./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i --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_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg --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 b91dcc12f43fdd03af0529f07bf7885945925554291ddde3b9ca40d8f32b93c1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:13:22,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:13:22,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:13:22,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:13:22,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:13:22,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:13:22,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:13:22,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:13:22,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:13:22,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:13:22,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:13:22,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:13:22,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:13:22,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:13:22,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:13:22,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:13:22,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:13:22,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:13:22,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:13:22,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:13:22,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:13:22,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:13:22,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:13:22,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:13:22,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:13:22,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:13:22,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:13:22,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:13:22,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:13:22,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:13:22,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:13:22,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:13:22,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:13:22,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:13:22,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:13:22,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:13:22,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:13:22,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:13:22,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:13:22,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:13:22,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:13:22,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:13:23,040 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:13:23,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:13:23,041 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:13:23,041 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:13:23,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:13:23,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:13:23,043 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:13:23,043 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:13:23,044 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:13:23,044 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:13:23,045 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:13:23,045 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:13:23,045 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:13:23,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:13:23,046 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:13:23,046 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:13:23,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:13:23,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:13:23,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:13:23,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:13:23,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:13:23,066 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:13:23,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:13:23,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:13:23,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:13:23,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:13:23,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:13:23,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:13:23,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:13:23,068 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:13:23,069 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_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b91dcc12f43fdd03af0529f07bf7885945925554291ddde3b9ca40d8f32b93c1 [2021-10-28 09:13:23,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:13:23,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:13:23,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:13:23,367 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:13:23,368 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:13:23,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i [2021-10-28 09:13:23,469 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/data/9dbfa31cc/716ccee1e1174e748e4e23e90123d603/FLAG9da7a7127 [2021-10-28 09:13:24,051 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:13:24,052 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/sv-benchmarks/c/termination-recursive-malloc/rec_malloc_ex2.i [2021-10-28 09:13:24,059 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/data/9dbfa31cc/716ccee1e1174e748e4e23e90123d603/FLAG9da7a7127 [2021-10-28 09:13:24,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/data/9dbfa31cc/716ccee1e1174e748e4e23e90123d603 [2021-10-28 09:13:24,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:13:24,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:13:24,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:13:24,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:13:24,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:13:24,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479a95f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24, skipping insertion in model container [2021-10-28 09:13:24,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:13:24,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:13:24,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:13:24,622 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:13:24,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:13:24,649 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:13:24,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24 WrapperNode [2021-10-28 09:13:24,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:13:24,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:13:24,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:13:24,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:13:24,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:13:24,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:13:24,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:13:24,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:13:24,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:13:24,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:13:24,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:13:24,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:13:24,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (1/1) ... [2021-10-28 09:13:24,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:24,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:24,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:24,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:13:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:13:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-10-28 09:13:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-10-28 09:13:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 09:13:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:13:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:13:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:13:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:13:25,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:13:25,011 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:13:25,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:25 BoogieIcfgContainer [2021-10-28 09:13:25,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:13:25,014 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:13:25,014 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:13:25,018 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:13:25,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:13:25,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:13:24" (1/3) ... [2021-10-28 09:13:25,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55f93aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:13:25, skipping insertion in model container [2021-10-28 09:13:25,020 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:13:25,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:13:24" (2/3) ... [2021-10-28 09:13:25,020 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55f93aa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:13:25, skipping insertion in model container [2021-10-28 09:13:25,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:13:25,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:25" (3/3) ... [2021-10-28 09:13:25,022 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_malloc_ex2.i [2021-10-28 09:13:25,076 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:13:25,076 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:13:25,076 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:13:25,076 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:13:25,077 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:13:25,077 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:13:25,077 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:13:25,077 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:13:25,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:13:25,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:25,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:25,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:25,176 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:13:25,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:25,191 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:13:25,191 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:13:25,194 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:25,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:25,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:25,196 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:13:25,196 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:25,204 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 12#L23-3true [2021-10-28 09:13:25,205 INFO L793 eck$LassoCheckResult]: Loop: 12#L23-3true call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 9#L23-1true assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 7#L26true call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 11#recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 10#L9true assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 15#recFINALtrue assume true; 13#recEXITtrue >#31#return; 5#L26-1true call write~int(main_#t~mem13 + main_#t~ret12, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~mem13;havoc main_#t~ret12; 12#L23-3true [2021-10-28 09:13:25,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 1 times [2021-10-28 09:13:25,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:25,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544017610] [2021-10-28 09:13:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:25,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:25,400 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:25,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:25,470 INFO L85 PathProgramCache]: Analyzing trace with hash -5927165, now seen corresponding path program 1 times [2021-10-28 09:13:25,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:25,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71553140] [2021-10-28 09:13:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:25,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:25,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:25,821 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 09:13:25,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:25,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71553140] [2021-10-28 09:13:25,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71553140] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:13:25,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:13:25,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:13:25,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201073698] [2021-10-28 09:13:25,830 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:13:25,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:25,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 09:13:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-10-28 09:13:25,852 INFO L87 Difference]: Start difference. First operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:13:25,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:25,966 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-28 09:13:25,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:13:25,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-10-28 09:13:25,974 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:25,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 16 transitions. [2021-10-28 09:13:25,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 09:13:25,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 09:13:25,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 16 transitions. [2021-10-28 09:13:25,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:13:25,985 INFO L681 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 09:13:26,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 16 transitions. [2021-10-28 09:13:26,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-10-28 09:13:26,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:13:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-10-28 09:13:26,016 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 09:13:26,017 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-10-28 09:13:26,017 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:13:26,018 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 16 transitions. [2021-10-28 09:13:26,019 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:26,020 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:26,020 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:26,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:13:26,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:26,022 INFO L791 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 52#L-1 havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 58#L23-3 [2021-10-28 09:13:26,022 INFO L793 eck$LassoCheckResult]: Loop: 58#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 60#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 54#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 59#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 53#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 55#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 59#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 53#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 56#recFINAL assume true; 61#recEXIT >#29#return; 62#L17-1 #res := #t~ret6;havoc #t~ret6; 63#recFINAL assume true; 64#recEXIT >#31#return; 57#L26-1 call write~int(main_#t~mem13 + main_#t~ret12, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~mem13;havoc main_#t~ret12; 58#L23-3 [2021-10-28 09:13:26,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:26,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 2 times [2021-10-28 09:13:26,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:26,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882264856] [2021-10-28 09:13:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:26,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:26,056 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:26,078 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:26,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:26,081 INFO L85 PathProgramCache]: Analyzing trace with hash -741726607, now seen corresponding path program 1 times [2021-10-28 09:13:26,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:26,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134822417] [2021-10-28 09:13:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:26,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:26,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:26,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:13:26,383 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:26,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134822417] [2021-10-28 09:13:26,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134822417] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:26,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226864693] [2021-10-28 09:13:26,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:26,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:26,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:26,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 09:13:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:26,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-28 09:13:26,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:26,628 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 09:13:26,629 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 23 treesize of output 18 [2021-10-28 09:13:27,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 09:13:27,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226864693] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:27,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:27,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2021-10-28 09:13:27,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852651299] [2021-10-28 09:13:27,255 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:13:27,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:27,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-28 09:13:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-10-28 09:13:27,257 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. cyclomatic complexity: 4 Second operand has 17 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-10-28 09:13:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:27,492 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2021-10-28 09:13:27,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 09:13:27,494 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2021-10-28 09:13:27,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:27,496 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 09:13:27,496 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:13:27,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:13:27,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2021-10-28 09:13:27,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:13:27,497 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 09:13:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2021-10-28 09:13:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 09:13:27,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 09:13:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 09:13:27,500 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 09:13:27,500 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 09:13:27,500 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:13:27,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 19 transitions. [2021-10-28 09:13:27,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:27,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:27,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:27,502 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:13:27,502 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:27,505 INFO L791 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 162#L-1 havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 168#L23-3 [2021-10-28 09:13:27,505 INFO L793 eck$LassoCheckResult]: Loop: 168#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 170#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 164#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 169#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 163#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 165#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 169#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 163#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 165#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 169#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 163#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 166#recFINAL assume true; 171#recEXIT >#29#return; 172#L17-1 #res := #t~ret6;havoc #t~ret6; 173#recFINAL assume true; 177#recEXIT >#29#return; 175#L17-1 #res := #t~ret6;havoc #t~ret6; 176#recFINAL assume true; 174#recEXIT >#31#return; 167#L26-1 call write~int(main_#t~mem13 + main_#t~ret12, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~mem13;havoc main_#t~ret12; 168#L23-3 [2021-10-28 09:13:27,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 3 times [2021-10-28 09:13:27,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:27,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465541544] [2021-10-28 09:13:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:27,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:27,528 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:27,550 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:27,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1620168125, now seen corresponding path program 2 times [2021-10-28 09:13:27,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:27,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713464959] [2021-10-28 09:13:27,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:27,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:27,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:27,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:27,861 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-28 09:13:27,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:27,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713464959] [2021-10-28 09:13:27,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713464959] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:27,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355301477] [2021-10-28 09:13:27,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:27,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:27,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:27,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:27,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 09:13:27,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:13:27,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:27,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 39 conjunts are in the unsatisfiable core [2021-10-28 09:13:27,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:28,001 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 09:13:28,001 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 23 treesize of output 18 [2021-10-28 09:13:28,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-28 09:13:28,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355301477] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:28,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:28,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2021-10-28 09:13:28,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59911882] [2021-10-28 09:13:28,340 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 09:13:28,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:28,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 09:13:28,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2021-10-28 09:13:28,342 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. cyclomatic complexity: 4 Second operand has 19 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 6 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 09:13:28,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:28,517 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-10-28 09:13:28,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 09:13:28,517 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2021-10-28 09:13:28,519 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:28,520 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 22 transitions. [2021-10-28 09:13:28,520 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2021-10-28 09:13:28,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 09:13:28,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 22 transitions. [2021-10-28 09:13:28,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:13:28,521 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-28 09:13:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 22 transitions. [2021-10-28 09:13:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-28 09:13:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2021-10-28 09:13:28,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-10-28 09:13:28,524 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-28 09:13:28,525 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-28 09:13:28,525 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:13:28,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 22 transitions. [2021-10-28 09:13:28,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2021-10-28 09:13:28,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:28,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:28,532 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:13:28,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-10-28 09:13:28,533 INFO L791 eck$LassoCheckResult]: Stem: 313#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 314#L-1 havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 320#L23-3 [2021-10-28 09:13:28,534 INFO L793 eck$LassoCheckResult]: Loop: 320#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 322#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 316#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 321#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 315#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 317#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 321#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 315#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 317#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 321#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 315#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 317#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 321#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 315#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 318#recFINAL assume true; 323#recEXIT >#29#return; 324#L17-1 #res := #t~ret6;havoc #t~ret6; 325#recFINAL assume true; 332#recEXIT >#29#return; 331#L17-1 #res := #t~ret6;havoc #t~ret6; 330#recFINAL assume true; 329#recEXIT >#29#return; 327#L17-1 #res := #t~ret6;havoc #t~ret6; 328#recFINAL assume true; 326#recEXIT >#31#return; 319#L26-1 call write~int(main_#t~mem13 + main_#t~ret12, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~mem13;havoc main_#t~ret12; 320#L23-3 [2021-10-28 09:13:28,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1219, now seen corresponding path program 4 times [2021-10-28 09:13:28,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:28,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769467047] [2021-10-28 09:13:28,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:28,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:28,550 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:28,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:28,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:28,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1930575665, now seen corresponding path program 3 times [2021-10-28 09:13:28,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:28,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476471340] [2021-10-28 09:13:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:28,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:28,624 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:28,669 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:28,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:28,670 INFO L85 PathProgramCache]: Analyzing trace with hash 650376563, now seen corresponding path program 1 times [2021-10-28 09:13:28,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:28,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180729263] [2021-10-28 09:13:28,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:28,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:28,724 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:28,799 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:33,196 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:33,196 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:33,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:33,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:33,197 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:33,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:33,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:33,197 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:33,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex2.i_Iteration4_Lasso [2021-10-28 09:13:33,197 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:33,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:33,215 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 09:13:33,221 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 09:13:33,223 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 09:13:33,226 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 09:13:33,228 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 09:13:33,230 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 09:13:33,234 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 09:13:33,396 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 09:13:33,399 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 09:13:33,401 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 09:13:33,403 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 09:13:33,406 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 09:13:33,408 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 09:13:33,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:33,922 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:33,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:33,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:33,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:33,952 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 09:13:33,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:13:33,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:33,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:33,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:33,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:33,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:33,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:33,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:33,967 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:33,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:33,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:33,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:33,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:33,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:13:33,991 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 09:13:33,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:33,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:33,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:33,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:33,998 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:33,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:33,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:34,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:34,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:34,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:34,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,028 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:13:34,031 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 09:13:34,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:34,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:34,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:34,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:34,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:34,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:34,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:34,051 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:34,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-10-28 09:13:34,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:34,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:13:34,076 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 09:13:34,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:34,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:34,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:34,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:34,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:34,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:34,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:34,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:34,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:34,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,112 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:13:34,114 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 09:13:34,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:34,122 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:34,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:34,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:34,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:34,123 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:34,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:34,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:34,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:34,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:34,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,153 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:13:34,154 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 09:13:34,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:34,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:34,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:34,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:34,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:34,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:34,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:34,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:34,232 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:34,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,233 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,239 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 09:13:34,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:34,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:34,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:34,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:34,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:34,260 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:34,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:13:34,282 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:34,321 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:13:34,321 INFO L444 ModelExtractionUtils]: 4 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:13:34,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:34,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:34,327 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:34,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:13:34,346 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:34,378 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:13:34,378 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:34,378 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~ip~0.base) ULTIMATE.start_main_~ip~0.offset)_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~ip~0.base) ULTIMATE.start_main_~ip~0.offset)_1 Supporting invariants [] [2021-10-28 09:13:34,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:34,417 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 09:13:34,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:34,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:13:34,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:34,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-28 09:13:34,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:34,600 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:13:34,600 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 11 treesize of output 11 [2021-10-28 09:13:34,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-28 09:13:34,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-10-28 09:13:34,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-10-28 09:13:35,104 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 8 loop predicates [2021-10-28 09:13:35,105 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4 Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:13:35,317 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 22 transitions. cyclomatic complexity: 4. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 66 states and 73 transitions. Complement of second has 24 states. [2021-10-28 09:13:35,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:35,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:13:35,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 14 transitions. [2021-10-28 09:13:35,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 2 letters. Loop has 26 letters. [2021-10-28 09:13:35,324 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:35,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 28 letters. Loop has 26 letters. [2021-10-28 09:13:35,325 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:35,325 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 14 transitions. Stem has 2 letters. Loop has 52 letters. [2021-10-28 09:13:35,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:35,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 73 transitions. [2021-10-28 09:13:35,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:13:35,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 35 states and 40 transitions. [2021-10-28 09:13:35,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 09:13:35,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-10-28 09:13:35,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 40 transitions. [2021-10-28 09:13:35,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:35,347 INFO L681 BuchiCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-10-28 09:13:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 40 transitions. [2021-10-28 09:13:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2021-10-28 09:13:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 09:13:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-10-28 09:13:35,355 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-10-28 09:13:35,355 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-10-28 09:13:35,355 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 09:13:35,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 33 transitions. [2021-10-28 09:13:35,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:13:35,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:35,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:35,361 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 09:13:35,362 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:13:35,362 INFO L791 eck$LassoCheckResult]: Stem: 541#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 542#L-1 havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 554#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 556#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 544#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 552#recENTRY [2021-10-28 09:13:35,362 INFO L793 eck$LassoCheckResult]: Loop: 552#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 543#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 545#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 552#recENTRY [2021-10-28 09:13:35,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:35,363 INFO L85 PathProgramCache]: Analyzing trace with hash 36330294, now seen corresponding path program 1 times [2021-10-28 09:13:35,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:35,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512362813] [2021-10-28 09:13:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:35,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:35,375 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:35,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash 29943, now seen corresponding path program 1 times [2021-10-28 09:13:35,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:35,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542395126] [2021-10-28 09:13:35,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:35,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:35,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:35,422 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:35,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:35,423 INFO L85 PathProgramCache]: Analyzing trace with hash -15969886, now seen corresponding path program 1 times [2021-10-28 09:13:35,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:35,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352308853] [2021-10-28 09:13:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:35,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:35,443 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:35,473 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:36,557 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:36,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:36,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:36,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:36,558 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:36,558 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:36,558 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:36,558 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:36,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex2.i_Iteration5_Lasso [2021-10-28 09:13:36,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:36,558 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:36,562 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 09:13:36,565 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 09:13:36,567 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 09:13:36,569 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 09:13:36,571 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 09:13:36,573 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 09:13:36,575 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 09:13:36,577 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 09:13:36,579 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 09:13:36,581 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 09:13:36,583 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 09:13:36,585 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 09:13:36,753 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 09:13:36,758 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 09:13:36,760 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 09:13:36,762 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 09:13:36,764 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 09:13:36,766 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 09:13:36,768 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 09:13:36,770 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 09:13:36,772 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 09:13:36,773 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 09:13:36,775 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 09:13:36,776 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 09:13:36,778 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 09:13:36,779 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 09:13:36,781 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 09:13:36,782 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 09:13:36,784 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 09:13:36,786 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 09:13:36,789 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 09:13:36,790 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 09:13:36,792 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 09:13:36,794 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 09:13:36,795 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 09:13:37,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:37,183 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:37,183 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,186 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:13:37,199 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 09:13:37,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,208 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,208 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,208 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,208 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,209 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,209 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,259 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,264 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 09:13:37,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:13:37,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,335 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,341 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 09:13:37,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:13:37,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,387 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:13:37,392 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 09:13:37,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,429 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:13:37,432 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 09:13:37,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,439 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,466 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,504 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,510 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 09:13:37,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,521 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:37,521 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:37,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:13:37,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,574 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,575 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:13:37,576 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 09:13:37,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-28 09:13:37,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,605 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,633 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 09:13:37,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:13:37,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,653 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,676 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:13:37,679 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 09:13:37,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,707 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:13:37,709 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 09:13:37,716 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,716 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,717 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,738 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:13:37,739 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 09:13:37,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:37,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:37,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:37,748 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,768 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:13:37,771 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 09:13:37,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:37,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:37,792 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:37,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,815 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:13:37,827 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 09:13:37,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:37,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:37,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:37,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:37,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:37,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:37,863 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:13:37,882 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-28 09:13:37,882 INFO L444 ModelExtractionUtils]: 0 out of 16 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-28 09:13:37,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:37,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:37,891 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:37,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:13:37,899 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:13:37,916 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:13:37,916 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:13:37,917 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_1) = 2*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_1 + 1 Supporting invariants [] [2021-10-28 09:13:37,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:37,952 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-10-28 09:13:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:37,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:13:37,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:13:38,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:38,059 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 36 treesize of output 20 [2021-10-28 09:13:38,076 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 09:13:38,077 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 09:13:38,077 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 33 transitions. cyclomatic complexity: 7 Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:38,147 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 33 transitions. cyclomatic complexity: 7. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 57 states and 66 transitions. Complement of second has 14 states. [2021-10-28 09:13:38,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 09:13:38,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:13:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-10-28 09:13:38,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2021-10-28 09:13:38,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:38,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2021-10-28 09:13:38,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:38,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 5 letters. Loop has 6 letters. [2021-10-28 09:13:38,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:13:38,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 66 transitions. [2021-10-28 09:13:38,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:13:38,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 40 states and 48 transitions. [2021-10-28 09:13:38,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 09:13:38,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 09:13:38,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 48 transitions. [2021-10-28 09:13:38,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:38,163 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2021-10-28 09:13:38,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 48 transitions. [2021-10-28 09:13:38,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-10-28 09:13:38,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 30 states have internal predecessors, (30), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (10), 4 states have call predecessors, (10), 6 states have call successors, (10) [2021-10-28 09:13:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2021-10-28 09:13:38,177 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2021-10-28 09:13:38,178 INFO L587 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2021-10-28 09:13:38,178 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 09:13:38,178 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 48 transitions. [2021-10-28 09:13:38,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:13:38,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:38,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:38,182 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 09:13:38,183 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:13:38,183 INFO L791 eck$LassoCheckResult]: Stem: 698#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 699#L-1 havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 713#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 714#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 704#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 712#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 703#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 705#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 734#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 733#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 720#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 734#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 733#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 720#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 734#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 730#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 731#recFINAL assume true; 737#recEXIT >#29#return; 718#L17-1 #res := #t~ret6;havoc #t~ret6; 721#recFINAL assume true; 729#recEXIT >#29#return; 727#L17-1 #res := #t~ret6;havoc #t~ret6; 728#recFINAL assume true; 726#recEXIT >#29#return; 725#L17-1 #res := #t~ret6;havoc #t~ret6; 724#recFINAL assume true; 722#recEXIT >#31#return; 706#L26-1 call write~int(main_#t~mem13 + main_#t~ret12, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~mem13;havoc main_#t~ret12; 707#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 716#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 702#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 708#recENTRY [2021-10-28 09:13:38,184 INFO L793 eck$LassoCheckResult]: Loop: 708#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 700#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 701#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 708#recENTRY [2021-10-28 09:13:38,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:38,184 INFO L85 PathProgramCache]: Analyzing trace with hash 770731142, now seen corresponding path program 2 times [2021-10-28 09:13:38,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:38,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233836437] [2021-10-28 09:13:38,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:38,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-10-28 09:13:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 09:13:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:13:38,636 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-28 09:13:38,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:13:38,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233836437] [2021-10-28 09:13:38,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233836437] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:38,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716208493] [2021-10-28 09:13:38,637 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 09:13:38,637 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 09:13:38,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:38,639 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 09:13:38,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-28 09:13:38,814 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 09:13:38,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 09:13:38,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 65 conjunts are in the unsatisfiable core [2021-10-28 09:13:38,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:13:38,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-10-28 09:13:38,834 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 09:13:38,862 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-10-28 09:13:38,863 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 15 treesize of output 15 [2021-10-28 09:13:38,874 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-10-28 09:13:38,875 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 11 treesize of output 11 [2021-10-28 09:13:39,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:39,602 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-10-28 09:13:39,603 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 54 treesize of output 41 [2021-10-28 09:13:39,706 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-10-28 09:13:39,707 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 52 treesize of output 35 [2021-10-28 09:13:40,254 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-28 09:13:40,255 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 34 treesize of output 18 [2021-10-28 09:13:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 09:13:40,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716208493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 09:13:40,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 09:13:40,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 32 [2021-10-28 09:13:40,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138939714] [2021-10-28 09:13:40,273 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 09:13:40,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:40,275 INFO L85 PathProgramCache]: Analyzing trace with hash 29943, now seen corresponding path program 2 times [2021-10-28 09:13:40,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:40,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124784206] [2021-10-28 09:13:40,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:40,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:40,288 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:40,295 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:40,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:13:40,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-28 09:13:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=889, Unknown=1, NotChecked=0, Total=992 [2021-10-28 09:13:40,785 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. cyclomatic complexity: 12 Second operand has 32 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 22 states have internal predecessors, (32), 5 states have call successors, (5), 3 states have call predecessors, (5), 8 states have return successors, (8), 8 states have call predecessors, (8), 4 states have call successors, (8) [2021-10-28 09:13:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:13:41,211 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2021-10-28 09:13:41,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 09:13:41,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 67 transitions. [2021-10-28 09:13:41,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:13:41,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 46 states and 58 transitions. [2021-10-28 09:13:41,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-10-28 09:13:41,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 09:13:41,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 58 transitions. [2021-10-28 09:13:41,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:13:41,217 INFO L681 BuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2021-10-28 09:13:41,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 58 transitions. [2021-10-28 09:13:41,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2021-10-28 09:13:41,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.103448275862069) internal successors, (32), 32 states have internal predecessors, (32), 8 states have call successors, (8), 5 states have call predecessors, (8), 6 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2021-10-28 09:13:41,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2021-10-28 09:13:41,224 INFO L704 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-10-28 09:13:41,224 INFO L587 BuchiCegarLoop]: Abstraction has 43 states and 52 transitions. [2021-10-28 09:13:41,224 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 09:13:41,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 52 transitions. [2021-10-28 09:13:41,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-28 09:13:41,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:13:41,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:13:41,227 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 09:13:41,227 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:13:41,228 INFO L791 eck$LassoCheckResult]: Stem: 982#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 983#L-1 havoc main_#res;havoc main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~nondet8, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~mem11, main_#t~mem13, main_#t~ret12, main_~op~0.base, main_~op~0.offset, main_#t~mem9, main_~ip~0.base, main_~ip~0.offset;call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnHeap(4);main_~ip~0.base, main_~ip~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;havoc main_#t~malloc7.base, main_#t~malloc7.offset;call write~int(main_#t~nondet8, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~nondet8; 998#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 999#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 996#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 995#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 997#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 989#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 994#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1015#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 988#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 994#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1015#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 988#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 994#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 1015#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 988#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 994#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 987#L9 assume #t~mem1 < 0;havoc #t~mem1;call #t~mem2 := read~int(~p.base, ~p.offset, 4);~pv~0 := #t~mem2;havoc #t~mem2;call ULTIMATE.dealloc(~p.base, ~p.offset);call ULTIMATE.dealloc(~up.base, ~up.offset);#res := ~pv~0; 990#recFINAL assume true; 1024#recEXIT >#29#return; 1005#L17-1 #res := #t~ret6;havoc #t~ret6; 1009#recFINAL assume true; 1023#recEXIT >#29#return; 1022#L17-1 #res := #t~ret6;havoc #t~ret6; 1021#recFINAL assume true; 1020#recEXIT >#29#return; 1014#L17-1 #res := #t~ret6;havoc #t~ret6; 1019#recFINAL assume true; 1013#recEXIT >#29#return; 1012#L17-1 #res := #t~ret6;havoc #t~ret6; 1011#recFINAL assume true; 1010#recEXIT >#31#return; 991#L26-1 call write~int(main_#t~mem13 + main_#t~ret12, main_~ip~0.base, main_~ip~0.offset, 4);havoc main_#t~mem13;havoc main_#t~ret12; 992#L23-3 call main_#t~mem9 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 1001#L23-1 assume !!(main_#t~mem9 > 1);havoc main_#t~mem9;call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnHeap(4);main_~op~0.base, main_~op~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;havoc main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~mem11 := read~int(main_~ip~0.base, main_~ip~0.offset, 4);call write~int(main_#t~mem11, main_~op~0.base, main_~op~0.offset, 4);havoc main_#t~mem11;call main_#t~mem13 := read~int(main_~ip~0.base, main_~ip~0.offset, 4); 986#L26 call main_#t~ret12 := rec(main_~op~0.base, main_~op~0.offset, main_~ip~0.base, main_~ip~0.offset);< 993#recENTRY [2021-10-28 09:13:41,228 INFO L793 eck$LassoCheckResult]: Loop: 993#recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~up.base, ~up.offset := #in~up.base, #in~up.offset;call #t~mem1 := read~int(~p.base, ~p.offset, 4); 984#L9 assume !(#t~mem1 < 0);havoc #t~mem1;call #t~malloc3.base, #t~malloc3.offset := #Ultimate.allocOnHeap(4);~upn~0.base, ~upn~0.offset := #t~malloc3.base, #t~malloc3.offset;havoc #t~malloc3.base, #t~malloc3.offset;call #t~mem4 := read~int(~p.base, ~p.offset, 4);#t~post5 := #t~mem4;call write~int(#t~post5 - 1, ~p.base, ~p.offset, 4);havoc #t~mem4;havoc #t~post5; 985#L17 call #t~ret6 := rec(~p.base, ~p.offset, ~upn~0.base, ~upn~0.offset);< 993#recENTRY [2021-10-28 09:13:41,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:41,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1655830132, now seen corresponding path program 3 times [2021-10-28 09:13:41,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:41,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894825925] [2021-10-28 09:13:41,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:41,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:41,270 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:41,317 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:41,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:41,318 INFO L85 PathProgramCache]: Analyzing trace with hash 29943, now seen corresponding path program 3 times [2021-10-28 09:13:41,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:41,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509010281] [2021-10-28 09:13:41,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:41,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:41,325 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:41,331 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:41,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:13:41,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1136068004, now seen corresponding path program 4 times [2021-10-28 09:13:41,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:13:41,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490318762] [2021-10-28 09:13:41,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:13:41,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:13:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:41,382 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:13:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:13:41,434 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:13:51,553 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:13:51,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:13:51,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:13:51,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:13:51,554 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:13:51,554 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:51,554 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:13:51,554 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:13:51,554 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_malloc_ex2.i_Iteration7_Lasso [2021-10-28 09:13:51,554 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:13:51,554 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:13:51,558 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 09:13:51,561 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 09:13:51,575 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 09:13:51,577 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 09:13:51,581 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 09:13:51,582 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 09:13:51,584 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 09:13:51,586 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 09:13:51,588 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 09:13:51,590 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 09:13:51,591 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 09:13:51,593 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 09:13:51,595 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 09:13:51,597 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 09:13:51,599 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 09:13:51,601 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 09:13:51,607 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 09:13:51,609 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 09:13:51,611 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 09:13:51,614 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 09:13:51,616 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 09:13:51,618 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 09:13:51,620 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 09:13:51,622 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 09:13:51,624 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 09:13:51,626 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 09:13:51,627 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 09:13:51,629 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 09:13:51,631 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 09:13:51,633 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 09:13:51,854 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 09:13:51,856 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 09:13:51,858 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 09:13:51,859 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 09:13:51,861 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 09:13:51,862 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 09:13:52,039 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2021-10-28 09:13:58,734 WARN L207 SmtUtils]: Spent 6.58 s on a formula simplification. DAG size of input: 174 DAG size of output: 174 [2021-10-28 09:13:58,834 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:13:58,834 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:13:58,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:58,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:58,842 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:58,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:13:58,845 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 09:13:58,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:58,852 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:58,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:58,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:58,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:58,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:58,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:58,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:58,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:58,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:58,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:58,908 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:58,912 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 09:13:58,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:58,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:58,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:58,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:58,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:58,924 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:58,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:58,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:13:58,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:58,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:58,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:58,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:58,974 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:58,977 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 09:13:58,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:58,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:58,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:58,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:58,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:58,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:58,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:58,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:13:59,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,043 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,047 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 09:13:59,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:59,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:59,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:13:59,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:13:59,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,083 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:13:59,085 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 09:13:59,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 09:13:59,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,116 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,119 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 09:13:59,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:13:59,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 09:13:59,150 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,151 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:13:59,153 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 09:13:59,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,160 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,160 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,187 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:13:59,188 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 09:13:59,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,197 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 09:13:59,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,220 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:13:59,221 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 09:13:59,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,229 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,229 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,230 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,252 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:13:59,254 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 09:13:59,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,262 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,283 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:13:59,285 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 09:13:59,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,293 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,294 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 09:13:59,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,315 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:13:59,316 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 09:13:59,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,324 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,324 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,326 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,346 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 09:13:59,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,356 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:13:59,358 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 09:13:59,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,367 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:59,367 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:59,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,390 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-28 09:13:59,390 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,391 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,396 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 09:13:59,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:13:59,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,427 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:13:59,428 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 09:13:59,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,436 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-28 09:13:59,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,458 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:13:59,460 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 09:13:59,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,493 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:13:59,494 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 09:13:59,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,503 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 09:13:59,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,525 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:13:59,526 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 09:13:59,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,534 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,534 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 09:13:59,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,560 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:13:59,561 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 09:13:59,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,568 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:59,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:59,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,596 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 09:13:59,598 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 09:13:59,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,605 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,605 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 09:13:59,631 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,632 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 09:13:59,634 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 09:13:59,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,643 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,665 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,666 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 09:13:59,669 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 09:13:59,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,678 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 09:13:59,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,701 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 09:13:59,703 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 09:13:59,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,713 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 09:13:59,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,736 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 09:13:59,738 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 09:13:59,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,746 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,746 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,747 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,775 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 09:13:59,777 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 09:13:59,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,785 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,785 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,786 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 09:13:59,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,810 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 09:13:59,811 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 09:13:59,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,820 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 09:13:59,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,844 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 09:13:59,845 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 09:13:59,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,853 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-10-28 09:13:59,876 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,877 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 09:13:59,879 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 09:13:59,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,915 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 09:13:59,946 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,946 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 09:13:59,948 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 09:13:59,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:13:59,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:13:59,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:13:59,962 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:13:59,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 09:13:59,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:13:59,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:13:59,983 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:13:59,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 09:13:59,984 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 09:13:59,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:13:59,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:13:59,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:13:59,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:13:59,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:13:59,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:13:59,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:14:00,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:00,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:14:00,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:00,018 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:14:00,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 09:14:00,020 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 09:14:00,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:14:00,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:14:00,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:14:00,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:14:00,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:14:00,029 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:14:00,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:14:00,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:00,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:14:00,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:00,074 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:14:00,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 09:14:00,084 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 09:14:00,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:14:00,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:14:00,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:14:00,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:14:00,094 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:14:00,094 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:14:00,101 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:14:00,110 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:14:00,111 INFO L444 ModelExtractionUtils]: 0 out of 16 variables were initially zero. Simplification set additionally 13 variables to zero. [2021-10-28 09:14:00,111 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:14:00,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:14:00,112 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:14:00,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 09:14:00,113 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:14:00,120 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 09:14:00,121 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:14:00,121 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2) = 2*v_rep(select (select #memory_int rec_#in~p.base) rec_#in~p.offset)_2 + 1 Supporting invariants [] [2021-10-28 09:14:00,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-28 09:14:00,149 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-10-28 09:14:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:00,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:14:00,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:00,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:00,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:14:00,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:00,923 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 36 treesize of output 20 [2021-10-28 09:14:00,941 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 09:14:00,943 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-28 09:14:00,943 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 13 Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:14:01,009 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 13. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 50 states and 59 transitions. Complement of second has 14 states. [2021-10-28 09:14:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 09:14:01,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:14:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-10-28 09:14:01,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 37 letters. Loop has 3 letters. [2021-10-28 09:14:01,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:14:01,011 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:14:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:01,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:14:01,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:01,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:01,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:14:01,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:01,799 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 36 treesize of output 20 [2021-10-28 09:14:01,822 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 09:14:01,823 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-28 09:14:01,824 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 13 Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:14:01,903 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 13. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 50 states and 59 transitions. Complement of second has 14 states. [2021-10-28 09:14:01,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 09:14:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:14:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-10-28 09:14:01,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 37 letters. Loop has 3 letters. [2021-10-28 09:14:01,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:14:01,906 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:14:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:14:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:01,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 09:14:02,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:14:02,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 09:14:02,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:14:02,681 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 36 treesize of output 20 [2021-10-28 09:14:02,702 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 09:14:02,703 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-28 09:14:02,703 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 13 Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:14:02,793 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43 states and 52 transitions. cyclomatic complexity: 13. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 63 states and 72 transitions. Complement of second has 15 states. [2021-10-28 09:14:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 09:14:02,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:14:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 20 transitions. [2021-10-28 09:14:02,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 37 letters. Loop has 3 letters. [2021-10-28 09:14:02,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:14:02,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 40 letters. Loop has 3 letters. [2021-10-28 09:14:02,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:14:02,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 20 transitions. Stem has 37 letters. Loop has 6 letters. [2021-10-28 09:14:02,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:14:02,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 72 transitions. [2021-10-28 09:14:02,802 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:14:02,802 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 0 states and 0 transitions. [2021-10-28 09:14:02,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:14:02,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:14:02,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:14:02,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:14:02,803 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:14:02,803 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:14:02,803 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:14:02,803 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 09:14:02,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:14:02,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:14:02,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:14:02,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:14:02 BoogieIcfgContainer [2021-10-28 09:14:02,810 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:14:02,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:14:02,810 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:14:02,810 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:14:02,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:13:25" (3/4) ... [2021-10-28 09:14:02,813 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:14:02,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:14:02,814 INFO L168 Benchmark]: Toolchain (without parser) took 38369.13 ms. Allocated memory was 92.3 MB in the beginning and 192.9 MB in the end (delta: 100.7 MB). Free memory was 67.7 MB in the beginning and 75.9 MB in the end (delta: -8.2 MB). Peak memory consumption was 91.8 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:02,814 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 63.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:02,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.42 ms. Allocated memory is still 92.3 MB. Free memory was 67.4 MB in the beginning and 67.5 MB in the end (delta: -117.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:02,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.66 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 66.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:02,816 INFO L168 Benchmark]: Boogie Preprocessor took 22.19 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 64.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:02,816 INFO L168 Benchmark]: RCFGBuilder took 313.38 ms. Allocated memory is still 92.3 MB. Free memory was 64.9 MB in the beginning and 54.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:02,817 INFO L168 Benchmark]: BuchiAutomizer took 37795.33 ms. Allocated memory was 92.3 MB in the beginning and 192.9 MB in the end (delta: 100.7 MB). Free memory was 54.7 MB in the beginning and 76.9 MB in the end (delta: -22.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:14:02,817 INFO L168 Benchmark]: Witness Printer took 3.29 ms. Allocated memory is still 192.9 MB. Free memory was 76.9 MB in the beginning and 75.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:14:02,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory is still 63.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 202.42 ms. Allocated memory is still 92.3 MB. Free memory was 67.4 MB in the beginning and 67.5 MB in the end (delta: -117.6 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.66 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 66.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.19 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 64.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 313.38 ms. Allocated memory is still 92.3 MB. Free memory was 64.9 MB in the beginning and 54.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 37795.33 ms. Allocated memory was 92.3 MB in the beginning and 192.9 MB in the end (delta: 100.7 MB). Free memory was 54.7 MB in the beginning and 76.9 MB in the end (delta: -22.2 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.29 ms. Allocated memory is still 192.9 MB. Free memory was 76.9 MB in the beginning and 75.9 MB in the end (delta: 1.0 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 7 terminating modules (4 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function unknown-#memory_int-unknown[ip][ip] and consists of 9 locations. One deterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 5 locations. One nondeterministic module has affine ranking function 2 * unknown-#memory_int-unknown[p][p] + 1 and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 32 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.7s and 8 iterations. TraceHistogramMax:5. Analysis of lassos took 32.7s. Construction of modules took 0.6s. Büchi inclusion checks took 4.1s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 43 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 30/30 HoareTripleCheckerStatistics: 82 SDtfs, 57 SDslu, 261 SDs, 0 SdLazy, 631 SolverSat, 65 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.6s Time LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital420 mio100 ax100 hnf100 lsp97 ukn44 mio100 lsp33 div100 bol100 ite100 ukn100 eq166 hnf95 smp100 dnf2624 smp78 tf100 neg84 sie158 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms 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 09:14:02,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:03,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:14:03,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 09:14:03,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ccd120a-9905-4b5a-9fe4-b1b56d690a69/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...