./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/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 f10d5178d15d886f7ae857469faf20c98bafd5fa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 16:49:07,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:49:07,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:49:07,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:49:07,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:49:07,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:49:07,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:49:07,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:49:07,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:49:07,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:49:07,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:49:07,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:49:07,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:49:07,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:49:07,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:49:07,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:49:07,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:49:07,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:49:07,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:49:07,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:49:07,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:49:07,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:49:07,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:49:07,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:49:07,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:49:07,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:49:07,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:49:07,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:49:07,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:49:07,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:49:07,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:49:07,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:49:07,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:49:07,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:49:07,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:49:07,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:49:07,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:49:07,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:49:07,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:49:07,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:49:07,857 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:49:07,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 16:49:07,868 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:49:07,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:49:07,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:49:07,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:49:07,869 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:49:07,869 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:49:07,869 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:49:07,869 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:49:07,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:49:07,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:49:07,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:49:07,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:49:07,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:49:07,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:49:07,872 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:49:07,872 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:49:07,872 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:49:07,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:49:07,872 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:49:07,873 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:49:07,873 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_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/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 -> f10d5178d15d886f7ae857469faf20c98bafd5fa [2019-12-07 16:49:07,974 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:49:07,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:49:07,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:49:07,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:49:07,989 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:49:07,989 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-12-07 16:49:08,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/data/94db090ea/8c7bbbd331a64350b3a2ed9801af6d74/FLAG84d5fc052 [2019-12-07 16:49:08,403 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:49:08,404 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2019-12-07 16:49:08,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/data/94db090ea/8c7bbbd331a64350b3a2ed9801af6d74/FLAG84d5fc052 [2019-12-07 16:49:08,422 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/data/94db090ea/8c7bbbd331a64350b3a2ed9801af6d74 [2019-12-07 16:49:08,424 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:49:08,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:49:08,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:49:08,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:49:08,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:49:08,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1968ef2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08, skipping insertion in model container [2019-12-07 16:49:08,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:49:08,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:49:08,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:49:08,659 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:49:08,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:49:08,715 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:49:08,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08 WrapperNode [2019-12-07 16:49:08,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:49:08,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:49:08,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:49:08,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:49:08,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:49:08,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:49:08,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:49:08,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:49:08,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,759 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... [2019-12-07 16:49:08,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:49:08,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:49:08,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:49:08,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:49:08,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:49:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:49:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:49:08,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:49:08,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:49:08,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:49:08,948 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:49:08,948 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 16:49:08,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:49:08 BoogieIcfgContainer [2019-12-07 16:49:08,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:49:08,950 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:49:08,950 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:49:08,952 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:49:08,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:49:08,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:49:08" (1/3) ... [2019-12-07 16:49:08,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@593b28de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:49:08, skipping insertion in model container [2019-12-07 16:49:08,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:49:08,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:49:08" (2/3) ... [2019-12-07 16:49:08,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@593b28de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:49:08, skipping insertion in model container [2019-12-07 16:49:08,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:49:08,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:49:08" (3/3) ... [2019-12-07 16:49:08,954 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca-2.i [2019-12-07 16:49:08,982 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:49:08,982 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:49:08,982 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:49:08,982 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:49:08,982 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:49:08,982 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:49:08,982 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:49:08,982 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:49:08,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 16:49:09,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 16:49:09,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:49:09,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:49:09,009 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 16:49:09,009 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:49:09,009 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:49:09,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2019-12-07 16:49:09,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-12-07 16:49:09,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:49:09,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:49:09,011 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 16:49:09,011 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:49:09,016 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 17#L529true assume !(main_~length~0 < 1); 20#L529-2true assume !(main_~n~0 < 1); 14#L532-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 8#L537-3true [2019-12-07 16:49:09,016 INFO L796 eck$LassoCheckResult]: Loop: 8#L537-3true assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 7#L537-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 8#L537-3true [2019-12-07 16:49:09,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:09,020 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-12-07 16:49:09,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:09,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584611746] [2019-12-07 16:49:09,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:09,110 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:09,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:09,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2019-12-07 16:49:09,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:09,111 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794939324] [2019-12-07 16:49:09,111 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:09,123 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:09,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:09,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2019-12-07 16:49:09,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:09,125 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484730169] [2019-12-07 16:49:09,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:09,149 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:09,284 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:49:09,285 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:49:09,285 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:49:09,285 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:49:09,285 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:49:09,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:49:09,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:49:09,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-2.i_Iteration1_Lasso [2019-12-07 16:49:09,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:49:09,286 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:49:09,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:09,540 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:49:09,545 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,557 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,562 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,566 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 [2019-12-07 16:49:09,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,570 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,587 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,591 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,592 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,593 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,593 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,600 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,616 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,617 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,620 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,652 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,653 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,654 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,654 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,663 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,667 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,674 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,682 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,692 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:09,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,693 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:09,693 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:09,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,698 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 [2019-12-07 16:49:09,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,704 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,716 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:09,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:09,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:09,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:09,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:09,728 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:09,728 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:09,741 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:49:09,766 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 16:49:09,766 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:09,776 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:49:09,781 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 16:49:09,781 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:49:09,782 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1) = -1*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 Supporting invariants [1*ULTIMATE.start_main_~nondetArea~0.offset >= 0] [2019-12-07 16:49:09,795 INFO L297 tatePredicateManager]: 2 out of 4 supporting invariants were superfluous and have been removed [2019-12-07 16:49:09,803 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 16:49:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:09,839 INFO L264 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:49:09,841 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:49:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:09,853 WARN L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 16:49:09,854 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:49:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:49:09,886 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 16:49:09,887 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states. Second operand 3 states. [2019-12-07 16:49:09,956 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states.. Second operand 3 states. Result 39 states and 56 transitions. Complement of second has 8 states. [2019-12-07 16:49:09,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 16:49:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:49:09,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 36 transitions. [2019-12-07 16:49:09,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 16:49:09,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:49:09,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 16:49:09,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:49:09,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 36 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 16:49:09,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:49:09,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 56 transitions. [2019-12-07 16:49:09,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:49:09,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 14 states and 18 transitions. [2019-12-07 16:49:09,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-12-07 16:49:09,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-12-07 16:49:09,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2019-12-07 16:49:09,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:49:09,968 INFO L688 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-12-07 16:49:09,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2019-12-07 16:49:09,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 16:49:09,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:49:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2019-12-07 16:49:09,985 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-12-07 16:49:09,985 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-12-07 16:49:09,985 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:49:09,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2019-12-07 16:49:09,986 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:49:09,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:49:09,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:49:09,986 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:49:09,986 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 16:49:09,987 INFO L794 eck$LassoCheckResult]: Stem: 137#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 135#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 136#L529 assume !(main_~length~0 < 1); 140#L529-2 assume !(main_~n~0 < 1); 138#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 133#L537-3 assume !(main_~i~0 < main_~n~0); 134#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 127#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 128#L518-4 [2019-12-07 16:49:09,987 INFO L796 eck$LassoCheckResult]: Loop: 128#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 130#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 139#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 129#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 128#L518-4 [2019-12-07 16:49:09,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:09,987 INFO L82 PathProgramCache]: Analyzing trace with hash 180430706, now seen corresponding path program 1 times [2019-12-07 16:49:09,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:09,987 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671240580] [2019-12-07 16:49:09,987 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:49:10,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671240580] [2019-12-07 16:49:10,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:49:10,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 16:49:10,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028716464] [2019-12-07 16:49:10,026 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:49:10,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 1 times [2019-12-07 16:49:10,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892016264] [2019-12-07 16:49:10,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,043 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:10,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:49:10,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:49:10,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:49:10,085 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 4 states. [2019-12-07 16:49:10,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:49:10,102 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-07 16:49:10,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:49:10,103 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-12-07 16:49:10,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:49:10,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 18 transitions. [2019-12-07 16:49:10,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-12-07 16:49:10,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-12-07 16:49:10,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 18 transitions. [2019-12-07 16:49:10,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:49:10,104 INFO L688 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2019-12-07 16:49:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 18 transitions. [2019-12-07 16:49:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2019-12-07 16:49:10,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 16:49:10,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 16:49:10,105 INFO L711 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 16:49:10,106 INFO L591 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 16:49:10,106 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:49:10,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2019-12-07 16:49:10,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:49:10,106 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:49:10,106 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:49:10,106 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:49:10,107 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 16:49:10,107 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 171#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 172#L529 assume !(main_~length~0 < 1); 176#L529-2 assume !(main_~n~0 < 1); 174#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 169#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 167#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 168#L537-3 assume !(main_~i~0 < main_~n~0); 170#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 165#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 164#L518-4 [2019-12-07 16:49:10,107 INFO L796 eck$LassoCheckResult]: Loop: 164#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 166#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 175#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 163#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 164#L518-4 [2019-12-07 16:49:10,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1596934864, now seen corresponding path program 1 times [2019-12-07 16:49:10,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029331964] [2019-12-07 16:49:10,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,128 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:10,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,129 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 2 times [2019-12-07 16:49:10,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368327880] [2019-12-07 16:49:10,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,140 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:10,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1308516218, now seen corresponding path program 1 times [2019-12-07 16:49:10,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734504152] [2019-12-07 16:49:10,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:49:10,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734504152] [2019-12-07 16:49:10,218 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668243227] [2019-12-07 16:49:10,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 16:49:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:10,250 INFO L264 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 28 conjunts are in the unsatisfiable core [2019-12-07 16:49:10,252 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:49:10,283 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-12-07 16:49:10,284 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:49:10,289 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:49:10,289 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:49:10,290 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-12-07 16:49:10,356 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 16 treesize of output 10 [2019-12-07 16:49:10,357 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 16:49:10,360 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 16:49:10,360 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 16:49:10,360 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:7 [2019-12-07 16:49:10,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:49:10,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 16:49:10,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-12-07 16:49:10,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767602649] [2019-12-07 16:49:10,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:49:10,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-12-07 16:49:10,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-12-07 16:49:10,412 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 14 states. [2019-12-07 16:49:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:49:10,630 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-12-07 16:49:10,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 16:49:10,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 32 transitions. [2019-12-07 16:49:10,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:49:10,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 17 states and 19 transitions. [2019-12-07 16:49:10,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-12-07 16:49:10,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2019-12-07 16:49:10,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2019-12-07 16:49:10,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:49:10,632 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-12-07 16:49:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2019-12-07 16:49:10,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 16:49:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 16:49:10,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-12-07 16:49:10,634 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 16:49:10,634 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-12-07 16:49:10,634 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:49:10,634 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 18 transitions. [2019-12-07 16:49:10,634 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:49:10,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:49:10,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:49:10,635 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:49:10,635 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-12-07 16:49:10,635 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 288#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 289#L529 assume !(main_~length~0 < 1); 293#L529-2 assume !(main_~n~0 < 1); 291#L532-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 285#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 283#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 284#L537-3 assume !!(main_~i~0 < main_~n~0);call write~int(main_#t~nondet10, main_~nondetArea~0.base, main_~nondetArea~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 286#L537-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 294#L537-3 assume !(main_~i~0 < main_~n~0); 287#L537-4 cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 279#L516 assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 280#L518-4 [2019-12-07 16:49:10,635 INFO L796 eck$LassoCheckResult]: Loop: 280#L518-4 cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 282#L519 assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 292#L518-1 cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 281#L518-2 assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 280#L518-4 [2019-12-07 16:49:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1352797870, now seen corresponding path program 2 times [2019-12-07 16:49:10,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780669722] [2019-12-07 16:49:10,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,658 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:10,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,659 INFO L82 PathProgramCache]: Analyzing trace with hash 2036779, now seen corresponding path program 3 times [2019-12-07 16:49:10,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572302353] [2019-12-07 16:49:10,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,672 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:10,672 INFO L82 PathProgramCache]: Analyzing trace with hash -24116136, now seen corresponding path program 2 times [2019-12-07 16:49:10,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:49:10,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52246706] [2019-12-07 16:49:10,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:49:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:49:10,707 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:49:10,938 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-12-07 16:49:10,993 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:49:10,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:49:10,993 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:49:10,993 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:49:10,993 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:49:10,993 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:10,993 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:49:10,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:49:10,994 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-2.i_Iteration4_Lasso [2019-12-07 16:49:10,994 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:49:10,994 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:49:10,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:10,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:49:11,434 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:49:11,434 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,438 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,439 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,445 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,446 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,446 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:11,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:11,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,461 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,462 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,473 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 [2019-12-07 16:49:11,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,475 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:11,475 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:11,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,482 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,484 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,487 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 [2019-12-07 16:49:11,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,489 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,489 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,491 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,495 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,502 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,502 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,502 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,507 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:11,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:11,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,516 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,525 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,533 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,537 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:11,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:11,541 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:49:11,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,556 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:49:11,556 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:49:11,558 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,562 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:49:11,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:49:11,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:49:11,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:49:11,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:49:11,571 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:49:11,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:49:11,586 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:49:11,608 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2019-12-07 16:49:11,609 INFO L444 ModelExtractionUtils]: 24 out of 37 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9529d6b6-e98d-4b87-be3d-8a4d698ad91f/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:49:11,612 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:49:11,614 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 16:49:11,614 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:49:11,614 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2, ULTIMATE.start_cmemchr_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2 - 1*ULTIMATE.start_cmemchr_~p~0.offset Supporting invariants [] [2019-12-07 16:49:11,621 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-12-07 16:49:11,623 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 16:49:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:49:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:11,645 INFO L264 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 16:49:11,646 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:49:11,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:49:11,664 INFO L264 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 16:49:11,664 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:49:11,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:49:11,677 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-12-07 16:49:11,677 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4 Second operand 5 states. [2019-12-07 16:49:11,706 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 18 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 20 states and 22 transitions. Complement of second has 6 states. [2019-12-07 16:49:11,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:49:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 16:49:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2019-12-07 16:49:11,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2019-12-07 16:49:11,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:49:11,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2019-12-07 16:49:11,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:49:11,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2019-12-07 16:49:11,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:49:11,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2019-12-07 16:49:11,708 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:49:11,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-12-07 16:49:11,709 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 16:49:11,709 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 16:49:11,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 16:49:11,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 16:49:11,709 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:49:11,709 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:49:11,709 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 16:49:11,709 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 16:49:11,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 16:49:11,709 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 16:49:11,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 16:49:11,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:49:11 BoogieIcfgContainer [2019-12-07 16:49:11,713 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:49:11,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:49:11,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:49:11,714 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:49:11,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:49:08" (3/4) ... [2019-12-07 16:49:11,717 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:49:11,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:49:11,718 INFO L168 Benchmark]: Toolchain (without parser) took 3293.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 942.0 MB in the beginning and 963.5 MB in the end (delta: -21.5 MB). Peak memory consumption was 133.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:49:11,719 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:49:11,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 16:49:11,720 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:49:11,720 INFO L168 Benchmark]: Boogie Preprocessor took 17.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:49:11,720 INFO L168 Benchmark]: RCFGBuilder took 186.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:49:11,721 INFO L168 Benchmark]: BuchiAutomizer took 2763.85 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 963.5 MB in the end (delta: 102.8 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:49:11,721 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 963.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:49:11,723 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 960.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 290.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -149.5 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 186.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2763.85 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 49.8 MB). Free memory was 1.1 GB in the beginning and 963.5 MB in the end (delta: 102.8 MB). Peak memory consumption was 152.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 963.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * p and consists of 5 locations. 2 modules have a trivial ranking function, the largest among these consists of 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 16 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 45 SDtfs, 94 SDslu, 106 SDs, 0 SdLazy, 130 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital126 mio100 ax115 hnf98 lsp80 ukn84 mio100 lsp58 div127 bol100 ite100 ukn100 eq173 hnf81 smp97 dnf100 smp100 tf100 neg99 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms 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...