./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:25:31,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:25:31,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:25:31,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:25:31,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:25:31,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:25:31,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:25:31,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:25:31,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:25:31,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:25:31,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:25:31,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:25:31,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:25:31,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:25:31,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:25:31,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:25:31,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:25:31,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:25:31,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:25:31,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:25:31,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:25:31,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:25:31,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:25:31,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:25:31,887 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:25:31,888 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:25:31,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:25:31,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:25:31,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:25:31,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:25:31,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:25:31,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:25:31,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:25:31,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:25:31,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:25:31,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:25:31,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:25:31,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:25:31,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:25:31,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:25:31,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:25:31,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:25:31,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:25:31,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:25:31,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:25:31,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:25:31,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:25:31,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:25:31,942 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:25:31,943 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:25:31,943 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:25:31,943 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:25:31,943 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:25:31,944 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:25:31,944 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:25:31,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:25:31,945 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:25:31,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:25:31,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:25:31,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:25:31,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:25:31,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:25:31,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:25:31,947 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:25:31,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:25:31,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:25:31,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:25:31,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:25:31,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:25:31,948 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:25:31,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:25:31,950 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:25:31,951 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e6a17b7d4143542ba439290f9741c160a8cb32cc90a0cc2a238a67702990ba0 [2021-10-28 23:25:32,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:25:32,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:25:32,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:25:32,319 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:25:32,320 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:25:32,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-10-28 23:25:32,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/data/01a86acc2/83a0e10a6ef841d1b5b7e67bdb28027a/FLAG26d00b7b9 [2021-10-28 23:25:33,018 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:25:33,019 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/sv-benchmarks/c/termination-crafted/4BitCounterPointer.c [2021-10-28 23:25:33,027 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/data/01a86acc2/83a0e10a6ef841d1b5b7e67bdb28027a/FLAG26d00b7b9 [2021-10-28 23:25:33,407 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/data/01a86acc2/83a0e10a6ef841d1b5b7e67bdb28027a [2021-10-28 23:25:33,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:25:33,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:25:33,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:33,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:25:33,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:25:33,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa83261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33, skipping insertion in model container [2021-10-28 23:25:33,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:25:33,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:25:33,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:33,782 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:25:33,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:25:33,826 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:25:33,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33 WrapperNode [2021-10-28 23:25:33,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:25:33,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:33,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:25:33,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:25:33,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:25:33,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:25:33,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:25:33,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:25:33,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:25:33,929 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:25:33,929 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:25:33,929 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:25:33,930 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (1/1) ... [2021-10-28 23:25:33,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:33,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:33,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:33,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:25:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:25:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:25:34,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:25:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:25:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:25:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:25:34,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:25:34,448 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:25:34,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:34 BoogieIcfgContainer [2021-10-28 23:25:34,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:25:34,452 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:25:34,452 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:25:34,470 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:25:34,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:34,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:25:33" (1/3) ... [2021-10-28 23:25:34,473 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5680bdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:34, skipping insertion in model container [2021-10-28 23:25:34,473 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:34,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:25:33" (2/3) ... [2021-10-28 23:25:34,474 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5680bdaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:25:34, skipping insertion in model container [2021-10-28 23:25:34,474 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:25:34,474 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:34" (3/3) ... [2021-10-28 23:25:34,476 INFO L389 chiAutomizerObserver]: Analyzing ICFG 4BitCounterPointer.c [2021-10-28 23:25:34,581 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:25:34,581 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:25:34,581 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:25:34,582 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:25:34,582 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:25:34,582 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:25:34,583 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:25:34,583 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:25:34,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:34,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:25:34,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:34,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:34,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:25:34,653 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:25:34,653 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:25:34,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:34,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:25:34,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:34,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:34,657 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:25:34,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:25:34,677 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 6#L24-2true [2021-10-28 23:25:34,678 INFO L793 eck$LassoCheckResult]: Loop: 6#L24-2true call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 9#L15-1true assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 3#L16true assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 6#L24-2true [2021-10-28 23:25:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:34,697 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-28 23:25:34,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:34,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759351616] [2021-10-28 23:25:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:34,715 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:34,947 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:35,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-10-28 23:25:35,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:35,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501575389] [2021-10-28 23:25:35,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:35,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:35,085 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:35,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:35,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:35,100 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-10-28 23:25:35,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:35,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073496815] [2021-10-28 23:25:35,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:35,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:35,160 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:35,243 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:37,594 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:37,595 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:37,595 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:37,596 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:37,596 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:25:37,597 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:37,603 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:37,603 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:37,604 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration1_Lasso [2021-10-28 23:25:37,604 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:37,604 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:37,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:37,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:38,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:38,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:39,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:39,251 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:25:39,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:25:39,262 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:39,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:39,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:39,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,317 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:25:39,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,370 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,427 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:25:39,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,500 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:25:39,502 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:39,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:39,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:39,515 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,555 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:25:39,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,572 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 23:25:39,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,617 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:25:39,619 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 23:25:39,683 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,684 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:25:39,687 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,697 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:25:39,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,698 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:25:39,699 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:25:39,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,735 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:25:39,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,770 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,837 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:25:39,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:39,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:39,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:39,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:39,932 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:39,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:25:39,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:39,946 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:39,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:39,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:39,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:39,951 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:39,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:39,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,028 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:25:40,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,116 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:25:40,118 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,139 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,184 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,186 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:25:40,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,281 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:25:40,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,308 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,367 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:25:40,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-28 23:25:40,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,431 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:25:40,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,446 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,446 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,470 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,514 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:25:40,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,539 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,539 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,600 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,603 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:25:40,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,689 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,742 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,742 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:25:40,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:40,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:40,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,821 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:40,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:40,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:40,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:40,844 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:40,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:40,848 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:40,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:25:40,869 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:25:40,903 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:25:40,903 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-28 23:25:40,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:40,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:40,915 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:40,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:25:40,946 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:25:40,972 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:25:40,973 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:25:40,973 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x0~0.base) ULTIMATE.start_main_~x0~0.offset)_1 + 1 Supporting invariants [] [2021-10-28 23:25:41,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:41,269 INFO L297 tatePredicateManager]: 40 out of 40 supporting invariants were superfluous and have been removed [2021-10-28 23:25:41,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:41,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:25:41,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:41,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:25:41,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:41,441 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 [2021-10-28 23:25:41,446 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:41,504 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 8 states. [2021-10-28 23:25:41,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:25:41,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:41,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-28 23:25:41,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2021-10-28 23:25:41,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:41,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 23:25:41,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:41,512 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2021-10-28 23:25:41,512 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:41,513 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2021-10-28 23:25:41,516 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:25:41,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 13 states and 18 transitions. [2021-10-28 23:25:41,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-10-28 23:25:41,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:25:41,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-10-28 23:25:41,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:41,524 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 23:25:41,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-10-28 23:25:41,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-28 23:25:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:41,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2021-10-28 23:25:41,556 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 23:25:41,556 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-28 23:25:41,556 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:25:41,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2021-10-28 23:25:41,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:25:41,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:41,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:41,559 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:41,559 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:25:41,559 INFO L791 eck$LassoCheckResult]: Stem: 247#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 248#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 253#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 252#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 243#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-10-28 23:25:41,560 INFO L793 eck$LassoCheckResult]: Loop: 244#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 249#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 250#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 255#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 244#L20 [2021-10-28 23:25:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:41,560 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2021-10-28 23:25:41,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:41,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595505727] [2021-10-28 23:25:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:41,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:41,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:41,675 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595505727] [2021-10-28 23:25:41,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595505727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:41,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:41,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:25:41,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67610148] [2021-10-28 23:25:41,680 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:25:41,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:41,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 1 times [2021-10-28 23:25:41,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:41,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162747117] [2021-10-28 23:25:41,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:41,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:41,690 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:41,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:41,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:41,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:25:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:25:41,895 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:41,959 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-10-28 23:25:41,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:25:41,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-10-28 23:25:41,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:25:41,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 19 transitions. [2021-10-28 23:25:41,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:25:41,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:25:41,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2021-10-28 23:25:41,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:41,969 INFO L681 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-10-28 23:25:41,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2021-10-28 23:25:41,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-10-28 23:25:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-10-28 23:25:41,974 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 23:25:41,974 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-10-28 23:25:41,975 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:25:41,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-10-28 23:25:41,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 23:25:41,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:41,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:41,980 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:25:41,980 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:25:41,981 INFO L791 eck$LassoCheckResult]: Stem: 286#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 287#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 288#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 289#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 284#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 285#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 290#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 282#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-10-28 23:25:41,981 INFO L793 eck$LassoCheckResult]: Loop: 283#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 291#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 293#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 294#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 283#L20 [2021-10-28 23:25:41,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 1 times [2021-10-28 23:25:41,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:41,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413561810] [2021-10-28 23:25:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:41,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:42,051 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:42,103 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:42,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:42,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1526457, now seen corresponding path program 2 times [2021-10-28 23:25:42,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:42,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547288758] [2021-10-28 23:25:42,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:42,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:42,119 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:42,138 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:42,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1467212285, now seen corresponding path program 1 times [2021-10-28 23:25:42,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:42,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286882124] [2021-10-28 23:25:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:42,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:42,272 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:42,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:42,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286882124] [2021-10-28 23:25:42,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286882124] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:25:42,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8442647] [2021-10-28 23:25:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:42,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:25:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:42,293 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:25:42,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-28 23:25:42,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:42,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:25:42,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:42,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-28 23:25:42,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 23:25:42,588 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 23:25:42,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 31 [2021-10-28 23:25:42,763 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 23:25:42,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 14 [2021-10-28 23:25:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:25:42,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8442647] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:25:42,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:25:42,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2021-10-28 23:25:42,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315714605] [2021-10-28 23:25:42,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:42,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 23:25:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-10-28 23:25:42,975 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:43,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:43,149 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-10-28 23:25:43,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:25:43,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-10-28 23:25:43,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:25:43,151 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2021-10-28 23:25:43,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 23:25:43,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 23:25:43,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2021-10-28 23:25:43,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:43,153 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-10-28 23:25:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2021-10-28 23:25:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-10-28 23:25:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:43,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-28 23:25:43,155 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 23:25:43,156 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 23:25:43,156 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:25:43,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-10-28 23:25:43,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:25:43,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:43,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:43,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:25:43,158 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:43,158 INFO L791 eck$LassoCheckResult]: Stem: 370#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 371#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 376#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 373#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 368#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 369#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 374#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 380#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-10-28 23:25:43,159 INFO L793 eck$LassoCheckResult]: Loop: 377#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 379#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 367#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 372#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 381#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 377#L20 [2021-10-28 23:25:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:43,159 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 2 times [2021-10-28 23:25:43,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:43,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780763558] [2021-10-28 23:25:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:43,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:43,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:43,179 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:43,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:43,202 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:43,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:43,203 INFO L85 PathProgramCache]: Analyzing trace with hash 49698504, now seen corresponding path program 1 times [2021-10-28 23:25:43,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:43,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234837804] [2021-10-28 23:25:43,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:43,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:43,228 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:43,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:43,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1758681084, now seen corresponding path program 1 times [2021-10-28 23:25:43,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:43,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241100969] [2021-10-28 23:25:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:43,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:43,441 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:43,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:43,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241100969] [2021-10-28 23:25:43,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241100969] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:25:43,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044391866] [2021-10-28 23:25:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:43,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:25:43,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:43,447 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:25:43,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-28 23:25:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:43,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:25:43,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:43,574 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-28 23:25:43,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-10-28 23:25:43,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 23:25:43,798 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-10-28 23:25:43,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-10-28 23:25:43,909 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-10-28 23:25:43,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 44 [2021-10-28 23:25:44,471 INFO L354 Elim1Store]: treesize reduction 21, result has 36.4 percent of original size [2021-10-28 23:25:44,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 41 [2021-10-28 23:25:44,485 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:25:44,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044391866] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:25:44,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:25:44,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2021-10-28 23:25:44,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33946829] [2021-10-28 23:25:44,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:44,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:25:44,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:25:44,784 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 12 states, 11 states have (on average 2.0) internal successors, (22), 12 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:53,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:53,043 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2021-10-28 23:25:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:25:53,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2021-10-28 23:25:53,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-28 23:25:53,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 21 states and 25 transitions. [2021-10-28 23:25:53,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-28 23:25:53,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 23:25:53,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 25 transitions. [2021-10-28 23:25:53,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:53,047 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 25 transitions. [2021-10-28 23:25:53,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 25 transitions. [2021-10-28 23:25:53,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2021-10-28 23:25:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:53,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2021-10-28 23:25:53,049 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 23:25:53,049 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2021-10-28 23:25:53,049 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:25:53,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2021-10-28 23:25:53,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:25:53,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:53,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:53,052 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:25:53,052 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-28 23:25:53,052 INFO L791 eck$LassoCheckResult]: Stem: 472#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 473#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 478#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 475#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 470#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 471#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 476#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 482#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-10-28 23:25:53,052 INFO L793 eck$LassoCheckResult]: Loop: 479#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 481#L24 assume !(0 == main_#t~mem7);havoc main_#t~mem7;call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(1, main_~x3~0.base, main_~x3~0.offset, 4); 469#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 474#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 483#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 479#L20 [2021-10-28 23:25:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:53,053 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 3 times [2021-10-28 23:25:53,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:53,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305792240] [2021-10-28 23:25:53,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:53,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,071 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:53,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:53,092 INFO L85 PathProgramCache]: Analyzing trace with hash 49758086, now seen corresponding path program 1 times [2021-10-28 23:25:53,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:53,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315507911] [2021-10-28 23:25:53,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:53,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:53,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:53,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:25:53,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315507911] [2021-10-28 23:25:53,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315507911] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:25:53,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:25:53,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:25:53,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326162896] [2021-10-28 23:25:53,122 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:25:53,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:25:53,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:25:53,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:25:53,124 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:53,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:25:53,158 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-28 23:25:53,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:25:53,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-10-28 23:25:53,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:25:53,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 16 states and 19 transitions. [2021-10-28 23:25:53,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-28 23:25:53,161 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2021-10-28 23:25:53,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2021-10-28 23:25:53,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:25:53,161 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 23:25:53,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2021-10-28 23:25:53,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-28 23:25:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.1875) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:53,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-28 23:25:53,168 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 23:25:53,168 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-28 23:25:53,168 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:25:53,168 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2021-10-28 23:25:53,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:25:53,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:25:53,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:25:53,171 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:25:53,171 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2021-10-28 23:25:53,171 INFO L791 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 516#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 521#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 518#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 513#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 514#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 519#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 525#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-10-28 23:25:53,171 INFO L793 eck$LassoCheckResult]: Loop: 522#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 523#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 526#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 511#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 512#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 517#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 520#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 522#L20 [2021-10-28 23:25:53,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:53,173 INFO L85 PathProgramCache]: Analyzing trace with hash 179493189, now seen corresponding path program 4 times [2021-10-28 23:25:53,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:53,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118044548] [2021-10-28 23:25:53,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:53,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:53,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,203 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:53,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1770012235, now seen corresponding path program 1 times [2021-10-28 23:25:53,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:53,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173004723] [2021-10-28 23:25:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:53,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,256 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:53,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,270 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:53,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:53,274 INFO L85 PathProgramCache]: Analyzing trace with hash -161041423, now seen corresponding path program 2 times [2021-10-28 23:25:53,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:25:53,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311457385] [2021-10-28 23:25:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:25:53,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:25:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,314 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:25:53,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:25:53,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:25:55,361 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:25:55,361 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:25:55,361 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:25:55,361 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:25:55,361 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:25:55,361 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:55,361 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:25:55,361 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:25:55,362 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration6_Lasso [2021-10-28 23:25:55,362 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:25:55,362 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:25:55,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:55,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:25:56,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:25:56,638 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:25:56,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:56,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:56,644 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:56,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:56,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:56,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:56,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:56,658 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:56,661 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:56,661 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:56,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:25:56,682 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:56,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:56,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:56,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:56,728 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:56,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:56,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:56,743 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:56,743 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:56,743 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:56,747 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:56,747 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:56,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:25:56,766 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:56,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:56,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:56,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:56,808 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:56,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:25:56,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:56,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:56,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:56,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:56,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:56,825 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:56,825 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:56,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:56,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 23:25:56,870 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:56,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:56,871 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:56,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:56,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:25:56,884 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:56,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:56,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:56,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:56,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:56,889 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:56,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:56,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:25:56,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:56,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:56,921 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:56,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:25:56,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:56,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:56,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:56,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:56,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:56,938 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:56,938 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:56,941 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:56,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 23:25:56,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:56,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:56,966 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:56,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:25:56,968 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:56,979 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:56,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:56,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:56,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:56,981 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:56,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:56,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:57,040 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,041 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:25:57,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:57,119 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,120 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:25:57,122 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:57,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,228 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,235 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,249 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:25:57,266 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:57,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,314 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,331 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,331 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:25:57,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 23:25:57,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,382 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:25:57,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,399 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 23:25:57,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,436 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:25:57,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:25:57,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 23:25:57,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,521 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:25:57,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:25:57,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:25:57,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:25:57,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:25:57,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:25:57,534 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:25:57,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:25:57,540 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:25:57,575 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 23:25:57,575 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 23:25:57,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:25:57,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:25:57,577 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:25:57,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:25:57,580 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:25:57,592 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:25:57,592 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:25:57,592 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2) = -2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 + 1 Supporting invariants [3*ULTIMATE.start_main_#t~mem6 - 2*v_rep(select (select #memory_int ULTIMATE.start_main_~x1~0.base) ULTIMATE.start_main_~x1~0.offset)_2 >= 0] [2021-10-28 23:25:57,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 23:25:57,789 INFO L297 tatePredicateManager]: 37 out of 38 supporting invariants were superfluous and have been removed [2021-10-28 23:25:57,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:57,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-28 23:25:57,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:57,944 INFO L354 Elim1Store]: treesize reduction 157, result has 12.3 percent of original size [2021-10-28 23:25:57,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 48 [2021-10-28 23:25:57,961 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-28 23:25:57,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2021-10-28 23:25:58,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:25:58,312 INFO L354 Elim1Store]: treesize reduction 96, result has 19.3 percent of original size [2021-10-28 23:25:58,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 48 treesize of output 57 [2021-10-28 23:25:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:58,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:25:58,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:58,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 25 [2021-10-28 23:25:58,989 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-10-28 23:25:58,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-10-28 23:25:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:25:59,191 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 4 loop predicates [2021-10-28 23:25:59,192 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:59,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 22 states and 26 transitions. Complement of second has 7 states. [2021-10-28 23:25:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 0 non-accepting loop states 2 accepting loop states [2021-10-28 23:25:59,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:25:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2021-10-28 23:25:59,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 10 transitions. Stem has 8 letters. Loop has 7 letters. [2021-10-28 23:25:59,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:25:59,365 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:25:59,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:25:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:59,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 26 conjunts are in the unsatisfiable core [2021-10-28 23:25:59,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:59,517 INFO L354 Elim1Store]: treesize reduction 105, result has 17.3 percent of original size [2021-10-28 23:25:59,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 29 [2021-10-28 23:25:59,716 INFO L354 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2021-10-28 23:25:59,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 39 [2021-10-28 23:25:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:25:59,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:25:59,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:25:59,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 37 treesize of output 25 [2021-10-28 23:26:00,179 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-10-28 23:26:00,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-10-28 23:26:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:00,325 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 4 loop predicates [2021-10-28 23:26:00,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:00,726 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 54 transitions. Complement of second has 17 states. [2021-10-28 23:26:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 6 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-28 23:26:00,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 26 transitions. [2021-10-28 23:26:00,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 7 letters. [2021-10-28 23:26:00,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:00,729 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 15 letters. Loop has 7 letters. [2021-10-28 23:26:00,729 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:00,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 26 transitions. Stem has 8 letters. Loop has 14 letters. [2021-10-28 23:26:00,730 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:00,730 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 54 transitions. [2021-10-28 23:26:00,731 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:26:00,732 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 30 states and 36 transitions. [2021-10-28 23:26:00,732 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-28 23:26:00,733 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-28 23:26:00,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2021-10-28 23:26:00,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:00,733 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-10-28 23:26:00,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2021-10-28 23:26:00,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-10-28 23:26:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:00,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2021-10-28 23:26:00,739 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-28 23:26:00,740 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2021-10-28 23:26:00,740 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:26:00,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2021-10-28 23:26:00,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:26:00,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:00,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:00,748 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-28 23:26:00,750 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:26:00,751 INFO L791 eck$LassoCheckResult]: Stem: 918#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 919#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 920#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 921#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 916#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 917#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 922#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 935#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 934#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-10-28 23:26:00,751 INFO L793 eck$LassoCheckResult]: Loop: 926#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 925#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 923#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 914#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 915#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 937#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 936#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 924#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 926#L24 [2021-10-28 23:26:00,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1269321585, now seen corresponding path program 1 times [2021-10-28 23:26:00,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:00,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736924520] [2021-10-28 23:26:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:00,753 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:00,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:00,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:00,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736924520] [2021-10-28 23:26:00,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736924520] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:00,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341299538] [2021-10-28 23:26:00,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:00,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:00,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:00,987 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:00,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-10-28 23:26:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:01,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-28 23:26:01,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:01,222 INFO L354 Elim1Store]: treesize reduction 133, result has 14.2 percent of original size [2021-10-28 23:26:01,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 40 [2021-10-28 23:26:01,228 INFO L388 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 42 treesize of output 40 [2021-10-28 23:26:01,443 INFO L354 Elim1Store]: treesize reduction 100, result has 27.5 percent of original size [2021-10-28 23:26:01,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 61 [2021-10-28 23:26:01,870 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-10-28 23:26:01,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 42 [2021-10-28 23:26:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:01,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341299538] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:01,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:01,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-28 23:26:01,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243704313] [2021-10-28 23:26:01,892 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:26:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:01,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 1 times [2021-10-28 23:26:01,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:01,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907407391] [2021-10-28 23:26:01,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:01,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:01,935 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:01,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:02,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:02,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:26:02,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:26:02,462 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:02,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:02,884 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-10-28 23:26:02,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:26:02,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2021-10-28 23:26:02,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:26:02,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 33 transitions. [2021-10-28 23:26:02,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 23:26:02,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 23:26:02,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2021-10-28 23:26:02,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:02,887 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-10-28 23:26:02,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2021-10-28 23:26:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-10-28 23:26:02,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:02,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-10-28 23:26:02,890 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-28 23:26:02,890 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-28 23:26:02,891 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:26:02,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2021-10-28 23:26:02,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:26:02,892 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:02,892 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:02,893 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-10-28 23:26:02,893 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2021-10-28 23:26:02,893 INFO L791 eck$LassoCheckResult]: Stem: 1019#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1020#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1021#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1022#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1017#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1018#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1036#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1033#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1027#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1023#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1024#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1026#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1038#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1035#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1032#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1028#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-10-28 23:26:02,893 INFO L793 eck$LassoCheckResult]: Loop: 1029#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1030#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1025#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1015#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1016#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1037#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1034#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1031#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1029#L24 [2021-10-28 23:26:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:02,894 INFO L85 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 1 times [2021-10-28 23:26:02,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:02,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161836018] [2021-10-28 23:26:02,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:02,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:02,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:02,919 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:02,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:02,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:02,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1088312668, now seen corresponding path program 2 times [2021-10-28 23:26:02,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:02,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861676483] [2021-10-28 23:26:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:02,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:02,959 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:02,969 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:02,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:02,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1710122080, now seen corresponding path program 1 times [2021-10-28 23:26:02,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:02,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223025505] [2021-10-28 23:26:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:02,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:03,135 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 23:26:03,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:26:03,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223025505] [2021-10-28 23:26:03,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223025505] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:03,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871171524] [2021-10-28 23:26:03,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:03,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:26:03,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:03,142 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:26:03,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-10-28 23:26:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:03,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-28 23:26:03,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:03,377 INFO L388 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 14 treesize of output 12 [2021-10-28 23:26:03,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 23:26:03,593 INFO L354 Elim1Store]: treesize reduction 20, result has 37.5 percent of original size [2021-10-28 23:26:03,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 26 [2021-10-28 23:26:03,684 INFO L354 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2021-10-28 23:26:03,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 40 [2021-10-28 23:26:04,426 INFO L354 Elim1Store]: treesize reduction 36, result has 35.7 percent of original size [2021-10-28 23:26:04,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 55 [2021-10-28 23:26:04,598 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 23:26:04,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 27 [2021-10-28 23:26:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-28 23:26:04,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871171524] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:26:04,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:26:04,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 11 [2021-10-28 23:26:04,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565319253] [2021-10-28 23:26:05,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:26:05,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:26:05,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:26:05,145 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:06,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:26:06,592 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2021-10-28 23:26:06,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:26:06,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2021-10-28 23:26:06,594 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-10-28 23:26:06,594 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 38 transitions. [2021-10-28 23:26:06,594 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-28 23:26:06,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-28 23:26:06,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2021-10-28 23:26:06,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:26:06,596 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2021-10-28 23:26:06,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2021-10-28 23:26:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-28 23:26:06,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 30 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:06,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-10-28 23:26:06,600 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 23:26:06,600 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-10-28 23:26:06,600 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:26:06,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2021-10-28 23:26:06,601 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-10-28 23:26:06,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:26:06,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:26:06,602 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 2, 2, 1, 1, 1, 1] [2021-10-28 23:26:06,603 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 2, 2, 1, 1, 1] [2021-10-28 23:26:06,603 INFO L791 eck$LassoCheckResult]: Stem: 1172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1173#L-1 havoc main_#res;havoc main_#t~malloc0.base, main_#t~malloc0.offset, main_#t~malloc1.base, main_#t~malloc1.offset, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~malloc3.base, main_#t~malloc3.offset, main_#t~mem5, main_#t~mem6, main_#t~mem7, main_#t~mem4, main_~x0~0.base, main_~x0~0.offset, main_~x1~0.base, main_~x1~0.offset, main_~x2~0.base, main_~x2~0.offset, main_~x3~0.base, main_~x3~0.offset;call main_#t~malloc0.base, main_#t~malloc0.offset := #Ultimate.allocOnStack(4);main_~x0~0.base, main_~x0~0.offset := main_#t~malloc0.base, main_#t~malloc0.offset;call main_#t~malloc1.base, main_#t~malloc1.offset := #Ultimate.allocOnStack(4);main_~x1~0.base, main_~x1~0.offset := main_#t~malloc1.base, main_#t~malloc1.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnStack(4);main_~x2~0.base, main_~x2~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;call main_#t~malloc3.base, main_#t~malloc3.offset := #Ultimate.allocOnStack(4);main_~x3~0.base, main_~x3~0.offset := main_#t~malloc3.base, main_#t~malloc3.offset;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call write~int(0, main_~x2~0.base, main_~x2~0.offset, 4);call write~int(0, main_~x3~0.base, main_~x3~0.offset, 4); 1174#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1175#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1170#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1171#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1176#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1196#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1195#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1181#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1193#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1191#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1190#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1188#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1185#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1180#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-10-28 23:26:06,603 INFO L793 eck$LassoCheckResult]: Loop: 1182#L24 assume 0 == main_#t~mem7;havoc main_#t~mem7;call write~int(1, main_~x2~0.base, main_~x2~0.offset, 4); 1183#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1177#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1168#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1169#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1198#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1197#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1178#L20 assume 0 == main_#t~mem6;havoc main_#t~mem6;call write~int(1, main_~x1~0.base, main_~x1~0.offset, 4); 1179#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1194#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1192#L16 assume 0 == main_#t~mem5;havoc main_#t~mem5;call write~int(1, main_~x0~0.base, main_~x0~0.offset, 4); 1187#L24-2 call main_#t~mem4 := read~int(main_~x3~0.base, main_~x3~0.offset, 4); 1189#L15-1 assume !!(0 == main_#t~mem4);havoc main_#t~mem4;call main_#t~mem5 := read~int(main_~x0~0.base, main_~x0~0.offset, 4); 1186#L16 assume !(0 == main_#t~mem5);havoc main_#t~mem5;call write~int(0, main_~x0~0.base, main_~x0~0.offset, 4);call main_#t~mem6 := read~int(main_~x1~0.base, main_~x1~0.offset, 4); 1184#L20 assume !(0 == main_#t~mem6);havoc main_#t~mem6;call write~int(0, main_~x1~0.base, main_~x1~0.offset, 4);call main_#t~mem7 := read~int(main_~x2~0.base, main_~x2~0.offset, 4); 1182#L24 [2021-10-28 23:26:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:06,604 INFO L85 PathProgramCache]: Analyzing trace with hash -697316795, now seen corresponding path program 2 times [2021-10-28 23:26:06,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:06,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023054311] [2021-10-28 23:26:06,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:06,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:06,628 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:06,654 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:06,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:06,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2047759866, now seen corresponding path program 1 times [2021-10-28 23:26:06,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:06,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964235706] [2021-10-28 23:26:06,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:06,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:06,671 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:06,725 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:06,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash 462437174, now seen corresponding path program 2 times [2021-10-28 23:26:06,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:26:06,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171075075] [2021-10-28 23:26:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:26:06,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:26:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:06,764 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:26:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:26:06,803 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:26:11,927 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:26:11,927 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:26:11,927 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:26:11,927 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:26:11,927 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:26:11,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:11,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:26:11,928 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:26:11,928 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4BitCounterPointer.c_Iteration9_Lasso [2021-10-28 23:26:11,928 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:26:11,928 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:26:11,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:11,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:11,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:11,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:11,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:11,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:11,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:12,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:12,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:26:13,350 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:26:13,350 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:26:13,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,353 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:26:13,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,364 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,364 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:13,364 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,364 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,364 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,365 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:13,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:13,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:13,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,395 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:26:13,397 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:13,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,407 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,407 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:13,407 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:13,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:13,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,437 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:26:13,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:26:13,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,448 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:26:13,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:26:13,449 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 23:26:13,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,475 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:26:13,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 23:26:13,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,546 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:26:13,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 23:26:13,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,593 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:26:13,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,607 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 23:26:13,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,648 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:26:13,651 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,661 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,661 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,661 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,664 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,664 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:13,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,697 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:26:13,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,708 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,750 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:13,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,795 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,797 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:26:13,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:13,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,873 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:26:13,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,889 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:13,922 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,923 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:26:13,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,936 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:13,942 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:13,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 23:26:13,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:13,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:13,967 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:13,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:26:13,969 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:13,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:13,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:13,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:13,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:13,991 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:13,991 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:14,010 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:14,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:26:14,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,039 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:26:14,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:14,049 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:14,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:14,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:14,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:14,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:14,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:14,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:14,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 23:26:14,078 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,079 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:26:14,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:14,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:14,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:14,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:14,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:14,092 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:14,092 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:14,097 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:14,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:14,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,125 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:26:14,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:14,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:14,136 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:14,136 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:14,136 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:14,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:14,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:14,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:14,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:14,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,187 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:26:14,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:14,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:14,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:14,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:14,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:14,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:14,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:14,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:26:14,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:14,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,284 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:26:14,298 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:26:14,298 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:26:14,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:26:14,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:26:14,302 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:26:14,302 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:26:14,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:26:14,324 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:26:14,336 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 23:26:14,336 INFO L444 ModelExtractionUtils]: 0 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-28 23:26:14,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:26:14,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:26:14,343 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:26:14,345 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:26:14,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:26:14,372 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:26:14,372 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:26:14,372 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_#t~mem7) = -2*ULTIMATE.start_main_#t~mem7 + 1 Supporting invariants [] [2021-10-28 23:26:14,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 23:26:14,623 INFO L297 tatePredicateManager]: 42 out of 42 supporting invariants were superfluous and have been removed [2021-10-28 23:26:14,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:26:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:14,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:26:14,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:26:14,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-28 23:26:14,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:26:14,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-28 23:26:14,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:14,909 INFO L354 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2021-10-28 23:26:14,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 30 [2021-10-28 23:26:15,049 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-10-28 23:26:15,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 21 [2021-10-28 23:26:15,150 INFO L354 Elim1Store]: treesize reduction 67, result has 32.3 percent of original size [2021-10-28 23:26:15,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 48 [2021-10-28 23:26:15,427 INFO L354 Elim1Store]: treesize reduction 66, result has 33.3 percent of original size [2021-10-28 23:26:15,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-10-28 23:26:15,715 INFO L354 Elim1Store]: treesize reduction 84, result has 15.2 percent of original size [2021-10-28 23:26:15,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 49 [2021-10-28 23:26:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:26:15,872 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 9 loop predicates [2021-10-28 23:26:15,872 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8 Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:16,162 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 36 transitions. cyclomatic complexity: 8. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 61 states and 70 transitions. Complement of second has 23 states. [2021-10-28 23:26:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2021-10-28 23:26:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:26:16,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 33 transitions. [2021-10-28 23:26:16,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 15 letters. [2021-10-28 23:26:16,164 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:16,164 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 31 letters. Loop has 15 letters. [2021-10-28 23:26:16,165 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:16,165 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 33 transitions. Stem has 16 letters. Loop has 30 letters. [2021-10-28 23:26:16,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:26:16,166 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 70 transitions. [2021-10-28 23:26:16,167 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:26:16,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 0 states and 0 transitions. [2021-10-28 23:26:16,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:26:16,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:26:16,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:26:16,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:26:16,168 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:26:16,168 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:26:16,169 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:26:16,169 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:26:16,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:26:16,169 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:26:16,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:26:16,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:26:16 BoogieIcfgContainer [2021-10-28 23:26:16,177 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:26:16,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:26:16,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:26:16,178 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:26:16,179 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:25:34" (3/4) ... [2021-10-28 23:26:16,182 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:26:16,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:26:16,184 INFO L168 Benchmark]: Toolchain (without parser) took 42766.71 ms. Allocated memory was 86.0 MB in the beginning and 195.0 MB in the end (delta: 109.1 MB). Free memory was 52.0 MB in the beginning and 53.6 MB in the end (delta: -1.6 MB). Peak memory consumption was 106.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:16,184 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 56.4 MB in the beginning and 56.4 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:16,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.67 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 51.8 MB in the beginning and 105.3 MB in the end (delta: -53.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:16,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.58 ms. Allocated memory is still 127.9 MB. Free memory was 105.3 MB in the beginning and 103.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:16,186 INFO L168 Benchmark]: Boogie Preprocessor took 41.50 ms. Allocated memory is still 127.9 MB. Free memory was 103.9 MB in the beginning and 102.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:16,186 INFO L168 Benchmark]: RCFGBuilder took 521.93 ms. Allocated memory is still 127.9 MB. Free memory was 102.5 MB in the beginning and 91.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:16,187 INFO L168 Benchmark]: BuchiAutomizer took 41725.51 ms. Allocated memory was 127.9 MB in the beginning and 195.0 MB in the end (delta: 67.1 MB). Free memory was 91.3 MB in the beginning and 53.6 MB in the end (delta: 37.8 MB). Peak memory consumption was 106.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:26:16,187 INFO L168 Benchmark]: Witness Printer took 5.13 ms. Allocated memory is still 195.0 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:26:16,190 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 86.0 MB. Free memory was 56.4 MB in the beginning and 56.4 MB in the end (delta: 27.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.67 ms. Allocated memory was 86.0 MB in the beginning and 127.9 MB in the end (delta: 41.9 MB). Free memory was 51.8 MB in the beginning and 105.3 MB in the end (delta: -53.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.58 ms. Allocated memory is still 127.9 MB. Free memory was 105.3 MB in the beginning and 103.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.50 ms. Allocated memory is still 127.9 MB. Free memory was 103.9 MB in the beginning and 102.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 521.93 ms. Allocated memory is still 127.9 MB. Free memory was 102.5 MB in the beginning and 91.3 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 41725.51 ms. Allocated memory was 127.9 MB in the beginning and 195.0 MB in the end (delta: 67.1 MB). Free memory was 91.3 MB in the beginning and 53.6 MB in the end (delta: 37.8 MB). Peak memory consumption was 106.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.13 ms. Allocated memory is still 195.0 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 9 terminating modules (6 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 1 + -2 * unknown-#memory_int-unknown[x0][x0] and consists of 5 locations. One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[x1][x1] + 1 and consists of 12 locations. One deterministic module has affine ranking function -2 * aux-x2-aux + 1 and consists of 13 locations. 6 modules have a trivial ranking function, the largest among these consists of 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 41.6s and 10 iterations. TraceHistogramMax:4. Analysis of lassos took 26.2s. Construction of modules took 3.8s. Büchi inclusion checks took 11.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 8. Automata minimization 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 31 states and ocurred in iteration 8. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 12/22 HoareTripleCheckerStatistics: 39 SDtfs, 90 SDslu, 45 SDs, 0 SdLazy, 464 SolverSat, 124 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 3.8s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital1233 mio100 ax100 hnf100 lsp98 ukn33 mio100 lsp38 div100 bol100 ite100 ukn100 eq187 hnf88 smp96 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 54ms 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! [2021-10-28 23:26:16,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:16,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:26:16,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-10-28 23:26:16,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-10-28 23:26:17,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e60bce2-5e76-4a89-8ca8-7fbbf28b31df/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...