./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 170d05f666fe960395aa4fb943b7fdfa4284d519 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:00:44,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:00:44,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:00:44,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:00:44,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:00:44,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:00:44,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:00:44,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:00:44,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:00:44,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:00:44,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:00:44,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:00:44,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:00:44,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:00:44,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:00:44,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:00:44,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:00:44,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:00:44,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:00:44,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:00:44,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:00:44,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:00:44,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:00:44,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:00:44,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:00:44,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:00:44,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:00:44,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:00:44,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:00:44,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:00:44,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:00:44,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:00:44,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:00:44,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:00:44,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:00:44,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:00:44,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:00:44,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:00:44,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:00:44,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:00:44,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:00:44,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 06:00:44,574 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:00:44,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:00:44,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:00:44,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:00:44,576 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 06:00:44,576 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 06:00:44,576 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 06:00:44,576 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 06:00:44,577 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 06:00:44,577 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 06:00:44,577 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 06:00:44,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:00:44,578 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 06:00:44,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 06:00:44,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:00:44,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 06:00:44,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:00:44,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 06:00:44,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 06:00:44,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 06:00:44,579 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 06:00:44,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:00:44,580 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 06:00:44,580 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:00:44,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 06:00:44,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:00:44,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 06:00:44,581 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 06:00:44,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:00:44,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 06:00:44,582 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 06:00:44,583 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 06:00:44,583 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_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 170d05f666fe960395aa4fb943b7fdfa4284d519 [2019-11-20 06:00:44,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:00:44,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:00:44,837 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:00:44,838 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:00:44,839 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:00:44,839 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i [2019-11-20 06:00:44,910 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/data/17dc2d4ae/98aaec26847e41959dcdf5aaf2ce521b/FLAGbaf20b05b [2019-11-20 06:00:45,512 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:00:45,513 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/sv-benchmarks/c/array-memsafety/cstrncat-alloca-2.i [2019-11-20 06:00:45,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/data/17dc2d4ae/98aaec26847e41959dcdf5aaf2ce521b/FLAGbaf20b05b [2019-11-20 06:00:45,762 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/data/17dc2d4ae/98aaec26847e41959dcdf5aaf2ce521b [2019-11-20 06:00:45,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:00:45,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:00:45,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:00:45,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:00:45,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:00:45,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:45" (1/1) ... [2019-11-20 06:00:45,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31504cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:45, skipping insertion in model container [2019-11-20 06:00:45,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:00:45" (1/1) ... [2019-11-20 06:00:45,788 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:00:45,848 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:00:46,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:00:46,386 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:00:46,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:00:46,497 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:00:46,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46 WrapperNode [2019-11-20 06:00:46,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:00:46,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:00:46,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:00:46,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:00:46,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:00:46,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:00:46,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:00:46,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:00:46,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... [2019-11-20 06:00:46,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:00:46,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:00:46,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:00:46,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:00:46,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 06:00:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 06:00:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 06:00:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 06:00:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:00:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:00:47,248 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:00:47,249 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 06:00:47,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:47 BoogieIcfgContainer [2019-11-20 06:00:47,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:00:47,251 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 06:00:47,251 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 06:00:47,256 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 06:00:47,258 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 06:00:47,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:00:45" (1/3) ... [2019-11-20 06:00:47,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c2f0512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:00:47, skipping insertion in model container [2019-11-20 06:00:47,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 06:00:47,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:00:46" (2/3) ... [2019-11-20 06:00:47,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c2f0512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:00:47, skipping insertion in model container [2019-11-20 06:00:47,261 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 06:00:47,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:47" (3/3) ... [2019-11-20 06:00:47,263 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrncat-alloca-2.i [2019-11-20 06:00:47,317 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 06:00:47,317 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 06:00:47,317 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 06:00:47,317 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 06:00:47,318 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 06:00:47,318 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 06:00:47,318 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 06:00:47,318 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 06:00:47,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-11-20 06:00:47,361 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2019-11-20 06:00:47,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:47,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:47,369 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 06:00:47,369 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:47,369 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 06:00:47,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states. [2019-11-20 06:00:47,372 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 9 [2019-11-20 06:00:47,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:47,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:47,373 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 06:00:47,373 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:47,383 INFO L794 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 15#L-1true havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 19#L531true assume !(main_~length1~0 < 1); 24#L531-2true assume !(main_~length2~0 < 1); 14#L534-1true assume !(main_~n~0 < 1); 6#L537-1true assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 20#L544-3true [2019-11-20 06:00:47,383 INFO L796 eck$LassoCheckResult]: Loop: 20#L544-3true assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 17#L544-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 20#L544-3true [2019-11-20 06:00:47,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:47,390 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-11-20 06:00:47,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:47,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780291150] [2019-11-20 06:00:47,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:47,565 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:47,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:47,567 INFO L82 PathProgramCache]: Analyzing trace with hash 2019, now seen corresponding path program 1 times [2019-11-20 06:00:47,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:47,567 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995016651] [2019-11-20 06:00:47,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:47,600 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:47,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:47,601 INFO L82 PathProgramCache]: Analyzing trace with hash 180553841, now seen corresponding path program 1 times [2019-11-20 06:00:47,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:47,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695056468] [2019-11-20 06:00:47,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:47,657 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:48,069 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-11-20 06:00:48,214 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-20 06:00:48,226 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 06:00:48,227 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 06:00:48,227 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 06:00:48,227 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 06:00:48,227 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 06:00:48,228 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:48,228 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 06:00:48,228 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 06:00:48,228 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration1_Lasso [2019-11-20 06:00:48,228 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 06:00:48,228 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 06:00:48,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:48,265 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 06:00:48,270 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 06:00:48,276 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 06:00:48,474 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-11-20 06:00:48,513 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 06:00:48,519 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 06:00:48,522 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 06:00:48,529 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 06:00:48,537 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 06:00:48,542 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 06:00:48,545 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 06:00:48,549 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 06:00:48,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:48,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:48,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:48,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:48,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:49,113 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 06:00:49,119 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:49,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:49,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:49,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:49,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:49,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:49,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:49,175 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 06:00:49,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:49,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:49,181 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:49,181 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 06:00:49,185 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:49,207 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 06:00:49,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:49,219 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:49,219 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 06:00:49,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:49,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:49,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:49,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:49,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:49,269 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:49,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:49,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:49,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:49,301 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:49,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:49,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:49,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,330 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,330 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,330 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:49,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:49,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:49,349 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:49,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:49,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:49,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:49,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:49,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:49,377 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:49,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:49,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:49,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:49,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:49,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:49,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:49,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:49,442 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 06:00:49,569 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2019-11-20 06:00:49,569 INFO L444 ModelExtractionUtils]: 14 out of 31 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:49,585 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:49,590 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 06:00:49,590 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 06:00:49,591 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~n~0 >= 0] [2019-11-20 06:00:49,622 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2019-11-20 06:00:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:49,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 06:00:49,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:49,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 06:00:49,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:49,859 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 06:00:49,879 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 06:00:49,880 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states. Second operand 4 states. [2019-11-20 06:00:49,980 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states.. Second operand 4 states. Result 61 states and 89 transitions. Complement of second has 8 states. [2019-11-20 06:00:49,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 06:00:49,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 06:00:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 62 transitions. [2019-11-20 06:00:49,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-20 06:00:49,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:49,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-20 06:00:49,988 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:49,988 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 62 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 06:00:49,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:49,990 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 89 transitions. [2019-11-20 06:00:49,995 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 06:00:50,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 18 states and 26 transitions. [2019-11-20 06:00:50,001 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-20 06:00:50,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2019-11-20 06:00:50,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 26 transitions. [2019-11-20 06:00:50,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:50,003 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-20 06:00:50,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 26 transitions. [2019-11-20 06:00:50,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 06:00:50,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 06:00:50,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 26 transitions. [2019-11-20 06:00:50,036 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-20 06:00:50,036 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 26 transitions. [2019-11-20 06:00:50,036 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 06:00:50,036 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 26 transitions. [2019-11-20 06:00:50,037 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 06:00:50,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:50,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:50,038 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:00:50,039 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:50,039 INFO L794 eck$LassoCheckResult]: Stem: 186#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 182#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 183#L531 assume !(main_~length1~0 < 1); 187#L531-2 assume !(main_~length2~0 < 1); 181#L534-1 assume !(main_~n~0 < 1); 178#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 179#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 188#L544-4 main_~i~1 := 0; 176#L549-3 [2019-11-20 06:00:50,039 INFO L796 eck$LassoCheckResult]: Loop: 176#L549-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 175#L549-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 176#L549-3 [2019-11-20 06:00:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:50,040 INFO L82 PathProgramCache]: Analyzing trace with hash 180553783, now seen corresponding path program 1 times [2019-11-20 06:00:50,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:50,041 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978008030] [2019-11-20 06:00:50,041 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:50,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:50,085 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 1 times [2019-11-20 06:00:50,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:50,085 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065056052] [2019-11-20 06:00:50,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,115 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:50,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:50,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495129, now seen corresponding path program 1 times [2019-11-20 06:00:50,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:50,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747890900] [2019-11-20 06:00:50,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:50,251 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 06:00:50,252 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747890900] [2019-11-20 06:00:50,252 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:00:50,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 06:00:50,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411927383] [2019-11-20 06:00:50,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:00:50,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 06:00:50,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 06:00:50,318 INFO L87 Difference]: Start difference. First operand 18 states and 26 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-20 06:00:50,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:00:50,411 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2019-11-20 06:00:50,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 06:00:50,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. [2019-11-20 06:00:50,414 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 12 [2019-11-20 06:00:50,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 06:00:50,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-11-20 06:00:50,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2019-11-20 06:00:50,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 37 transitions. [2019-11-20 06:00:50,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:50,419 INFO L688 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 06:00:50,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 37 transitions. [2019-11-20 06:00:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2019-11-20 06:00:50,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-20 06:00:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2019-11-20 06:00:50,427 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-20 06:00:50,427 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2019-11-20 06:00:50,428 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 06:00:50,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2019-11-20 06:00:50,429 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2019-11-20 06:00:50,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:50,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:50,431 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:00:50,431 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:50,431 INFO L794 eck$LassoCheckResult]: Stem: 243#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 239#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~length2~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 240#L531 assume !(main_~length1~0 < 1); 244#L531-2 assume !(main_~length2~0 < 1); 238#L534-1 assume !(main_~n~0 < 1); 234#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 235#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 241#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 242#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 246#L544-4 main_~i~1 := 0; 232#L549-3 [2019-11-20 06:00:50,432 INFO L796 eck$LassoCheckResult]: Loop: 232#L549-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 231#L549-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 232#L549-3 [2019-11-20 06:00:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:50,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1713550361, now seen corresponding path program 1 times [2019-11-20 06:00:50,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:50,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92275495] [2019-11-20 06:00:50,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:50,499 INFO L82 PathProgramCache]: Analyzing trace with hash 2467, now seen corresponding path program 2 times [2019-11-20 06:00:50,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:50,500 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950347555] [2019-11-20 06:00:50,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,525 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:50,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:50,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424059, now seen corresponding path program 1 times [2019-11-20 06:00:50,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:50,530 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503290698] [2019-11-20 06:00:50,530 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:50,603 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:51,060 WARN L191 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2019-11-20 06:00:51,183 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-11-20 06:00:51,185 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 06:00:51,186 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 06:00:51,186 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 06:00:51,186 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 06:00:51,186 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 06:00:51,186 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:51,186 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 06:00:51,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 06:00:51,187 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration3_Lasso [2019-11-20 06:00:51,187 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 06:00:51,187 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 06:00:51,191 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 06:00:51,202 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 06:00:51,205 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 06:00:51,209 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 06:00:51,212 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 06:00:51,216 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 06:00:51,219 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 06:00:51,222 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 06:00:51,225 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 06:00:51,227 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 06:00:51,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:51,488 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-11-20 06:00:51,519 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 06:00:51,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:51,528 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 06:00:51,531 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 06:00:51,698 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2019-11-20 06:00:52,035 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 06:00:52,041 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:52,059 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,062 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,066 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:52,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,085 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,092 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:52,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,117 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:52,117 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:52,145 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,147 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,147 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,147 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,147 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,147 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,148 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,150 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:52,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,170 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,175 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:52,175 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:52,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,205 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:52,205 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,211 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:52,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,235 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:52,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:52,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,255 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,255 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,255 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,256 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,256 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:52,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:52,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:52,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:52,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:52,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:52,335 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:52,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:52,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:52,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:52,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:52,357 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:52,358 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:52,381 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 06:00:52,414 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-20 06:00:52,414 INFO L444 ModelExtractionUtils]: 20 out of 34 variables were initially zero. Simplification set additionally 11 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:52,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 06:00:52,428 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 06:00:52,428 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 06:00:52,428 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~1 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-11-20 06:00:52,453 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2019-11-20 06:00:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:52,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 06:00:52,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:52,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 06:00:52,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:52,532 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 06:00:52,533 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 06:00:52,533 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 12 Second operand 3 states. [2019-11-20 06:00:52,561 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 28 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 28 states and 43 transitions. Complement of second has 6 states. [2019-11-20 06:00:52,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 06:00:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 06:00:52,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2019-11-20 06:00:52,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-20 06:00:52,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:52,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-20 06:00:52,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:52,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-20 06:00:52,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:52,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 43 transitions. [2019-11-20 06:00:52,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:52,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 30 transitions. [2019-11-20 06:00:52,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2019-11-20 06:00:52,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-20 06:00:52,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 30 transitions. [2019-11-20 06:00:52,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:52,567 INFO L688 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-11-20 06:00:52,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 30 transitions. [2019-11-20 06:00:52,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-20 06:00:52,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-20 06:00:52,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2019-11-20 06:00:52,571 INFO L711 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-11-20 06:00:52,571 INFO L591 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2019-11-20 06:00:52,572 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 06:00:52,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2019-11-20 06:00:52,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:52,573 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:52,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:52,574 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:00:52,574 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:52,574 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 374#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~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;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 375#L531 assume !(main_~length1~0 < 1); 379#L531-2 assume !(main_~length2~0 < 1); 373#L534-1 assume !(main_~n~0 < 1); 369#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 370#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 380#L544-4 main_~i~1 := 0; 371#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 372#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 365#L517-3 [2019-11-20 06:00:52,575 INFO L796 eck$LassoCheckResult]: Loop: 365#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 363#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 365#L517-3 [2019-11-20 06:00:52,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:52,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1713495071, now seen corresponding path program 1 times [2019-11-20 06:00:52,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:52,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215111270] [2019-11-20 06:00:52,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:52,608 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:52,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:52,609 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 1 times [2019-11-20 06:00:52,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:52,609 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115947208] [2019-11-20 06:00:52,610 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:52,617 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:52,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:52,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1696290724, now seen corresponding path program 1 times [2019-11-20 06:00:52,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:52,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730746987] [2019-11-20 06:00:52,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:52,934 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 30 [2019-11-20 06:00:53,060 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 06:00:53,060 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730746987] [2019-11-20 06:00:53,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:00:53,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 06:00:53,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777073232] [2019-11-20 06:00:53,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:00:53,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:00:53,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:00:53,100 INFO L87 Difference]: Start difference. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand 7 states. [2019-11-20 06:00:53,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:00:53,601 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-11-20 06:00:53,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 06:00:53,603 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2019-11-20 06:00:53,604 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2019-11-20 06:00:53,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 42 transitions. [2019-11-20 06:00:53,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2019-11-20 06:00:53,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2019-11-20 06:00:53,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 42 transitions. [2019-11-20 06:00:53,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:53,606 INFO L688 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2019-11-20 06:00:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 42 transitions. [2019-11-20 06:00:53,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2019-11-20 06:00:53,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-20 06:00:53,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 33 transitions. [2019-11-20 06:00:53,617 INFO L711 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-20 06:00:53,617 INFO L591 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2019-11-20 06:00:53,617 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 06:00:53,617 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 33 transitions. [2019-11-20 06:00:53,618 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:53,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:53,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:53,619 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:00:53,620 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:53,620 INFO L794 eck$LassoCheckResult]: Stem: 452#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 448#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~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;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 449#L531 assume !(main_~length1~0 < 1); 453#L531-2 assume !(main_~length2~0 < 1); 447#L534-1 assume !(main_~n~0 < 1); 440#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 441#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 450#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 451#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 455#L544-4 main_~i~1 := 0; 457#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 444#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 445#L517-3 [2019-11-20 06:00:53,620 INFO L796 eck$LassoCheckResult]: Loop: 445#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 446#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 445#L517-3 [2019-11-20 06:00:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:53,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1749424001, now seen corresponding path program 1 times [2019-11-20 06:00:53,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:53,621 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009363880] [2019-11-20 06:00:53,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:53,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:53,653 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:53,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:53,657 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 2 times [2019-11-20 06:00:53,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:53,658 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771614570] [2019-11-20 06:00:53,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:53,668 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:53,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:53,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1864254086, now seen corresponding path program 1 times [2019-11-20 06:00:53,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:53,669 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678920144] [2019-11-20 06:00:53,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:53,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:53,721 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:54,454 WARN L191 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 114 [2019-11-20 06:00:54,629 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-11-20 06:00:54,633 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 06:00:54,633 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 06:00:54,633 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 06:00:54,633 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 06:00:54,633 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 06:00:54,633 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:54,633 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 06:00:54,634 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 06:00:54,634 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration5_Lasso [2019-11-20 06:00:54,634 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 06:00:54,634 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 06:00:54,639 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 06:00:54,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,656 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 06:00:54,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,663 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 06:00:54,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,667 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 06:00:54,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,677 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 06:00:54,682 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 06:00:54,685 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 06:00:54,687 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 06:00:54,690 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 06:00:54,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:54,698 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 06:00:54,700 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 06:00:54,704 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 06:00:54,707 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 06:00:54,709 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 06:00:54,710 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 06:00:54,714 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 06:00:54,716 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 06:00:54,718 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 06:00:54,980 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-11-20 06:00:55,027 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 06:00:55,030 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 06:00:55,390 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-11-20 06:00:55,667 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 06:00:55,667 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:55,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:55,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:55,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,701 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,703 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,713 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,714 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 06:00:55,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:55,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,727 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,727 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:55,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:55,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,741 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,743 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,743 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:55,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:55,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:55,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,784 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,791 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:55,802 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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) [2019-11-20 06:00:55,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:55,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,859 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,868 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,868 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,868 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,868 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,869 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,878 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,880 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,888 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,896 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,897 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,897 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,913 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,921 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,933 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:55,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:55,953 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,981 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:55,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,983 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/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 06:00:55,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:55,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:55,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:55,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:55,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:55,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:55,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:55,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:55,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:55,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:56,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:56,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:56,002 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,012 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,012 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:56,017 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:56,032 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:56,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:56,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:56,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,116 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,116 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,116 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,124 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:56,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:56,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,139 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 06:00:56,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,140 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 06:00:56,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,143 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:56,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,160 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,160 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,168 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:56,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:56,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:56,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:56,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:56,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:56,199 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:56,224 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 06:00:56,302 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2019-11-20 06:00:56,302 INFO L444 ModelExtractionUtils]: 16 out of 58 variables were initially zero. Simplification set additionally 37 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:56,310 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:56,314 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 06:00:56,315 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 06:00:56,315 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncat_~n, ULTIMATE.start_cstrncat_~s~0.offset) = 3*ULTIMATE.start_cstrncat_~n - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [3*ULTIMATE.start_cstrncat_~n - 1*v_rep(select #length ULTIMATE.start_cstrncat_~s~0.base)_1 >= 0] [2019-11-20 06:00:56,351 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2019-11-20 06:00:56,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:56,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:56,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 06:00:56,430 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:56,480 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_82|], 1=[|v_#valid_114|]} [2019-11-20 06:00:56,491 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-20 06:00:56,504 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2019-11-20 06:00:56,505 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 06:00:56,521 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:00:56,530 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-20 06:00:56,530 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 06:00:56,561 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 06:00:56,562 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 06:00:56,562 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:25, output treesize:13 [2019-11-20 06:00:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:56,655 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 06:00:56,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:56,687 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 06:00:56,687 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2019-11-20 06:00:56,687 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13 Second operand 7 states. [2019-11-20 06:00:56,938 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 33 transitions. cyclomatic complexity: 13. Second operand 7 states. Result 47 states and 66 transitions. Complement of second has 11 states. [2019-11-20 06:00:56,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2019-11-20 06:00:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 06:00:56,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2019-11-20 06:00:56,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 12 letters. Loop has 2 letters. [2019-11-20 06:00:56,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:56,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-20 06:00:56,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:56,940 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 12 letters. Loop has 4 letters. [2019-11-20 06:00:56,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:56,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 66 transitions. [2019-11-20 06:00:56,941 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:56,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 42 states and 58 transitions. [2019-11-20 06:00:56,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2019-11-20 06:00:56,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2019-11-20 06:00:56,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 58 transitions. [2019-11-20 06:00:56,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:56,945 INFO L688 BuchiCegarLoop]: Abstraction has 42 states and 58 transitions. [2019-11-20 06:00:56,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 58 transitions. [2019-11-20 06:00:56,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2019-11-20 06:00:56,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 06:00:56,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2019-11-20 06:00:56,950 INFO L711 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-11-20 06:00:56,950 INFO L591 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2019-11-20 06:00:56,951 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 06:00:56,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 47 transitions. [2019-11-20 06:00:56,951 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:56,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:56,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:56,952 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:00:56,953 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 06:00:56,953 INFO L794 eck$LassoCheckResult]: Stem: 646#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 642#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~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;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 643#L531 assume !(main_~length1~0 < 1); 647#L531-2 assume !(main_~length2~0 < 1); 641#L534-1 assume !(main_~n~0 < 1); 634#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 635#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 649#L544-4 main_~i~1 := 0; 636#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 637#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 660#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 627#L517-1 assume !(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2; 628#L519-4 [2019-11-20 06:00:56,953 INFO L796 eck$LassoCheckResult]: Loop: 628#L519-4 cstrncat_#t~short6 := 0 != cstrncat_~n; 633#L519 assume cstrncat_#t~short6;cstrncat_#t~post4.base, cstrncat_#t~post4.offset := cstrncat_~s2.base, cstrncat_~s2.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#t~post4.base, 1 + cstrncat_#t~post4.offset;call cstrncat_#t~mem5 := read~int(cstrncat_#t~post4.base, cstrncat_#t~post4.offset, 1);call write~int(cstrncat_#t~mem5, cstrncat_~s~0.base, cstrncat_~s~0.offset, 1);cstrncat_#t~short6 := 0 != cstrncat_#t~mem5; 651#L519-2 assume !!cstrncat_#t~short6;havoc cstrncat_#t~post4.base, cstrncat_#t~post4.offset;havoc cstrncat_#t~mem5;havoc cstrncat_#t~short6;cstrncat_#t~post7 := cstrncat_~n;cstrncat_~n := cstrncat_#t~post7 - 1;havoc cstrncat_#t~post7;cstrncat_#t~post8.base, cstrncat_#t~post8.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post8.base, 1 + cstrncat_#t~post8.offset;havoc cstrncat_#t~post8.base, cstrncat_#t~post8.offset; 628#L519-4 [2019-11-20 06:00:56,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:56,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1696290722, now seen corresponding path program 1 times [2019-11-20 06:00:56,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:56,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753243263] [2019-11-20 06:00:56,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,011 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:57,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:57,012 INFO L82 PathProgramCache]: Analyzing trace with hash 99405, now seen corresponding path program 1 times [2019-11-20 06:00:57,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:57,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067664861] [2019-11-20 06:00:57,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:57,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,023 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:57,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:57,024 INFO L82 PathProgramCache]: Analyzing trace with hash -388236020, now seen corresponding path program 1 times [2019-11-20 06:00:57,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:57,025 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430300061] [2019-11-20 06:00:57,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:57,140 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 06:00:57,141 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430300061] [2019-11-20 06:00:57,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 06:00:57,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 06:00:57,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906004450] [2019-11-20 06:00:57,251 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-11-20 06:00:57,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 06:00:57,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 06:00:57,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 06:00:57,288 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. cyclomatic complexity: 19 Second operand 7 states. [2019-11-20 06:00:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 06:00:57,406 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2019-11-20 06:00:57,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 06:00:57,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 50 transitions. [2019-11-20 06:00:57,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:57,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 29 states and 40 transitions. [2019-11-20 06:00:57,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2019-11-20 06:00:57,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2019-11-20 06:00:57,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 40 transitions. [2019-11-20 06:00:57,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:57,409 INFO L688 BuchiCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-11-20 06:00:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 40 transitions. [2019-11-20 06:00:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-20 06:00:57,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 06:00:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2019-11-20 06:00:57,412 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-11-20 06:00:57,412 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 40 transitions. [2019-11-20 06:00:57,412 INFO L424 BuchiCegarLoop]: ======== Iteration 7============ [2019-11-20 06:00:57,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 40 transitions. [2019-11-20 06:00:57,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 06:00:57,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 06:00:57,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 06:00:57,414 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 06:00:57,414 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 06:00:57,414 INFO L794 eck$LassoCheckResult]: Stem: 738#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 734#L-1 havoc main_#res;havoc main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19.base, main_#t~ret19.offset, main_~length1~0, main_~length2~0, main_~n~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;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 735#L531 assume !(main_~length1~0 < 1); 739#L531-2 assume !(main_~length2~0 < 1); 733#L534-1 assume !(main_~n~0 < 1); 728#L537-1 assume !(main_~length1~0 < main_~n~0 || main_~length1~0 - main_~n~0 < main_~length2~0);call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 729#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 736#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 737#L544-3 assume !!(main_~i~0 < main_~length1~0 - main_~n~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 740#L544-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 748#L544-3 assume !(main_~i~0 < main_~length1~0 - main_~n~0 - 1); 747#L544-4 main_~i~1 := 0; 746#L549-3 assume !(main_~i~1 < main_~length2~0 - 1); 743#L549-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - main_~n~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncat_#in~s1.base, cstrncat_#in~s1.offset, cstrncat_#in~s2.base, cstrncat_#in~s2.offset, cstrncat_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~n~0;havoc cstrncat_#res.base, cstrncat_#res.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset, cstrncat_#t~mem2, cstrncat_#t~post7, cstrncat_#t~post8.base, cstrncat_#t~post8.offset, cstrncat_#t~post4.base, cstrncat_#t~post4.offset, cstrncat_#t~mem5, cstrncat_#t~short6, cstrncat_#t~mem9, cstrncat_~s1.base, cstrncat_~s1.offset, cstrncat_~s2.base, cstrncat_~s2.offset, cstrncat_~n, cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s1.base, cstrncat_~s1.offset := cstrncat_#in~s1.base, cstrncat_#in~s1.offset;cstrncat_~s2.base, cstrncat_~s2.offset := cstrncat_#in~s2.base, cstrncat_#in~s2.offset;cstrncat_~n := cstrncat_#in~n;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_~s1.base, cstrncat_~s1.offset; 722#L517-3 [2019-11-20 06:00:57,414 INFO L796 eck$LassoCheckResult]: Loop: 722#L517-3 call cstrncat_#t~mem2 := read~int(cstrncat_~s~0.base, cstrncat_~s~0.offset, 1); 720#L517-1 assume !!(0 != cstrncat_#t~mem2);havoc cstrncat_#t~mem2;cstrncat_#t~post3.base, cstrncat_#t~post3.offset := cstrncat_~s~0.base, cstrncat_~s~0.offset;cstrncat_~s~0.base, cstrncat_~s~0.offset := cstrncat_#t~post3.base, 1 + cstrncat_#t~post3.offset;havoc cstrncat_#t~post3.base, cstrncat_#t~post3.offset; 722#L517-3 [2019-11-20 06:00:57,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:57,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1917387363, now seen corresponding path program 2 times [2019-11-20 06:00:57,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:57,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711618212] [2019-11-20 06:00:57,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,446 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:57,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:57,447 INFO L82 PathProgramCache]: Analyzing trace with hash 2822, now seen corresponding path program 3 times [2019-11-20 06:00:57,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:57,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440392345] [2019-11-20 06:00:57,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,453 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:57,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:57,454 INFO L82 PathProgramCache]: Analyzing trace with hash 68287720, now seen corresponding path program 2 times [2019-11-20 06:00:57,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 06:00:57,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691929527] [2019-11-20 06:00:57,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 06:00:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 06:00:57,484 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 06:00:58,202 WARN L191 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 124 [2019-11-20 06:00:58,368 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-20 06:00:58,371 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 06:00:58,371 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 06:00:58,371 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 06:00:58,371 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 06:00:58,371 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 06:00:58,371 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:58,371 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 06:00:58,371 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 06:00:58,371 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncat-alloca-2.i_Iteration7_Lasso [2019-11-20 06:00:58,371 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 06:00:58,372 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 06:00:58,375 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 06:00:58,378 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 06:00:58,380 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 06:00:58,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,394 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 06:00:58,396 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 06:00:58,398 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 06:00:58,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,404 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 06:00:58,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,408 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 06:00:58,410 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 06:00:58,412 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 06:00:58,414 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 06:00:58,416 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 06:00:58,691 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-11-20 06:00:58,746 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 06:00:58,748 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 06:00:58,750 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 06:00:58,752 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 06:00:58,755 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 06:00:58,757 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 06:00:58,763 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 06:00:58,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:58,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 06:00:59,003 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-11-20 06:00:59,264 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-11-20 06:00:59,298 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 06:00:59,298 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,315 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,315 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,315 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,324 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,327 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:59,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,343 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,343 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,344 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,357 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,357 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,368 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,368 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,371 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:59,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,415 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,425 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,425 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,437 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:59,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,473 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,474 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,487 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,492 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,497 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 06:00:59,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,500 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,500 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,509 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 06:00:59,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,510 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,515 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 06:00:59,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,541 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:59,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,554 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,567 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 06:00:59,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,567 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 06:00:59,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,568 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 06:00:59,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 06:00:59,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,575 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 06:00:59,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,587 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 06:00:59,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,617 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,622 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,631 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,631 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number 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 06:00:59,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 06:00:59,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 06:00:59,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 06:00:59,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 06:00:59,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 06:00:59,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 06:00:59,681 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 06:00:59,733 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2019-11-20 06:00:59,733 INFO L444 ModelExtractionUtils]: 17 out of 58 variables were initially zero. Simplification set additionally 38 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f95644e7-69d4-4509-abc2-45b8fab0af15/bin/uautomizer/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 06:00:59,738 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 06:00:59,740 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 06:00:59,740 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 06:00:59,740 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4, ULTIMATE.start_cstrncat_~s~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_4 - 1*ULTIMATE.start_cstrncat_~s~0.offset Supporting invariants [] [2019-11-20 06:00:59,759 INFO L297 tatePredicateManager]: 6 out of 7 supporting invariants were superfluous and have been removed [2019-11-20 06:00:59,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 06:00:59,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:00:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:59,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 06:00:59,823 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:00:59,851 WARN L253 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 06:00:59,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 06:00:59,866 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 06:00:59,866 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 06:00:59,867 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 40 transitions. cyclomatic complexity: 17 Second operand 4 states. [2019-11-20 06:00:59,909 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 40 transitions. cyclomatic complexity: 17. Second operand 4 states. Result 38 states and 53 transitions. Complement of second has 7 states. [2019-11-20 06:00:59,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 06:00:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 06:00:59,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2019-11-20 06:00:59,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2019-11-20 06:00:59,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:59,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2019-11-20 06:00:59,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:59,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2019-11-20 06:00:59,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 06:00:59,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 53 transitions. [2019-11-20 06:00:59,912 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 06:00:59,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2019-11-20 06:00:59,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 06:00:59,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 06:00:59,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 06:00:59,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 06:00:59,913 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:00:59,913 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:00:59,913 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 06:00:59,913 INFO L424 BuchiCegarLoop]: ======== Iteration 8============ [2019-11-20 06:00:59,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 06:00:59,913 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 06:00:59,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 06:00:59,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:00:59 BoogieIcfgContainer [2019-11-20 06:00:59,919 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 06:00:59,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:00:59,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:00:59,920 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:00:59,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:00:47" (3/4) ... [2019-11-20 06:00:59,925 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 06:00:59,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:00:59,927 INFO L168 Benchmark]: Toolchain (without parser) took 14160.27 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 384.3 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -296.6 MB). Peak memory consumption was 87.7 MB. Max. memory is 11.5 GB. [2019-11-20 06:00:59,927 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:00:59,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2019-11-20 06:00:59,928 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.26 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 06:00:59,928 INFO L168 Benchmark]: Boogie Preprocessor took 32.41 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 06:00:59,929 INFO L168 Benchmark]: RCFGBuilder took 639.92 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-11-20 06:00:59,930 INFO L168 Benchmark]: BuchiAutomizer took 12668.50 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -143.9 MB). Peak memory consumption was 85.2 MB. Max. memory is 11.5 GB. [2019-11-20 06:00:59,930 INFO L168 Benchmark]: Witness Printer took 5.46 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:00:59,932 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 727.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.26 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 32.41 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. * RCFGBuilder took 639.92 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12668.50 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -143.9 MB). Peak memory consumption was 85.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.46 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * i + length2 and consists of 4 locations. One deterministic module has affine ranking function 3 * n + -1 * s and consists of 9 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * s and consists of 5 locations. 3 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.6s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 10.4s. Construction of modules took 0.3s. Büchi inclusion checks took 1.5s. Highest rank in rank-based complementation 3. Minimization of det autom 7. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 22 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 34 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 127 SDtfs, 249 SDslu, 209 SDs, 0 SdLazy, 209 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax110 hnf98 lsp86 ukn74 mio100 lsp58 div100 bol100 ite100 ukn100 eq176 hnf90 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...