10, result has 67.7 percent of original size [2019-11-20 04:11:15,689 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:15,690 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:21 [2019-11-20 04:11:15,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:15,954 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:15,954 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 55 [2019-11-20 04:11:15,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:15,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:15,957 INFO L496 ElimStorePlain]: Start of recursive call 2: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 04:11:15,963 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 41 treesize of output 35 [2019-11-20 04:11:15,964 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 04:11:16,002 INFO L567 ElimStorePlain]: treesize reduction 40, result has 56.0 percent of original size [2019-11-20 04:11:16,012 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 34 treesize of output 20 [2019-11-20 04:11:16,012 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:16,027 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:16,028 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-11-20 04:11:16,028 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:101, output treesize:36 [2019-11-20 04:11:16,280 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:11:16,281 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 10 [2019-11-20 04:11:16,282 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:16,295 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:16,296 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:16,296 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:46, output treesize:3 [2019-11-20 04:11:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:16,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:11:16,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2019-11-20 04:11:16,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130179121] [2019-11-20 04:11:16,308 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 04:11:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:16,309 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 5 times [2019-11-20 04:11:16,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:16,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456243503] [2019-11-20 04:11:16,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:16,316 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:16,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:16,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-20 04:11:16,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2019-11-20 04:11:16,410 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. cyclomatic complexity: 18 Second operand 27 states. [2019-11-20 04:11:17,827 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-11-20 04:11:17,965 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-11-20 04:11:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:18,142 INFO L93 Difference]: Finished difference Result 97 states and 118 transitions. [2019-11-20 04:11:18,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-20 04:11:18,142 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 97 states and 118 transitions. [2019-11-20 04:11:18,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:18,144 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 97 states to 46 states and 58 transitions. [2019-11-20 04:11:18,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 04:11:18,144 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 04:11:18,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 58 transitions. [2019-11-20 04:11:18,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:18,144 INFO L688 BuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2019-11-20 04:11:18,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 58 transitions. [2019-11-20 04:11:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2019-11-20 04:11:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-20 04:11:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2019-11-20 04:11:18,147 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2019-11-20 04:11:18,147 INFO L591 BuchiCegarLoop]: Abstraction has 45 states and 57 transitions. [2019-11-20 04:11:18,147 INFO L424 BuchiCegarLoop]: ======== Iteration 12============ [2019-11-20 04:11:18,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 57 transitions. [2019-11-20 04:11:18,147 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:18,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:18,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:18,148 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:18,149 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:18,149 INFO L794 eck$LassoCheckResult]: Stem: 2353#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2350#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; 2351#L532 assume !(main_~length1~0 < 1); 2352#L532-2 assume !(main_~length2~0 < 1); 2347#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; 2348#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; 2359#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2360#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; 2357#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2358#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; 2372#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2371#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 2335#L541-4 main_~i~1 := 0; 2336#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; 2345#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2346#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 2349#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; 2342#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2343#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; 2368#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2367#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; 2366#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 2340#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2341#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; 2344#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2333#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; 2334#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2373#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; 2365#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 2364#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2363#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; 2361#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2331#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; 2332#L520-5 [2019-11-20 04:11:18,149 INFO L796 eck$LassoCheckResult]: Loop: 2332#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2337#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; 2354#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 2332#L520-5 [2019-11-20 04:11:18,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:18,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1120447453, now seen corresponding path program 5 times [2019-11-20 04:11:18,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:18,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509077592] [2019-11-20 04:11:18,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:18,188 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:18,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:18,189 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 6 times [2019-11-20 04:11:18,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:18,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270327204] [2019-11-20 04:11:18,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:18,196 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:18,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:18,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1235809887, now seen corresponding path program 2 times [2019-11-20 04:11:18,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:18,197 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255436855] [2019-11-20 04:11:18,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:18,235 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:20,293 WARN L191 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 314 DAG size of output: 225 [2019-11-20 04:11:20,651 WARN L191 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-11-20 04:11:20,653 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:11:20,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:11:20,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:11:20,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:11:20,653 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:11:20,654 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:20,654 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:11:20,654 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:11:20,654 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration12_Lasso [2019-11-20 04:11:20,654 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:11:20,654 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:11:20,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:20,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,513 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 117 [2019-11-20 04:11:21,730 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-11-20 04:11:21,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:21,955 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-11-20 04:11:22,116 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-20 04:11:22,278 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 04:11:24,547 WARN L191 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2019-11-20 04:11:24,703 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:11:24,703 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:24,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:24,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:24,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:24,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:24,736 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:24,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:24,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:24,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,758 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,759 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,759 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,759 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:24,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:24,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,765 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:24,767 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:24,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,773 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,773 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:24,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:24,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,781 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,781 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:24,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:24,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:24,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:24,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:24,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:24,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:24,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:24,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:24,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:24,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:24,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:24,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:24,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:24,862 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:11:25,018 INFO L443 ModelExtractionUtils]: Simplification made 47 calls to the SMT solver. [2019-11-20 04:11:25,018 INFO L444 ModelExtractionUtils]: 8 out of 58 variables were initially zero. Simplification set additionally 45 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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) [2019-11-20 04:11:25,025 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:25,028 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 04:11:25,028 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:11:25,028 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_4, ULTIMATE.start_substring_~ps2~0.offset) = 2*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_4 - 1*ULTIMATE.start_substring_~ps2~0.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_substring_~s.base)_2 + 2*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_4 >= 0] [2019-11-20 04:11:25,306 INFO L297 tatePredicateManager]: 54 out of 57 supporting invariants were superfluous and have been removed [2019-11-20 04:11:25,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 04:11:25,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:25,390 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 64 conjunts are in the unsatisfiable core [2019-11-20 04:11:25,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:25,404 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:25,405 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 [2019-11-20 04:11:25,405 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:25,429 INFO L567 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-11-20 04:11:25,429 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:25,429 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:25 [2019-11-20 04:11:25,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:25,664 INFO L343 Elim1Store]: treesize reduction 36, result has 21.7 percent of original size [2019-11-20 04:11:25,665 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 66 treesize of output 50 [2019-11-20 04:11:25,665 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:25,694 INFO L343 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2019-11-20 04:11:25,695 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 69 treesize of output 51 [2019-11-20 04:11:25,695 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:25,815 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2019-11-20 04:11:25,816 INFO L567 ElimStorePlain]: treesize reduction 6, result has 94.1 percent of original size [2019-11-20 04:11:25,816 INFO L496 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. [2019-11-20 04:11:25,816 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:96 [2019-11-20 04:11:26,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,022 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,040 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:26,043 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:11:26,054 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:26,055 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 48 treesize of output 47 [2019-11-20 04:11:26,055 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:26,061 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:26,078 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:26,078 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 50 treesize of output 1 [2019-11-20 04:11:26,078 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:26,120 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:26,125 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:26,168 INFO L343 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2019-11-20 04:11:26,169 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 49 treesize of output 69 [2019-11-20 04:11:26,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,170 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:26,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:26,237 INFO L343 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2019-11-20 04:11:26,237 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 51 treesize of output 71 [2019-11-20 04:11:26,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:11:26,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,239 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:26,240 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:26,346 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 22 [2019-11-20 04:11:26,346 INFO L567 ElimStorePlain]: treesize reduction 21, result has 71.6 percent of original size [2019-11-20 04:11:26,347 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-11-20 04:11:26,347 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:199, output treesize:50 [2019-11-20 04:11:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:26,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:11:26,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:26,535 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 [2019-11-20 04:11:26,535 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 57 transitions. cyclomatic complexity: 18 Second operand 15 states. [2019-11-20 04:11:26,971 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-11-20 04:11:27,073 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 57 transitions. cyclomatic complexity: 18. Second operand 15 states. Result 77 states and 97 transitions. Complement of second has 16 states. [2019-11-20 04:11:27,074 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 [2019-11-20 04:11:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 04:11:27,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 44 transitions. [2019-11-20 04:11:27,074 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 44 transitions. Stem has 33 letters. Loop has 3 letters. [2019-11-20 04:11:27,074 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:27,075 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:11:27,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:27,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:27,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 64 conjunts are in the unsatisfiable core [2019-11-20 04:11:27,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:27,199 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:27,199 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 [2019-11-20 04:11:27,199 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,224 INFO L567 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-11-20 04:11:27,224 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,224 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:25 [2019-11-20 04:11:27,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,395 INFO L343 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2019-11-20 04:11:27,395 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 69 treesize of output 51 [2019-11-20 04:11:27,395 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,411 INFO L343 Elim1Store]: treesize reduction 36, result has 21.7 percent of original size [2019-11-20 04:11:27,411 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 66 treesize of output 50 [2019-11-20 04:11:27,411 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,494 INFO L567 ElimStorePlain]: treesize reduction 6, result has 94.1 percent of original size [2019-11-20 04:11:27,494 INFO L496 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. [2019-11-20 04:11:27,495 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:96 [2019-11-20 04:11:27,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:27,646 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:11:27,656 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:27,656 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 48 treesize of output 47 [2019-11-20 04:11:27,656 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:27,671 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:27,671 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 50 treesize of output 1 [2019-11-20 04:11:27,671 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,714 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:27,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:27,761 INFO L343 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2019-11-20 04:11:27,761 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 49 treesize of output 69 [2019-11-20 04:11:27,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,762 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,767 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:27,802 INFO L343 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2019-11-20 04:11:27,802 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 51 treesize of output 71 [2019-11-20 04:11:27,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:11:27,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,804 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:27,805 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:27,878 INFO L567 ElimStorePlain]: treesize reduction 62, result has 46.1 percent of original size [2019-11-20 04:11:27,879 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-11-20 04:11:27,879 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:199, output treesize:50 [2019-11-20 04:11:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:27,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:11:27,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:27,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:27,990 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 [2019-11-20 04:11:27,990 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 57 transitions. cyclomatic complexity: 18 Second operand 15 states. [2019-11-20 04:11:28,350 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-11-20 04:11:28,437 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 57 transitions. cyclomatic complexity: 18. Second operand 15 states. Result 77 states and 97 transitions. Complement of second has 16 states. [2019-11-20 04:11:28,437 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 [2019-11-20 04:11:28,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 04:11:28,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 44 transitions. [2019-11-20 04:11:28,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 44 transitions. Stem has 33 letters. Loop has 3 letters. [2019-11-20 04:11:28,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:28,438 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:11:28,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:28,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 64 conjunts are in the unsatisfiable core [2019-11-20 04:11:28,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:28,506 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:28,507 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 [2019-11-20 04:11:28,507 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:28,528 INFO L567 ElimStorePlain]: treesize reduction 10, result has 71.4 percent of original size [2019-11-20 04:11:28,529 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 04:11:28,529 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:25 [2019-11-20 04:11:28,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:28,702 INFO L343 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2019-11-20 04:11:28,702 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 69 treesize of output 51 [2019-11-20 04:11:28,702 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:28,718 INFO L343 Elim1Store]: treesize reduction 36, result has 21.7 percent of original size [2019-11-20 04:11:28,718 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 66 treesize of output 50 [2019-11-20 04:11:28,718 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:28,798 INFO L567 ElimStorePlain]: treesize reduction 6, result has 94.1 percent of original size [2019-11-20 04:11:28,798 INFO L496 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. [2019-11-20 04:11:28,798 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:136, output treesize:96 [2019-11-20 04:11:28,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:28,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:28,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:28,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:28,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:28,941 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:28,944 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 04:11:28,953 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:28,953 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 50 treesize of output 1 [2019-11-20 04:11:28,954 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:28,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:28,968 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:28,968 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 48 treesize of output 47 [2019-11-20 04:11:28,968 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:29,010 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 04:11:29,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:29,070 INFO L343 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2019-11-20 04:11:29,070 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 49 treesize of output 69 [2019-11-20 04:11:29,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:29,070 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:29,075 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 04:11:29,109 INFO L343 Elim1Store]: treesize reduction 12, result has 78.9 percent of original size [2019-11-20 04:11:29,110 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 51 treesize of output 71 [2019-11-20 04:11:29,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:29,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 04:11:29,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-20 04:11:29,111 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-20 04:11:29,169 INFO L567 ElimStorePlain]: treesize reduction 15, result has 77.9 percent of original size [2019-11-20 04:11:29,170 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 3 xjuncts. [2019-11-20 04:11:29,170 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:199, output treesize:50 [2019-11-20 04:11:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:29,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 04:11:29,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:29,297 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 [2019-11-20 04:11:29,297 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 57 transitions. cyclomatic complexity: 18 Second operand 15 states. [2019-11-20 04:11:29,931 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-11-20 04:11:30,455 WARN L191 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 66 [2019-11-20 04:11:42,731 WARN L191 SmtUtils]: Spent 12.18 s on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2019-11-20 04:11:42,987 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-11-20 04:11:43,208 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-11-20 04:11:43,380 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 57 transitions. cyclomatic complexity: 18. Second operand 15 states. Result 164 states and 211 transitions. Complement of second has 32 states. [2019-11-20 04:11:43,381 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 [2019-11-20 04:11:43,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 04:11:43,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 91 transitions. [2019-11-20 04:11:43,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 91 transitions. Stem has 33 letters. Loop has 3 letters. [2019-11-20 04:11:43,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:43,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 91 transitions. Stem has 36 letters. Loop has 3 letters. [2019-11-20 04:11:43,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:43,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 18 states and 91 transitions. Stem has 33 letters. Loop has 6 letters. [2019-11-20 04:11:43,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:43,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 164 states and 211 transitions. [2019-11-20 04:11:43,385 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 04:11:43,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 164 states to 141 states and 184 transitions. [2019-11-20 04:11:43,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2019-11-20 04:11:43,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2019-11-20 04:11:43,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 141 states and 184 transitions. [2019-11-20 04:11:43,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:43,388 INFO L688 BuchiCegarLoop]: Abstraction has 141 states and 184 transitions. [2019-11-20 04:11:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states and 184 transitions. [2019-11-20 04:11:43,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 101. [2019-11-20 04:11:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-20 04:11:43,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 132 transitions. [2019-11-20 04:11:43,397 INFO L711 BuchiCegarLoop]: Abstraction has 101 states and 132 transitions. [2019-11-20 04:11:43,397 INFO L591 BuchiCegarLoop]: Abstraction has 101 states and 132 transitions. [2019-11-20 04:11:43,397 INFO L424 BuchiCegarLoop]: ======== Iteration 13============ [2019-11-20 04:11:43,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 132 transitions. [2019-11-20 04:11:43,398 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 04:11:43,398 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:43,398 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:43,399 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:43,399 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:43,400 INFO L794 eck$LassoCheckResult]: Stem: 3454#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3451#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; 3452#L532 assume !(main_~length1~0 < 1); 3453#L532-2 assume !(main_~length2~0 < 1); 3447#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; 3448#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; 3462#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 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; 3468#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3463#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; 3459#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3460#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 3435#L541-4 main_~i~1 := 0; 3436#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; 3445#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 3446#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 3449#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; 3450#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3504#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; 3503#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3502#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; 3501#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 3500#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 3499#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; 3498#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3497#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; 3496#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3483#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; 3482#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 3481#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 3480#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; 3478#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3477#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; 3476#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3455#L520-1 [2019-11-20 04:11:43,400 INFO L796 eck$LassoCheckResult]: Loop: 3455#L520-1 assume !substring_#t~short6; 3456#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 3472#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3455#L520-1 [2019-11-20 04:11:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:43,400 INFO L82 PathProgramCache]: Analyzing trace with hash -374132617, now seen corresponding path program 6 times [2019-11-20 04:11:43,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:43,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741773019] [2019-11-20 04:11:43,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,436 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:43,437 INFO L82 PathProgramCache]: Analyzing trace with hash 92531, now seen corresponding path program 1 times [2019-11-20 04:11:43,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:43,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574982554] [2019-11-20 04:11:43,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:43,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574982554] [2019-11-20 04:11:43,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:11:43,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 04:11:43,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824886529] [2019-11-20 04:11:43,458 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 04:11:43,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:11:43,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:11:43,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:11:43,459 INFO L87 Difference]: Start difference. First operand 101 states and 132 transitions. cyclomatic complexity: 45 Second operand 3 states. [2019-11-20 04:11:43,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:11:43,482 INFO L93 Difference]: Finished difference Result 96 states and 113 transitions. [2019-11-20 04:11:43,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:11:43,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 96 states and 113 transitions. [2019-11-20 04:11:43,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:43,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 96 states to 57 states and 68 transitions. [2019-11-20 04:11:43,484 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2019-11-20 04:11:43,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2019-11-20 04:11:43,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 68 transitions. [2019-11-20 04:11:43,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 04:11:43,484 INFO L688 BuchiCegarLoop]: Abstraction has 57 states and 68 transitions. [2019-11-20 04:11:43,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 68 transitions. [2019-11-20 04:11:43,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2019-11-20 04:11:43,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-20 04:11:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2019-11-20 04:11:43,488 INFO L711 BuchiCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-11-20 04:11:43,488 INFO L591 BuchiCegarLoop]: Abstraction has 54 states and 64 transitions. [2019-11-20 04:11:43,488 INFO L424 BuchiCegarLoop]: ======== Iteration 14============ [2019-11-20 04:11:43,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 64 transitions. [2019-11-20 04:11:43,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 04:11:43,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 04:11:43,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 04:11:43,490 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:11:43,490 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 04:11:43,490 INFO L794 eck$LassoCheckResult]: Stem: 3656#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3653#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; 3654#L532 assume !(main_~length1~0 < 1); 3655#L532-2 assume !(main_~length2~0 < 1); 3650#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; 3651#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; 3660#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3661#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; 3663#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3680#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; 3678#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3676#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; 3677#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 3682#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 3681#L541-4 main_~i~1 := 0; 3679#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; 3675#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 3674#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 3673#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; 3672#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3670#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; 3669#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3668#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; 3667#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 3666#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 3665#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; 3645#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3646#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; 3662#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3684#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; 3683#L520-3 assume !substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6; 3642#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 3643#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; 3647#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 3634#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; 3635#L520-5 [2019-11-20 04:11:43,490 INFO L796 eck$LassoCheckResult]: Loop: 3635#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 3640#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; 3657#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem5;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~short6;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; 3635#L520-5 [2019-11-20 04:11:43,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:43,490 INFO L82 PathProgramCache]: Analyzing trace with hash 78845573, now seen corresponding path program 7 times [2019-11-20 04:11:43,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:43,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076337153] [2019-11-20 04:11:43,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:43,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,554 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:43,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:43,554 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 7 times [2019-11-20 04:11:43,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:43,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547008153] [2019-11-20 04:11:43,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:43,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:43,562 INFO L82 PathProgramCache]: Analyzing trace with hash -458587971, now seen corresponding path program 3 times [2019-11-20 04:11:43,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:11:43,562 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066648657] [2019-11-20 04:11:43,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:11:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 04:11:43,629 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 04:11:43,751 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-11-20 04:11:46,795 WARN L191 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 328 DAG size of output: 235 [2019-11-20 04:11:47,221 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-20 04:11:47,223 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 04:11:47,223 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 04:11:47,223 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 04:11:47,223 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 04:11:47,224 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 04:11:47,224 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 04:11:47,224 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 04:11:47,224 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 04:11:47,224 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration14_Lasso [2019-11-20 04:11:47,224 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 04:11:47,224 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 04:11:47,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:47,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,080 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 120 [2019-11-20 04:11:48,339 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2019-11-20 04:11:48,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 04:11:48,602 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-11-20 04:11:48,819 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 04:11:51,260 WARN L191 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2019-11-20 04:11:51,390 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 04:11:51,390 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,417 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 [2019-11-20 04:11:51,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,420 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:51,420 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:51,422 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,431 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,438 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,454 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:51,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:51,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,485 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,485 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,486 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:51,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:51,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,499 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,502 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,508 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,531 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,535 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 [2019-11-20 04:11:51,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,537 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,539 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,544 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,544 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,554 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:51,554 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:51,556 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,563 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,563 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:51,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:51,576 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,580 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,582 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 04:11:51,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 04:11:51,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 04:11:51,584 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 04:11:51,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 04:11:51,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 04:11:51,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 04:11:51,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 04:11:51,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 04:11:51,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 04:11:51,626 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 04:11:51,668 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-20 04:11:51,669 INFO L444 ModelExtractionUtils]: 11 out of 61 variables were initially zero. Simplification set additionally 47 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ee36a443-3c46-4705-9d13-4ef7fb21b8ca/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 [2019-11-20 04:11:51,674 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 04:11:51,676 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 04:11:51,676 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 04:11:51,676 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_7, ULTIMATE.start_substring_~ps2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_7 - 1*ULTIMATE.start_substring_~ps2~0.offset Supporting invariants [] [2019-11-20 04:11:51,852 INFO L297 tatePredicateManager]: 49 out of 50 supporting invariants were superfluous and have been removed [2019-11-20 04:11:51,854 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 04:11:51,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:51,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 04:11:51,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:51,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:11:51,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:51,953 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 [2019-11-20 04:11:51,953 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 64 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-11-20 04:11:52,014 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 64 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 62 states and 73 transitions. Complement of second has 9 states. [2019-11-20 04:11:52,015 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 [2019-11-20 04:11:52,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 04:11:52,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2019-11-20 04:11:52,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 35 letters. Loop has 3 letters. [2019-11-20 04:11:52,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:52,015 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:11:52,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:52,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 04:11:52,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:52,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:11:52,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:52,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:52,149 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-20 04:11:52,149 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 64 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-11-20 04:11:52,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 64 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 62 states and 73 transitions. Complement of second has 9 states. [2019-11-20 04:11:52,222 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 [2019-11-20 04:11:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 04:11:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2019-11-20 04:11:52,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 35 letters. Loop has 3 letters. [2019-11-20 04:11:52,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:52,223 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 04:11:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:11:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:52,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-20 04:11:52,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:11:52,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 04:11:52,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:11:52,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:11:52,363 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-20 04:11:52,363 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 54 states and 64 transitions. cyclomatic complexity: 17 Second operand 6 states. [2019-11-20 04:11:52,453 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 54 states and 64 transitions. cyclomatic complexity: 17. Second operand 6 states. Result 76 states and 89 transitions. Complement of second has 8 states. [2019-11-20 04:11:52,453 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 [2019-11-20 04:11:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 04:11:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2019-11-20 04:11:52,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 35 letters. Loop has 3 letters. [2019-11-20 04:11:52,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:52,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 38 letters. Loop has 3 letters. [2019-11-20 04:11:52,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:52,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 35 letters. Loop has 6 letters. [2019-11-20 04:11:52,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 04:11:52,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 89 transitions. [2019-11-20 04:11:52,456 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:11:52,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 0 states and 0 transitions. [2019-11-20 04:11:52,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 04:11:52,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 04:11:52,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 04:11:52,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 04:11:52,456 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:11:52,456 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:11:52,456 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:11:52,457 INFO L424 BuchiCegarLoop]: ======== Iteration 15============ [2019-11-20 04:11:52,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:11:52,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 04:11:52,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 04:11:52,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 04:11:52 BoogieIcfgContainer [2019-11-20 04:11:52,465 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 04:11:52,465 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:11:52,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:11:52,466 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:11:52,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:10:56" (3/4) ... [2019-11-20 04:11:52,470 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 04:11:52,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:11:52,471 INFO L168 Benchmark]: Toolchain (without parser) took 56909.37 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 604.0 MB). Free memory was 939.3 MB in the beginning and 1.2 GB in the end (delta: -309.1 MB). Peak memory consumption was 294.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:11:52,471 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:11:52,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 04:11:52,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:11:52,472 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:11:52,473 INFO L168 Benchmark]: RCFGBuilder took 449.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 04:11:52,474 INFO L168 Benchmark]: BuchiAutomizer took 55900.35 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 474.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -164.1 MB). Peak memory consumption was 310.3 MB. Max. memory is 11.5 GB. [2019-11-20 04:11:52,475 INFO L168 Benchmark]: Witness Printer took 4.35 ms. Allocated memory is still 1.6 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:11:52,476 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 475.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 449.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 55900.35 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 474.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -164.1 MB). Peak memory consumption was 310.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.35 ms. Allocated memory is still 1.6 GB. Free memory is still 1.2 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 14 terminating modules (7 trivial, 4 deterministic, 3 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 -1 * ps + length1 and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString2] + -1 * pt and consists of 5 locations. One nondeterministic module has affine ranking function -2 * ps2 + 3 * unknown-#length-unknown[nondetString2] and consists of 7 locations. One nondeterministic module has affine ranking function 2 * unknown-#length-unknown[nondetString2] + -1 * ps2 and consists of 18 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * ps2 and consists of 6 locations. 7 modules have a trivial ranking function, the largest among these consists of 27 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 55.8s and 15 iterations. TraceHistogramMax:4. Analysis of lassos took 32.9s. Construction of modules took 1.4s. Büchi inclusion checks took 21.2s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 64 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 101 states and ocurred in iteration 12. Nontrivial modules had stage [4, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 337 SDtfs, 1130 SDslu, 896 SDs, 0 SdLazy, 1398 SolverSat, 230 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU3 SILI0 SILT0 lasso7 LassoPreprocessingBenchmarks: Lassos: inital359 mio100 ax106 hnf99 lsp90 ukn65 mio100 lsp49 div100 bol100 ite100 ukn100 eq189 hnf88 smp97 dnf487 smp80 tf100 neg96 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 167ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...