./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 54ff0e2671f1fbdd267f9aba90cfe8fb60d3ccde ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:29:11,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:29:11,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:29:11,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:29:11,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:29:11,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:29:11,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:29:11,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:29:11,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:29:11,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:29:11,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:29:11,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:29:11,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:29:11,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:29:11,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:29:11,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:29:11,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:29:11,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:29:11,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:29:11,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:29:11,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:29:11,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:29:11,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:29:11,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:29:11,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:29:11,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:29:11,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:29:11,326 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:29:11,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:29:11,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:29:11,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:29:11,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:29:11,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:29:11,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:29:11,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:29:11,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:29:11,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:29:11,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:29:11,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:29:11,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:29:11,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:29:11,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 01:29:11,349 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:29:11,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:29:11,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:29:11,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:29:11,350 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:29:11,351 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 01:29:11,351 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 01:29:11,351 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 01:29:11,351 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 01:29:11,351 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 01:29:11,351 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 01:29:11,352 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:29:11,352 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 01:29:11,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:29:11,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:29:11,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 01:29:11,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 01:29:11,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 01:29:11,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:29:11,353 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 01:29:11,353 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:29:11,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 01:29:11,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:29:11,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:29:11,357 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 01:29:11,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:29:11,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:29:11,358 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 01:29:11,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 01:29:11,359 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_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54ff0e2671f1fbdd267f9aba90cfe8fb60d3ccde [2019-11-20 01:29:11,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:29:11,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:29:11,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:29:11,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:29:11,548 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:29:11,549 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i [2019-11-20 01:29:11,596 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/data/3711c0135/d30dc8d9b18d4db89b299050508ab87c/FLAGddd4e8c77 [2019-11-20 01:29:12,108 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:29:12,109 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/sv-benchmarks/c/termination-memory-alloca/cstrcspn-alloca-2.i [2019-11-20 01:29:12,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/data/3711c0135/d30dc8d9b18d4db89b299050508ab87c/FLAGddd4e8c77 [2019-11-20 01:29:12,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/data/3711c0135/d30dc8d9b18d4db89b299050508ab87c [2019-11-20 01:29:12,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:29:12,400 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:29:12,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:29:12,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:29:12,404 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:29:12,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc7e569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12, skipping insertion in model container [2019-11-20 01:29:12,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,414 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:29:12,468 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:29:12,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:29:12,780 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:29:12,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:29:12,895 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:29:12,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12 WrapperNode [2019-11-20 01:29:12,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:29:12,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:29:12,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:29:12,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:29:12,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:29:12,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:29:12,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:29:12,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:29:12,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... [2019-11-20 01:29:12,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:29:12,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:29:12,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:29:12,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:29:12,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:29:13,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:29:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:29:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:29:13,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:29:13,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:29:13,362 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:29:13,362 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 01:29:13,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:29:13 BoogieIcfgContainer [2019-11-20 01:29:13,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:29:13,364 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 01:29:13,364 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 01:29:13,367 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 01:29:13,368 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:29:13,368 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 01:29:12" (1/3) ... [2019-11-20 01:29:13,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aadb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:29:13, skipping insertion in model container [2019-11-20 01:29:13,369 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:29:13,369 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:29:12" (2/3) ... [2019-11-20 01:29:13,369 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aadb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 01:29:13, skipping insertion in model container [2019-11-20 01:29:13,370 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 01:29:13,370 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:29:13" (3/3) ... [2019-11-20 01:29:13,371 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcspn-alloca-2.i [2019-11-20 01:29:13,416 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 01:29:13,416 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 01:29:13,417 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 01:29:13,418 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:29:13,418 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:29:13,418 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 01:29:13,418 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:29:13,419 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 01:29:13,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-20 01:29:13,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 01:29:13,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:29:13,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:29:13,459 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 01:29:13,459 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:29:13,459 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 01:29:13,459 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-11-20 01:29:13,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 01:29:13,461 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:29:13,461 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:29:13,461 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 01:29:13,461 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-11-20 01:29:13,466 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 7#L565true assume !(main_~length1~0 < 1); 12#L565-2true assume !(main_~length2~0 < 1); 6#L568-1true call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;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);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 3#L552-4true [2019-11-20 01:29:13,467 INFO L796 eck$LassoCheckResult]: Loop: 3#L552-4true call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 14#L552-1true assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 16#L555-5true assume !true; 19#L555-6true call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 5#L557true assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 20#L552-3true cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 3#L552-4true [2019-11-20 01:29:13,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:13,472 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-20 01:29:13,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:13,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128419611] [2019-11-20 01:29:13,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:13,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,625 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:13,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:13,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1454917130, now seen corresponding path program 1 times [2019-11-20 01:29:13,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:13,626 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941980554] [2019-11-20 01:29:13,626 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:13,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:29:13,658 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941980554] [2019-11-20 01:29:13,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:29:13,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:29:13,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605065518] [2019-11-20 01:29:13,662 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-20 01:29:13,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:29:13,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:29:13,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:29:13,674 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-11-20 01:29:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:29:13,679 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2019-11-20 01:29:13,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:29:13,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2019-11-20 01:29:13,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 01:29:13,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 17 transitions. [2019-11-20 01:29:13,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2019-11-20 01:29:13,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-11-20 01:29:13,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2019-11-20 01:29:13,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:29:13,687 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 01:29:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2019-11-20 01:29:13,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-11-20 01:29:13,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-20 01:29:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-11-20 01:29:13,709 INFO L711 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 01:29:13,709 INFO L591 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-11-20 01:29:13,709 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 01:29:13,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2019-11-20 01:29:13,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2019-11-20 01:29:13,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:29:13,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:29:13,711 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 01:29:13,711 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:29:13,711 INFO L794 eck$LassoCheckResult]: Stem: 54#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 53#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 49#L565 assume !(main_~length1~0 < 1); 50#L565-2 assume !(main_~length2~0 < 1); 48#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;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);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 44#L552-4 [2019-11-20 01:29:13,711 INFO L796 eck$LassoCheckResult]: Loop: 44#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 45#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 56#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 51#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 52#L555-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~short7; 55#L555-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 46#L557 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 47#L552-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 44#L552-4 [2019-11-20 01:29:13,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:13,712 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 2 times [2019-11-20 01:29:13,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:13,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857478194] [2019-11-20 01:29:13,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,750 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:13,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:13,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1927396657, now seen corresponding path program 1 times [2019-11-20 01:29:13,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:13,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890225132] [2019-11-20 01:29:13,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,781 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:13,781 INFO L82 PathProgramCache]: Analyzing trace with hash -102988426, now seen corresponding path program 1 times [2019-11-20 01:29:13,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:13,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912631300] [2019-11-20 01:29:13,782 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:13,880 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:14,122 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-11-20 01:29:14,424 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-11-20 01:29:14,809 WARN L191 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-11-20 01:29:14,986 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-20 01:29:15,000 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:29:15,001 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:29:15,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:29:15,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:29:15,001 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:29:15,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:15,002 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:29:15,002 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:29:15,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-2.i_Iteration2_Lasso [2019-11-20 01:29:15,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:29:15,003 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:29:15,028 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 01:29:15,033 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 01:29:15,039 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 01:29:15,048 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 01:29:15,054 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 01:29:15,388 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-11-20 01:29:15,611 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-11-20 01:29:15,611 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 01:29:15,614 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 01:29:15,616 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 01:29:15,622 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 01:29:15,627 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 01:29:15,629 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 01:29:15,638 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 01:29:15,640 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 01:29:15,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:29:15,650 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 01:29:15,654 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 01:29:15,656 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 01:29:15,659 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 01:29:15,662 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 01:29:15,664 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 01:29:15,667 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 01:29:16,344 WARN L191 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2019-11-20 01:29:16,518 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:29:16,524 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:16,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:16,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:16,537 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 01:29:16,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,551 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 01:29:16,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:16,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,553 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:16,554 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 01:29:16,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:16,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,585 INFO L402 nArgumentSynthesizer]: A total of 2 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 01:29:16,590 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:16,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,600 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:16,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,602 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:16,602 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:16,603 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,622 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:16,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,636 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,636 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:16,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,668 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 01:29:16,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:16,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:29:16,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:16,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,693 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,702 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:16,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:16,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,721 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2019-11-20 01:29:16,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,729 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-20 01:29:16,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:16,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,752 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,752 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,752 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,764 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,764 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:16,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:16,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,795 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:16,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:16,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:16,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:16,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:16,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:16,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:16,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:16,837 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:16,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:16,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:16,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:16,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:16,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:16,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:16,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:16,870 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:29:16,988 INFO L443 ModelExtractionUtils]: Simplification made 16 calls to the SMT solver. [2019-11-20 01:29:16,988 INFO L444 ModelExtractionUtils]: 7 out of 28 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 01:29:17,002 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:17,005 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 01:29:17,006 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:29:17,006 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1, ULTIMATE.start_cstrcspn_~sc1~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12.base)_1 - 1*ULTIMATE.start_cstrcspn_~sc1~0.offset Supporting invariants [] [2019-11-20 01:29:17,040 INFO L297 tatePredicateManager]: 8 out of 9 supporting invariants were superfluous and have been removed [2019-11-20 01:29:17,048 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 01:29:17,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:17,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 01:29:17,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:29:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:17,130 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 01:29:17,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:29:17,152 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 01:29:17,155 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 01:29:17,156 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 01:29:17,230 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 21 states and 28 transitions. Complement of second has 4 states. [2019-11-20 01:29:17,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 01:29:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:29:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 17 transitions. [2019-11-20 01:29:17,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 8 letters. [2019-11-20 01:29:17,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:29:17,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 13 letters. Loop has 8 letters. [2019-11-20 01:29:17,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:29:17,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 17 transitions. Stem has 5 letters. Loop has 16 letters. [2019-11-20 01:29:17,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:29:17,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2019-11-20 01:29:17,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 01:29:17,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 25 transitions. [2019-11-20 01:29:17,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-20 01:29:17,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 01:29:17,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2019-11-20 01:29:17,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:29:17,242 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-20 01:29:17,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2019-11-20 01:29:17,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 01:29:17,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 01:29:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2019-11-20 01:29:17,245 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-20 01:29:17,245 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2019-11-20 01:29:17,245 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 01:29:17,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2019-11-20 01:29:17,248 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 01:29:17,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:29:17,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:29:17,249 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:29:17,249 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 01:29:17,250 INFO L794 eck$LassoCheckResult]: Stem: 192#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 191#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 185#L565 assume !(main_~length1~0 < 1); 186#L565-2 assume !(main_~length2~0 < 1); 184#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;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);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 178#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 180#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 193#L555-5 [2019-11-20 01:29:17,250 INFO L796 eck$LassoCheckResult]: Loop: 193#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 187#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 188#L555-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 193#L555-5 [2019-11-20 01:29:17,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:17,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935595, now seen corresponding path program 1 times [2019-11-20 01:29:17,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:17,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586455873] [2019-11-20 01:29:17,251 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:17,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:17,323 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:17,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:17,327 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 1 times [2019-11-20 01:29:17,327 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:17,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300342619] [2019-11-20 01:29:17,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:17,349 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:17,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:17,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1593218778, now seen corresponding path program 1 times [2019-11-20 01:29:17,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:17,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617224752] [2019-11-20 01:29:17,352 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:17,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Exception during sending of exit command (exit): Broken pipe [2019-11-20 01:29:18,034 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 97 [2019-11-20 01:29:18,192 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-11-20 01:29:18,194 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:29:18,194 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:29:18,195 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:29:18,195 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:29:18,195 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:29:18,195 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:18,195 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:29:18,195 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:29:18,195 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-2.i_Iteration3_Lasso [2019-11-20 01:29:18,195 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:29:18,195 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:29:18,200 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 01:29:18,207 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 01:29:18,209 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 01:29:18,211 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 01:29:18,213 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 01:29:18,215 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 01:29:18,218 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 01:29:18,220 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 01:29:18,223 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 01:29:18,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:29:18,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:29:18,229 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 01:29:18,231 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 01:29:18,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:29:18,567 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-11-20 01:29:18,677 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 01:29:18,679 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 01:29:18,681 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 01:29:18,682 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 01:29:18,684 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 01:29:18,686 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 01:29:18,688 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 01:29:19,221 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-20 01:29:19,410 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:29:19,410 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,423 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,423 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,445 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,454 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,462 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 01:29:19,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,477 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,477 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,477 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,481 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,486 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 01:29:19,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,487 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,487 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,489 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,489 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,497 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 01:29:19,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,522 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 01:29:19,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,543 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:19,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,547 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 01:29:19,549 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,562 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,567 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:29:19,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:29:19,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:29:19,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:29:19,577 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,582 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 01:29:19,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,588 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,596 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,619 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:29:19,626 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,628 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,628 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:29:19,632 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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) [2019-11-20 01:29:19,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,652 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,652 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,652 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,654 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,654 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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) [2019-11-20 01:29:19,667 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,668 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-20 01:29:19,668 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2019-11-20 01:29:19,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,722 INFO L401 nArgumentSynthesizer]: We have 108 Motzkin's Theorem applications. [2019-11-20 01:29:19,722 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2019-11-20 01:29:19,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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) [2019-11-20 01:29:19,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:29:19,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:29:19,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:29:19,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:29:19,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:29:19,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:29:19,857 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,873 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:29:19,925 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-11-20 01:29:19,925 INFO L444 ModelExtractionUtils]: 22 out of 40 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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) [2019-11-20 01:29:19,929 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:29:19,932 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 01:29:19,932 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:29:19,932 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcspn_~s~0.offset, v_rep(select #length ULTIMATE.start_cstrcspn_~s~0.base)_2) = -1*ULTIMATE.start_cstrcspn_~s~0.offset + 1*v_rep(select #length ULTIMATE.start_cstrcspn_~s~0.base)_2 Supporting invariants [] [2019-11-20 01:29:19,979 INFO L297 tatePredicateManager]: 15 out of 15 supporting invariants were superfluous and have been removed [2019-11-20 01:29:19,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 01:29:19,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:20,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 01:29:20,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:29:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:20,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 01:29:20,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:29:20,035 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 01:29:20,036 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 01:29:20,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 01:29:20,055 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 25 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 43 states and 57 transitions. Complement of second has 5 states. [2019-11-20 01:29:20,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 01:29:20,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 01:29:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2019-11-20 01:29:20,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-20 01:29:20,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:29:20,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-20 01:29:20,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:29:20,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 18 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-20 01:29:20,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:29:20,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 57 transitions. [2019-11-20 01:29:20,059 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 01:29:20,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 40 transitions. [2019-11-20 01:29:20,060 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-11-20 01:29:20,060 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 01:29:20,060 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 40 transitions. [2019-11-20 01:29:20,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:29:20,061 INFO L688 BuchiCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-20 01:29:20,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 40 transitions. [2019-11-20 01:29:20,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2019-11-20 01:29:20,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-20 01:29:20,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-11-20 01:29:20,063 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-20 01:29:20,063 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-20 01:29:20,064 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 01:29:20,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-11-20 01:29:20,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 01:29:20,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:29:20,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:29:20,065 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:29:20,065 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 01:29:20,065 INFO L794 eck$LassoCheckResult]: Stem: 365#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 364#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 358#L565 assume !(main_~length1~0 < 1); 359#L565-2 assume !(main_~length2~0 < 1); 357#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;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);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 350#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 351#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 367#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 372#L555-1 assume !cstrcspn_#t~short7; 371#L555-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~short7; 370#L555-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 355#L557 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 356#L552-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 352#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 354#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 366#L555-5 [2019-11-20 01:29:20,065 INFO L796 eck$LassoCheckResult]: Loop: 366#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 360#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 361#L555-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 366#L555-5 [2019-11-20 01:29:20,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:20,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1587378397, now seen corresponding path program 1 times [2019-11-20 01:29:20,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:20,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736006639] [2019-11-20 01:29:20,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:20,095 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:20,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:20,096 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 2 times [2019-11-20 01:29:20,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:20,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494307700] [2019-11-20 01:29:20,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:29:20,105 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:29:20,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:29:20,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1999924968, now seen corresponding path program 1 times [2019-11-20 01:29:20,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:29:20,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443200702] [2019-11-20 01:29:20,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:29:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:29:20,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443200702] [2019-11-20 01:29:20,188 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172291315] [2019-11-20 01:29:20,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 01:29:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:29:20,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-20 01:29:20,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:29:20,294 INFO L343 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2019-11-20 01:29:20,294 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 21 [2019-11-20 01:29:20,294 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 01:29:20,299 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 01:29:20,300 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-11-20 01:29:20,300 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:36, output treesize:21 [2019-11-20 01:29:57,645 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-20 01:30:23,126 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 15 [2019-11-20 01:30:38,203 WARN L191 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-11-20 01:30:38,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 01:30:38,216 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:30:38,217 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 01:30:38,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-11-20 01:30:38,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652471527] [2019-11-20 01:30:38,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:30:38,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 01:30:38,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=116, Unknown=7, NotChecked=0, Total=156 [2019-11-20 01:30:38,361 INFO L87 Difference]: Start difference. First operand 24 states and 33 transitions. cyclomatic complexity: 12 Second operand 13 states. [2019-11-20 01:30:40,260 WARN L191 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2019-11-20 01:30:44,521 WARN L191 SmtUtils]: Spent 4.24 s on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2019-11-20 01:30:47,209 WARN L191 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2019-11-20 01:30:47,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:30:47,270 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-11-20 01:30:47,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 01:30:47,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 72 transitions. [2019-11-20 01:30:47,272 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 01:30:47,274 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 43 states and 53 transitions. [2019-11-20 01:30:47,274 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2019-11-20 01:30:47,274 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2019-11-20 01:30:47,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2019-11-20 01:30:47,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 01:30:47,274 INFO L688 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2019-11-20 01:30:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2019-11-20 01:30:47,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2019-11-20 01:30:47,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 01:30:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2019-11-20 01:30:47,277 INFO L711 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-11-20 01:30:47,277 INFO L591 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2019-11-20 01:30:47,277 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 01:30:47,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2019-11-20 01:30:47,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 01:30:47,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 01:30:47,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 01:30:47,278 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:30:47,278 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 01:30:47,278 INFO L794 eck$LassoCheckResult]: Stem: 526#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 525#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~malloc12.base, main_#t~malloc12.offset, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~ret14, 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~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11; 519#L565 assume !(main_~length1~0 < 1); 520#L565-2 assume !(main_~length2~0 < 1); 518#L568-1 call main_#t~malloc12.base, main_#t~malloc12.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc12.base, main_#t~malloc12.offset;call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;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);cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset, cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcspn_#res;havoc cstrcspn_#t~mem4, cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset, cstrcspn_#t~mem5, cstrcspn_#t~mem6, cstrcspn_#t~short7, cstrcspn_#t~mem9, cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset, cstrcspn_#t~mem3, cstrcspn_~s1.base, cstrcspn_~s1.offset, cstrcspn_~s2.base, cstrcspn_~s2.offset, cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, cstrcspn_~s~0.base, cstrcspn_~s~0.offset, cstrcspn_~c~0;cstrcspn_~s1.base, cstrcspn_~s1.offset := cstrcspn_#in~s1.base, cstrcspn_#in~s1.offset;cstrcspn_~s2.base, cstrcspn_~s2.offset := cstrcspn_#in~s2.base, cstrcspn_#in~s2.offset;havoc cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;havoc cstrcspn_~s~0.base, cstrcspn_~s~0.offset;havoc cstrcspn_~c~0;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_~s1.base, cstrcspn_~s1.offset; 511#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 512#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 530#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 523#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 524#L555-3 assume !cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~short7; 533#L555-6 call cstrcspn_#t~mem9 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1); 516#L557 assume !(cstrcspn_#t~mem9 == cstrcspn_~c~0);havoc cstrcspn_#t~mem9; 517#L552-3 cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset := cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset;cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset := cstrcspn_#t~post2.base, 1 + cstrcspn_#t~post2.offset;havoc cstrcspn_#t~post2.base, cstrcspn_#t~post2.offset; 513#L552-4 call cstrcspn_#t~mem3 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1); 515#L552-1 assume !!(0 != cstrcspn_#t~mem3);havoc cstrcspn_#t~mem3;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_~s2.base, cstrcspn_~s2.offset;call cstrcspn_#t~mem4 := read~int(cstrcspn_~sc1~0.base, cstrcspn_~sc1~0.offset, 1);cstrcspn_~c~0 := cstrcspn_#t~mem4;havoc cstrcspn_#t~mem4; 527#L555-5 [2019-11-20 01:30:47,278 INFO L796 eck$LassoCheckResult]: Loop: 527#L555-5 call cstrcspn_#t~mem5 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := 0 != cstrcspn_#t~mem5; 521#L555-1 assume cstrcspn_#t~short7;call cstrcspn_#t~mem6 := read~int(cstrcspn_~s~0.base, cstrcspn_~s~0.offset, 1);cstrcspn_#t~short7 := cstrcspn_#t~mem6 != (if cstrcspn_~c~0 % 256 <= 127 then cstrcspn_~c~0 % 256 else cstrcspn_~c~0 % 256 - 256); 522#L555-3 assume !!cstrcspn_#t~short7;havoc cstrcspn_#t~mem6;havoc cstrcspn_#t~mem5;havoc cstrcspn_#t~short7;cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset := cstrcspn_~s~0.base, cstrcspn_~s~0.offset;cstrcspn_~s~0.base, cstrcspn_~s~0.offset := cstrcspn_#t~post8.base, 1 + cstrcspn_#t~post8.offset;havoc cstrcspn_#t~post8.base, cstrcspn_#t~post8.offset; 527#L555-5 [2019-11-20 01:30:47,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:47,279 INFO L82 PathProgramCache]: Analyzing trace with hash -187628965, now seen corresponding path program 2 times [2019-11-20 01:30:47,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:47,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794172244] [2019-11-20 01:30:47,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:30:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:30:47,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:30:47,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:47,350 INFO L82 PathProgramCache]: Analyzing trace with hash 58692, now seen corresponding path program 3 times [2019-11-20 01:30:47,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:47,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459360249] [2019-11-20 01:30:47,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:47,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:30:47,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:30:47,370 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:30:47,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:47,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1902015318, now seen corresponding path program 1 times [2019-11-20 01:30:47,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:30:47,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165663797] [2019-11-20 01:30:47,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:30:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:30:47,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:30:47,412 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:30:48,098 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 134 [2019-11-20 01:30:48,934 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2019-11-20 01:30:48,936 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 01:30:48,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 01:30:48,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 01:30:48,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 01:30:48,937 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 01:30:48,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:30:48,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 01:30:48,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 01:30:48,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcspn-alloca-2.i_Iteration5_Lasso [2019-11-20 01:30:48,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 01:30:48,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 01:30:48,943 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 01:30:48,954 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 01:30:48,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:48,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:48,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:48,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:48,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:48,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:48,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:49,123 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-20 01:30:49,811 WARN L191 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-11-20 01:30:49,922 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 01:30:49,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:49,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:49,928 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 01:30:49,930 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 01:30:49,934 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 01:30:49,936 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 01:30:49,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 01:30:49,939 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 01:30:49,941 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 01:30:49,942 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 01:30:49,944 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 01:30:50,989 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-11-20 01:30:51,138 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-11-20 01:30:51,158 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 01:30:51,158 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:30:51,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:30:51,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:30:51,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:30:51,171 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,175 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 01:30:51,176 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:30:51,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,177 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:30:51,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:30:51,178 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:30:51,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,187 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:30:51,187 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:30:51,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:30:51,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:30:51,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:30:51,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:30:51,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:30:51,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:30:51,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,202 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:30:51,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:30:51,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,207 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:30:51,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:30:51,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,208 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:30:51,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:30:51,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:30:51,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:30:51,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:30:51,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:30:51,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 01:30:51,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 01:30:51,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 01:30:51,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 01:30:51,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 01:30:51,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 01:30:51,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 01:30:51,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 01:30:51,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 01:30:51,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 01:30:51,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 01:30:51,245 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 01:30:51,257 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 01:30:51,279 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-20 01:30:51,279 INFO L444 ModelExtractionUtils]: 23 out of 46 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_febf4ab3-0b8c-4d40-bbb5-245c9f3d2124/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 01:30:51,282 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 01:30:51,283 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 01:30:51,284 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 01:30:51,284 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3, ULTIMATE.start_cstrcspn_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_3 - 1*ULTIMATE.start_cstrcspn_~s~0.offset Supporting invariants [] [2019-11-20 01:30:51,364 INFO L297 tatePredicateManager]: 25 out of 26 supporting invariants were superfluous and have been removed [2019-11-20 01:30:51,365 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 01:30:51,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:51,411 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 01:30:51,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:30:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:51,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 01:30:51,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:30:51,462 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 01:30:51,462 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 01:30:51,462 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-20 01:30:51,502 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 46 states and 58 transitions. Complement of second has 6 states. [2019-11-20 01:30:51,503 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 01:30:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 01:30:51,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-20 01:30:51,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-20 01:30:51,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:30:51,504 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 01:30:51,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:51,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 01:30:51,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:30:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:51,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 01:30:51,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:30:51,607 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 01:30:51,607 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 01:30:51,607 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-20 01:30:51,652 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 46 states and 58 transitions. Complement of second has 6 states. [2019-11-20 01:30:51,653 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 01:30:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 01:30:51,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-11-20 01:30:51,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-20 01:30:51,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:30:51,654 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 01:30:51,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:30:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:51,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 01:30:51,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:30:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:30:51,714 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 01:30:51,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:30:51,725 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 01:30:51,726 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2019-11-20 01:30:51,726 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-20 01:30:51,762 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 45 states and 60 transitions. Complement of second has 5 states. [2019-11-20 01:30:51,764 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 01:30:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 01:30:51,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-11-20 01:30:51,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 3 letters. [2019-11-20 01:30:51,765 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:30:51,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 18 letters. Loop has 3 letters. [2019-11-20 01:30:51,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:30:51,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 15 letters. Loop has 6 letters. [2019-11-20 01:30:51,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 01:30:51,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2019-11-20 01:30:51,768 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:30:51,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 0 states and 0 transitions. [2019-11-20 01:30:51,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 01:30:51,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 01:30:51,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 01:30:51,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 01:30:51,769 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:30:51,769 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:30:51,770 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:30:51,770 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 01:30:51,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:30:51,770 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 01:30:51,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 01:30:51,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 01:30:51 BoogieIcfgContainer [2019-11-20 01:30:51,775 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 01:30:51,776 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:30:51,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:30:51,776 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:30:51,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:29:13" (3/4) ... [2019-11-20 01:30:51,779 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:30:51,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:30:51,781 INFO L168 Benchmark]: Toolchain (without parser) took 99380.74 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 265.3 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -126.5 MB). Peak memory consumption was 138.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:51,781 INFO L168 Benchmark]: CDTParser took 0.61 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 01:30:51,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:51,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.86 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 01:30:51,782 INFO L168 Benchmark]: Boogie Preprocessor took 27.20 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 01:30:51,783 INFO L168 Benchmark]: RCFGBuilder took 398.10 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:51,783 INFO L168 Benchmark]: BuchiAutomizer took 98411.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 123.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 156.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:30:51,783 INFO L168 Benchmark]: Witness Printer took 3.77 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:30:51,786 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 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 495.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.86 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 27.20 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 398.10 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 98411.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 123.2 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 156.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.77 ms. Allocated memory is still 1.3 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * sc1 and consists of 3 locations. One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[s] and consists of 3 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * s and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 13 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 98.3s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 88.6s. Construction of modules took 0.1s. Büchi inclusion checks took 9.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 103 SDtfs, 164 SDslu, 93 SDs, 0 SdLazy, 151 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital368 mio100 ax105 hnf99 lsp87 ukn71 mio100 lsp30 div135 bol100 ite100 ukn100 eq161 hnf77 smp91 dnf1089 smp24 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 178ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 108 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...