./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt --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 1a7013a4cfa859e3e95189f90d363983a25fcd0e ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:07:14,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:07:14,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:07:14,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:07:14,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:07:14,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:07:14,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:07:14,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:07:14,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:07:14,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:07:14,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:07:14,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:07:14,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:07:14,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:07:14,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:07:14,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:07:14,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:07:14,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:07:14,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:07:14,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:07:14,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:07:14,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:07:14,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:07:14,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:07:14,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:07:14,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:07:14,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:07:14,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:07:14,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:07:14,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:07:14,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:07:14,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:07:14,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:07:14,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:07:14,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:07:14,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:07:14,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:07:14,915 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:07:14,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:07:14,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:07:14,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:07:14,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:07:14,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:07:14,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:07:14,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:07:14,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:07:14,983 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:07:14,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:07:14,983 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:07:14,984 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:07:14,984 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:07:14,984 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:07:14,986 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:07:14,986 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:07:14,987 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:07:14,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:07:14,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:07:14,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:07:14,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:07:14,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:07:14,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:07:14,989 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:07:14,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:07:14,989 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:07:14,990 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:07:14,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:07:14,990 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:07:14,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:07:14,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:07:14,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:07:14,993 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:07:14,995 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:07:14,995 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_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a7013a4cfa859e3e95189f90d363983a25fcd0e [2021-10-13 00:07:15,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:07:15,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:07:15,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:07:15,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:07:15,329 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:07:15,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-10-13 00:07:15,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/data/49c335464/060b91345bef4748b80ed70451624346/FLAGb6e050dd5 [2021-10-13 00:07:16,096 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:07:16,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/sv-benchmarks/c/termination-memory-alloca/twisted-alloca.i [2021-10-13 00:07:16,120 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/data/49c335464/060b91345bef4748b80ed70451624346/FLAGb6e050dd5 [2021-10-13 00:07:16,384 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/data/49c335464/060b91345bef4748b80ed70451624346 [2021-10-13 00:07:16,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:07:16,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:07:16,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:16,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:07:16,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:07:16,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ef62d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16, skipping insertion in model container [2021-10-13 00:07:16,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:07:16,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:07:16,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:16,817 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:07:16,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:07:16,893 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:07:16,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16 WrapperNode [2021-10-13 00:07:16,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:07:16,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:07:16,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:07:16,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:07:16,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:07:16,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:07:16,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:07:16,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:07:16,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:07:16,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:07:16,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:07:16,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:07:16,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (1/1) ... [2021-10-13 00:07:16,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:17,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:17,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:17,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:07:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:07:17,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:07:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:07:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:07:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:07:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:07:17,474 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:07:17,474 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 00:07:17,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:17 BoogieIcfgContainer [2021-10-13 00:07:17,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:07:17,478 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:07:17,478 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:07:17,482 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:07:17,483 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:07:17,483 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:07:16" (1/3) ... [2021-10-13 00:07:17,485 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@463a8591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:07:17, skipping insertion in model container [2021-10-13 00:07:17,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:07:17,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:07:16" (2/3) ... [2021-10-13 00:07:17,486 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@463a8591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:07:17, skipping insertion in model container [2021-10-13 00:07:17,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:07:17,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:17" (3/3) ... [2021-10-13 00:07:17,488 INFO L389 chiAutomizerObserver]: Analyzing ICFG twisted-alloca.i [2021-10-13 00:07:17,541 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:07:17,541 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:07:17,542 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:07:17,542 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:07:17,542 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:07:17,542 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:07:17,542 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:07:17,543 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:07:17,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:17,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 00:07:17,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:17,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:17,589 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:07:17,590 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:07:17,590 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:07:17,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:17,609 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 00:07:17,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:17,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:17,610 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:07:17,610 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-10-13 00:07:17,632 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 3#L569true [2021-10-13 00:07:17,633 INFO L793 eck$LassoCheckResult]: Loop: 3#L569true assume !true; 13#L564true goto; 12#L567true call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 8#L564-1true assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 10#L566true assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 3#L569true [2021-10-13 00:07:17,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:17,640 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 00:07:17,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:17,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953905067] [2021-10-13 00:07:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:17,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:17,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:17,891 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:18,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:18,016 INFO L82 PathProgramCache]: Analyzing trace with hash 46885240, now seen corresponding path program 1 times [2021-10-13 00:07:18,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:18,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679590490] [2021-10-13 00:07:18,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:18,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:18,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:18,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679590490] [2021-10-13 00:07:18,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679590490] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:18,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:18,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 00:07:18,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181462] [2021-10-13 00:07:18,100 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:07:18,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:18,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:07:18,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:07:18,122 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 1 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:18,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:18,129 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-10-13 00:07:18,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:07:18,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-13 00:07:18,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 00:07:18,137 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2021-10-13 00:07:18,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-13 00:07:18,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-13 00:07:18,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-13 00:07:18,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:07:18,140 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-13 00:07:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-13 00:07:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-13 00:07:18,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:18,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-13 00:07:18,171 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-13 00:07:18,172 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-13 00:07:18,172 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:07:18,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-13 00:07:18,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-13 00:07:18,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:18,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:18,174 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 00:07:18,174 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:18,174 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 41#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 38#L569 [2021-10-13 00:07:18,174 INFO L793 eck$LassoCheckResult]: Loop: 38#L569 goto; 39#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 44#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 43#L564 goto; 45#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 46#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 47#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 38#L569 [2021-10-13 00:07:18,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:18,175 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-10-13 00:07:18,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:18,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269040710] [2021-10-13 00:07:18,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:18,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,255 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:18,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:18,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1311753714, now seen corresponding path program 1 times [2021-10-13 00:07:18,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:18,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713663111] [2021-10-13 00:07:18,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:18,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,358 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,381 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:18,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:18,391 INFO L82 PathProgramCache]: Analyzing trace with hash 234543116, now seen corresponding path program 1 times [2021-10-13 00:07:18,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:18,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310659533] [2021-10-13 00:07:18,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:18,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,462 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:18,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:19,977 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:07:19,979 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:07:19,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:07:19,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:07:19,985 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:07:19,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:19,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:07:19,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:07:19,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration2_Lasso [2021-10-13 00:07:19,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:07:19,986 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:07:20,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:20,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:21,615 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:07:21,620 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:07:21,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:21,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:21,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:21,630 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 [2021-10-13 00:07:21,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:21,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:21,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:21,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:21,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:21,644 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:21,644 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:21,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:07:21,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:21,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:21,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:21,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:21,698 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:21,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:07:21,705 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 [2021-10-13 00:07:21,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:21,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:21,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:21,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:21,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:21,719 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:21,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:21,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:21,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:21,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:21,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:21,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:21,771 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 [2021-10-13 00:07:21,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:21,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:21,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:21,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:21,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:21,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:21,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:21,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:07:21,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:21,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:21,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:21,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:21,840 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:21,846 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 [2021-10-13 00:07:21,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:07:21,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:21,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:21,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:21,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:21,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:21,878 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:21,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:21,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:21,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:21,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:21,943 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:21,951 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 [2021-10-13 00:07:21,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:21,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:21,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:21,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:21,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:21,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:21,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:07:21,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:22,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:22,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:22,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:22,033 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:22,042 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 [2021-10-13 00:07:22,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:22,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:22,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:22,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:22,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:07:22,060 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:22,061 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:22,078 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:22,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-13 00:07:22,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:22,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:22,122 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:22,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:07:22,126 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 [2021-10-13 00:07:22,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:22,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:22,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:22,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:22,147 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:22,147 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:22,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:22,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-13 00:07:22,209 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:22,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:22,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:22,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:07:22,223 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 [2021-10-13 00:07:22,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:22,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:22,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:22,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:22,259 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:22,259 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:22,280 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:22,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:22,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:22,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:22,324 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:22,330 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 [2021-10-13 00:07:22,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:22,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:22,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:22,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:22,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:22,342 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:22,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:07:22,364 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:22,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:22,415 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:22,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:22,417 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:22,428 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 [2021-10-13 00:07:22,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:22,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:22,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:22,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:22,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:22,447 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:22,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:07:22,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:07:22,499 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 00:07:22,499 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-13 00:07:22,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:22,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:22,516 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:22,555 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:07:22,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:07:22,580 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:07:22,580 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:07:22,581 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1) = -2*v_rep(select (select #memory_int ULTIMATE.start_f_~j~0.base) ULTIMATE.start_f_~j~0.offset)_1 + 1 Supporting invariants [] [2021-10-13 00:07:22,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:22,900 INFO L297 tatePredicateManager]: 41 out of 41 supporting invariants were superfluous and have been removed [2021-10-13 00:07:22,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:22,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:22,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:23,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:07:23,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:23,150 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 [2021-10-13 00:07:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:23,177 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 [2021-10-13 00:07:23,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:23,228 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 27 transitions. Complement of second has 6 states. [2021-10-13 00:07:23,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:07:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:23,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-13 00:07:23,232 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 7 letters. [2021-10-13 00:07:23,234 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:23,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 7 letters. [2021-10-13 00:07:23,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:23,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 2 letters. Loop has 14 letters. [2021-10-13 00:07:23,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:23,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 27 transitions. [2021-10-13 00:07:23,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:23,240 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 21 transitions. [2021-10-13 00:07:23,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 00:07:23,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-13 00:07:23,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2021-10-13 00:07:23,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:23,240 INFO L681 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2021-10-13 00:07:23,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2021-10-13 00:07:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-10-13 00:07:23,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-10-13 00:07:23,243 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-13 00:07:23,243 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-10-13 00:07:23,244 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:07:23,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2021-10-13 00:07:23,245 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:23,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:23,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:23,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:07:23,245 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:07:23,245 INFO L791 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 288#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 297#L569 goto; 284#L560 [2021-10-13 00:07:23,246 INFO L793 eck$LassoCheckResult]: Loop: 284#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 292#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 289#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 284#L560 [2021-10-13 00:07:23,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:23,246 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-10-13 00:07:23,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:23,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005668689] [2021-10-13 00:07:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:23,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:23,273 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:23,299 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:23,300 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 1 times [2021-10-13 00:07:23,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:23,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794070588] [2021-10-13 00:07:23,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:23,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:23,310 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:23,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:23,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:23,349 INFO L82 PathProgramCache]: Analyzing trace with hash 889536583, now seen corresponding path program 1 times [2021-10-13 00:07:23,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:23,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500492444] [2021-10-13 00:07:23,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:23,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:23,384 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:23,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:23,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:23,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:24,690 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:07:24,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:07:24,690 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:07:24,690 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:07:24,690 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:07:24,690 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:24,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:07:24,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:07:24,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration3_Lasso [2021-10-13 00:07:24,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:07:24,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:07:24,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:24,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:24,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,296 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:25,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:07:25,875 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:07:25,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:25,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:25,883 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:25,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:07:25,885 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 [2021-10-13 00:07:25,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:25,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:25,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:25,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:25,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:25,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:25,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:25,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:25,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:25,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:25,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:25,917 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:25,918 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 [2021-10-13 00:07:25,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:07:25,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:25,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:25,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:25,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:25,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:25,927 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:25,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:25,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:25,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:25,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:25,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:25,949 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:25,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:07:25,953 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 [2021-10-13 00:07:25,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:25,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:25,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:25,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:25,967 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:25,967 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:25,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,039 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,045 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 [2021-10-13 00:07:26,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:07:26,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,064 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,082 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,127 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:07:26,135 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 [2021-10-13 00:07:26,149 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,211 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,213 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,219 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 [2021-10-13 00:07:26,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:07:26,250 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,281 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:07:26,283 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 [2021-10-13 00:07:26,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,294 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,297 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-13 00:07:26,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,323 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:07:26,326 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 [2021-10-13 00:07:26,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,358 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,381 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:07:26,383 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 [2021-10-13 00:07:26,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,399 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,467 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,471 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 [2021-10-13 00:07:26,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,486 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,486 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:07:26,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,535 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,538 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 [2021-10-13 00:07:26,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:07:26,564 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,607 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,611 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 [2021-10-13 00:07:26,622 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,624 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,624 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:07:26,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:26,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,683 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,685 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 [2021-10-13 00:07:26,697 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:26,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:26,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:26,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:26,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:26,704 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:26,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:07:26,726 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:07:26,741 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 00:07:26,741 INFO L444 ModelExtractionUtils]: 13 out of 19 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-13 00:07:26,741 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:26,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:26,742 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:26,744 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:07:26,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:07:26,779 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:07:26,779 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:07:26,779 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2, v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2) = -1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_2 + 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_2 Supporting invariants [] [2021-10-13 00:07:26,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:26,967 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-10-13 00:07:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:27,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:07:27,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:27,074 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-13 00:07:27,074 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 42 treesize of output 34 [2021-10-13 00:07:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:27,108 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 [2021-10-13 00:07:27,108 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:27,139 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 34 states and 43 transitions. Complement of second has 7 states. [2021-10-13 00:07:27,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:07:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-13 00:07:27,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-13 00:07:27,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:27,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-13 00:07:27,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:27,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-13 00:07:27,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:27,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2021-10-13 00:07:27,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:27,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 31 transitions. [2021-10-13 00:07:27,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-13 00:07:27,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:07:27,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-10-13 00:07:27,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:27,154 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-13 00:07:27,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-10-13 00:07:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2021-10-13 00:07:27,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 20 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-10-13 00:07:27,157 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-13 00:07:27,157 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-13 00:07:27,157 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:07:27,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2021-10-13 00:07:27,158 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:27,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:27,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:27,160 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:27,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:07:27,161 INFO L791 eck$LassoCheckResult]: Stem: 523#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 524#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 519#L569 goto; 520#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 536#L557-1 assume !(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7; 528#L564 goto; 533#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 534#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 535#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 537#L569 goto; 526#L560 [2021-10-13 00:07:27,161 INFO L793 eck$LassoCheckResult]: Loop: 526#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 531#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 525#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 526#L560 [2021-10-13 00:07:27,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:27,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1319097990, now seen corresponding path program 2 times [2021-10-13 00:07:27,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:27,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114446394] [2021-10-13 00:07:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:27,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:27,183 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:27,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:27,205 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:27,206 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 2 times [2021-10-13 00:07:27,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:27,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892445883] [2021-10-13 00:07:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:27,207 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:27,214 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:27,221 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:27,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:27,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1702545424, now seen corresponding path program 1 times [2021-10-13 00:07:27,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:27,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594550395] [2021-10-13 00:07:27,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:27,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:27,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:27,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594550395] [2021-10-13 00:07:27,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594550395] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:07:27,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054060691] [2021-10-13 00:07:27,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:27,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:07:27,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:27,427 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:07:27,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-13 00:07:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:27,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-13 00:07:27,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:27,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-13 00:07:27,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:27,769 INFO L354 Elim1Store]: treesize reduction 88, result has 14.6 percent of original size [2021-10-13 00:07:27,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 35 [2021-10-13 00:07:27,818 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 00:07:27,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 22 [2021-10-13 00:07:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:27,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054060691] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:07:27,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:07:27,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-10-13 00:07:27,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137558028] [2021-10-13 00:07:27,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 00:07:27,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-13 00:07:27,936 INFO L87 Difference]: Start difference. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:28,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:28,103 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2021-10-13 00:07:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:07:28,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 51 transitions. [2021-10-13 00:07:28,106 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:28,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 20 states and 24 transitions. [2021-10-13 00:07:28,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-13 00:07:28,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:07:28,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2021-10-13 00:07:28,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:28,107 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-10-13 00:07:28,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2021-10-13 00:07:28,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-10-13 00:07:28,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2021-10-13 00:07:28,110 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-13 00:07:28,110 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2021-10-13 00:07:28,110 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:07:28,110 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2021-10-13 00:07:28,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:28,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:28,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:28,112 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:28,112 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:07:28,112 INFO L791 eck$LassoCheckResult]: Stem: 644#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 645#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 641#L569 goto; 642#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 653#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 648#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 649#L564 goto; 654#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 650#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 651#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 655#L569 goto; 647#L560 [2021-10-13 00:07:28,113 INFO L793 eck$LassoCheckResult]: Loop: 647#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 652#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 646#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 647#L560 [2021-10-13 00:07:28,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:28,113 INFO L82 PathProgramCache]: Analyzing trace with hash -635175977, now seen corresponding path program 1 times [2021-10-13 00:07:28,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:28,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929334435] [2021-10-13 00:07:28,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:28,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:28,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:28,220 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:28,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929334435] [2021-10-13 00:07:28,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929334435] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:07:28,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:07:28,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:07:28,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119678458] [2021-10-13 00:07:28,221 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:07:28,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:28,222 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 3 times [2021-10-13 00:07:28,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:28,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433719454] [2021-10-13 00:07:28,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:28,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,229 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,236 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:28,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:28,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:07:28,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:07:28,318 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:28,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:28,343 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-13 00:07:28,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:07:28,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2021-10-13 00:07:28,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:28,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 21 transitions. [2021-10-13 00:07:28,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-13 00:07:28,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:07:28,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-10-13 00:07:28,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:28,345 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-13 00:07:28,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-10-13 00:07:28,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-13 00:07:28,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-13 00:07:28,347 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-13 00:07:28,347 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-13 00:07:28,347 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:07:28,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-10-13 00:07:28,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:28,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:28,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:28,349 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:28,350 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:07:28,350 INFO L791 eck$LassoCheckResult]: Stem: 686#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 687#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 682#L569 goto; 683#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 695#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 690#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 685#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 699#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 698#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 696#L564 goto; 691#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 692#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 693#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 697#L569 goto; 689#L560 [2021-10-13 00:07:28,350 INFO L793 eck$LassoCheckResult]: Loop: 689#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 694#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 688#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 689#L560 [2021-10-13 00:07:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:28,351 INFO L82 PathProgramCache]: Analyzing trace with hash 184869755, now seen corresponding path program 1 times [2021-10-13 00:07:28,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:28,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837853673] [2021-10-13 00:07:28,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:28,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,382 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,416 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:28,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:28,417 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 4 times [2021-10-13 00:07:28,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:28,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645516882] [2021-10-13 00:07:28,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:28,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,424 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,435 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:28,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:28,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1306804847, now seen corresponding path program 2 times [2021-10-13 00:07:28,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:28,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885480047] [2021-10-13 00:07:28,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:28,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,488 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:28,549 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:31,424 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:07:31,424 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:07:31,424 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:07:31,424 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:07:31,424 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:07:31,424 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:31,424 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:07:31,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:07:31,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: twisted-alloca.i_Iteration6_Lasso [2021-10-13 00:07:31,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:07:31,425 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:07:31,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:31,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:31,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:31,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:31,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:31,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:31,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:07:32,727 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:07:32,727 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:07:32,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:32,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,740 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:07:32,743 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 [2021-10-13 00:07:32,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:32,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:32,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:32,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:32,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:32,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:32,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:32,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:32,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:32,805 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:32,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,806 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,812 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:07:32,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:32,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:32,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:32,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:32,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:32,835 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:32,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:07:32,854 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:32,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-13 00:07:32,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:32,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,882 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:07:32,884 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 [2021-10-13 00:07:32,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:32,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:32,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:32,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:32,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:32,892 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:32,892 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:32,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:32,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-13 00:07:32,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:32,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,914 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:07:32,916 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 [2021-10-13 00:07:32,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:32,923 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:32,923 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:32,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:32,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:32,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:32,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:32,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:32,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-13 00:07:32,943 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:32,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,944 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:07:32,946 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 [2021-10-13 00:07:32,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:32,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:32,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:32,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:32,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:32,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:32,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:32,955 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:32,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:32,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:32,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:32,977 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:32,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:07:32,980 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 [2021-10-13 00:07:32,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:32,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:07:32,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:32,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:32,988 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:32,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:07:32,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:07:32,989 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,012 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:07:33,013 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 [2021-10-13 00:07:33,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,024 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-13 00:07:33,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,058 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:07:33,060 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 [2021-10-13 00:07:33,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,080 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,080 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,106 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,149 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,155 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 [2021-10-13 00:07:33,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,169 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:07:33,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-13 00:07:33,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,199 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:07:33,201 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 [2021-10-13 00:07:33,208 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,209 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,209 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,209 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,217 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,217 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,222 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-13 00:07:33,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,244 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:07:33,246 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 [2021-10-13 00:07:33,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,257 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,272 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-13 00:07:33,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,294 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:07:33,297 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 [2021-10-13 00:07:33,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,327 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,328 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:07:33,330 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 [2021-10-13 00:07:33,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,337 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,337 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,337 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,362 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,364 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 [2021-10-13 00:07:33,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:07:33,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,404 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:07:33,405 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 [2021-10-13 00:07:33,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,416 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,417 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:07:33,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:33,445 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,446 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:07:33,453 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 [2021-10-13 00:07:33,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:07:33,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:07:33,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:07:33,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:07:33,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:07:33,467 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:07:33,477 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:07:33,486 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-13 00:07:33,486 INFO L444 ModelExtractionUtils]: 14 out of 19 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-13 00:07:33,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:07:33,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:33,487 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:07:33,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:07:33,489 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:07:33,499 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 00:07:33,499 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:07:33,500 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3, v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3) = 1*v_rep(select (select #memory_int ULTIMATE.start_f_~k_ref~0.base) ULTIMATE.start_f_~k_ref~0.offset)_3 - 1*v_rep(select (select #memory_int ULTIMATE.start_f_~i~0.base) ULTIMATE.start_f_~i~0.offset)_3 Supporting invariants [] [2021-10-13 00:07:33,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-13 00:07:33,640 INFO L297 tatePredicateManager]: 36 out of 36 supporting invariants were superfluous and have been removed [2021-10-13 00:07:33,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:33,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:33,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:33,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:33,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:07:33,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:33,813 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-13 00:07:33,813 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 42 treesize of output 34 [2021-10-13 00:07:33,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:33,848 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 [2021-10-13 00:07:33,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:33,869 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 7 states. [2021-10-13 00:07:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:07:33,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:33,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-13 00:07:33,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-13 00:07:33,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:33,871 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:07:33,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:33,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:07:33,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:33,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:07:33,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:34,038 INFO L354 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2021-10-13 00:07:34,039 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 42 treesize of output 34 [2021-10-13 00:07:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:34,116 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:07:34,116 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:34,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:34,153 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 51 states and 59 transitions. Complement of second has 9 states. [2021-10-13 00:07:34,154 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 [2021-10-13 00:07:34,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:34,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2021-10-13 00:07:34,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2021-10-13 00:07:34,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:34,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2021-10-13 00:07:34,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:34,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-13 00:07:34,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:07:34,156 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 59 transitions. [2021-10-13 00:07:34,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:34,157 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 37 states and 43 transitions. [2021-10-13 00:07:34,157 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-13 00:07:34,158 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:07:34,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 43 transitions. [2021-10-13 00:07:34,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:07:34,158 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-10-13 00:07:34,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 43 transitions. [2021-10-13 00:07:34,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-10-13 00:07:34,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 34 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:34,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2021-10-13 00:07:34,161 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-13 00:07:34,161 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 41 transitions. [2021-10-13 00:07:34,161 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:07:34,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 41 transitions. [2021-10-13 00:07:34,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 00:07:34,162 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:07:34,162 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:07:34,163 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:07:34,163 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:07:34,163 INFO L791 eck$LassoCheckResult]: Stem: 1069#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1070#L-1 havoc main_#res;havoc main_#t~nondet17, main_#t~nondet18, main_#t~ret19;f_#in~k, f_#in~l := main_#t~nondet17, main_#t~nondet18;havoc f_#res;havoc f_#t~malloc2.base, f_#t~malloc2.offset, f_#t~malloc3.base, f_#t~malloc3.offset, f_#t~malloc4.base, f_#t~malloc4.offset, f_#t~malloc5.base, f_#t~malloc5.offset, f_#t~mem8, f_#t~post9, f_#t~mem10, f_#t~mem6, f_#t~mem7, f_#t~mem12, f_#t~post13, f_#t~mem14, f_#t~mem11, f_#t~mem15, f_#t~mem16, f_~k, f_~l, f_~k_ref~0.base, f_~k_ref~0.offset, f_~l_ref~0.base, f_~l_ref~0.offset, f_~i~0.base, f_~i~0.offset, f_~j~0.base, f_~j~0.offset;f_~k := f_#in~k;f_~l := f_#in~l;call f_#t~malloc2.base, f_#t~malloc2.offset := #Ultimate.allocOnStack(4);f_~k_ref~0.base, f_~k_ref~0.offset := f_#t~malloc2.base, f_#t~malloc2.offset;call f_#t~malloc3.base, f_#t~malloc3.offset := #Ultimate.allocOnStack(4);f_~l_ref~0.base, f_~l_ref~0.offset := f_#t~malloc3.base, f_#t~malloc3.offset;call f_#t~malloc4.base, f_#t~malloc4.offset := #Ultimate.allocOnStack(4);f_~i~0.base, f_~i~0.offset := f_#t~malloc4.base, f_#t~malloc4.offset;call f_#t~malloc5.base, f_#t~malloc5.offset := #Ultimate.allocOnStack(4);f_~j~0.base, f_~j~0.offset := f_#t~malloc5.base, f_#t~malloc5.offset;call write~int(f_~k, f_~k_ref~0.base, f_~k_ref~0.offset, 4);call write~int(f_~l, f_~l_ref~0.base, f_~l_ref~0.offset, 4);call write~int(0, f_~i~0.base, f_~i~0.offset, 4);call write~int(0, f_~j~0.base, f_~j~0.offset, 4); 1065#L569 goto; 1066#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1080#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1073#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1074#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1082#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1083#L559 assume !(0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2));havoc f_#t~mem10; 1096#L564 goto; 1094#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1077#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1078#L566 assume 0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2);havoc f_#t~mem14; 1088#L567 call f_#t~mem11 := read~int(f_~j~0.base, f_~j~0.offset, 4); 1090#L564-1 assume !!(f_#t~mem11 < 1);havoc f_#t~mem11;call f_#t~mem12 := read~int(f_~j~0.base, f_~j~0.offset, 4);f_#t~post13 := f_#t~mem12;call write~int(1 + f_#t~post13, f_~j~0.base, f_~j~0.offset, 4);havoc f_#t~mem12;havoc f_#t~post13;call f_#t~mem14 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1087#L566 assume !(0 != (if f_#t~mem14 < 0 && 0 != f_#t~mem14 % 2 then f_#t~mem14 % 2 - 2 else f_#t~mem14 % 2));havoc f_#t~mem14; 1086#L569 goto; 1072#L560 [2021-10-13 00:07:34,163 INFO L793 eck$LassoCheckResult]: Loop: 1072#L560 call f_#t~mem6 := read~int(f_~i~0.base, f_~i~0.offset, 4);call f_#t~mem7 := read~int(f_~k_ref~0.base, f_~k_ref~0.offset, 4); 1079#L557-1 assume !!(f_#t~mem6 < f_#t~mem7);havoc f_#t~mem6;havoc f_#t~mem7;call f_#t~mem8 := read~int(f_~i~0.base, f_~i~0.offset, 4);f_#t~post9 := f_#t~mem8;call write~int(1 + f_#t~post9, f_~i~0.base, f_~i~0.offset, 4);havoc f_#t~mem8;havoc f_#t~post9;call f_#t~mem10 := read~int(f_~i~0.base, f_~i~0.offset, 4); 1071#L559 assume 0 != (if f_#t~mem10 < 0 && 0 != f_#t~mem10 % 2 then f_#t~mem10 % 2 - 2 else f_#t~mem10 % 2);havoc f_#t~mem10; 1072#L560 [2021-10-13 00:07:34,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:34,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1305515858, now seen corresponding path program 1 times [2021-10-13 00:07:34,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:34,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569266588] [2021-10-13 00:07:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:34,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:34,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-13 00:07:34,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:07:34,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569266588] [2021-10-13 00:07:34,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569266588] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:07:34,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053415703] [2021-10-13 00:07:34,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:34,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:07:34,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:07:34,268 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:07:34,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-13 00:07:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:07:34,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:07:34,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:07:34,480 INFO L354 Elim1Store]: treesize reduction 132, result has 30.9 percent of original size [2021-10-13 00:07:34,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 123 treesize of output 66 [2021-10-13 00:07:34,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-10-13 00:07:34,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-13 00:07:34,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-13 00:07:34,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-10-13 00:07:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:07:34,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053415703] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:07:34,769 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:07:34,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-10-13 00:07:34,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375151353] [2021-10-13 00:07:34,773 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:07:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:07:34,774 INFO L82 PathProgramCache]: Analyzing trace with hash 36905, now seen corresponding path program 5 times [2021-10-13 00:07:34,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:07:34,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165147748] [2021-10-13 00:07:34,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:07:34,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:07:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:34,793 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:07:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:07:34,805 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:34,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:07:34,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:07:34,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:07:34,911 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. cyclomatic complexity: 10 Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:07:35,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:07:35,024 INFO L93 Difference]: Finished difference Result 52 states and 57 transitions. [2021-10-13 00:07:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 00:07:35,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 57 transitions. [2021-10-13 00:07:35,025 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:07:35,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 0 states and 0 transitions. [2021-10-13 00:07:35,026 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:07:35,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:07:35,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:07:35,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:07:35,026 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:07:35,026 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:07:35,027 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:07:35,027 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:07:35,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:07:35,027 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:07:35,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:07:35,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:07:35 BoogieIcfgContainer [2021-10-13 00:07:35,034 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:07:35,034 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:07:35,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:07:35,035 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:07:35,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:07:17" (3/4) ... [2021-10-13 00:07:35,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:07:35,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:07:35,040 INFO L168 Benchmark]: Toolchain (without parser) took 18651.19 ms. Allocated memory was 96.5 MB in the beginning and 199.2 MB in the end (delta: 102.8 MB). Free memory was 61.8 MB in the beginning and 99.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,040 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:35,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.85 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 65.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.21 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 63.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,041 INFO L168 Benchmark]: Boogie Preprocessor took 29.18 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 62.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:35,042 INFO L168 Benchmark]: RCFGBuilder took 499.17 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 50.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,043 INFO L168 Benchmark]: BuchiAutomizer took 17556.23 ms. Allocated memory was 96.5 MB in the beginning and 199.2 MB in the end (delta: 102.8 MB). Free memory was 50.8 MB in the beginning and 101.0 MB in the end (delta: -50.2 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:07:35,043 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 199.2 MB. Free memory was 101.0 MB in the beginning and 99.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:07:35,046 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 52.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.85 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 65.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.21 ms. Allocated memory is still 96.5 MB. Free memory was 65.5 MB in the beginning and 63.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.18 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 62.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 499.17 ms. Allocated memory is still 96.5 MB. Free memory was 62.3 MB in the beginning and 50.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 17556.23 ms. Allocated memory was 96.5 MB in the beginning and 199.2 MB in the end (delta: 102.8 MB). Free memory was 50.8 MB in the beginning and 101.0 MB in the end (delta: -50.2 MB). Peak memory consumption was 55.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.38 ms. Allocated memory is still 199.2 MB. Free memory was 101.0 MB in the beginning and 99.9 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, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * unknown-#memory_int-unknown[j][j] + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 4 locations. One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[i][i] + unknown-#memory_int-unknown[k_ref][k_ref] and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 17.5s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 15.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 27.1ms AutomataMinimizationTime, 6 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 35 states and ocurred in iteration 6. Nontrivial modules had stage [2, 1, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 78 SDtfs, 68 SDslu, 153 SDs, 0 SdLazy, 191 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 206.8ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU2 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital866 mio100 ax103 hnf100 lsp95 ukn41 mio100 lsp33 div106 bol100 ite100 ukn100 eq188 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 58ms VariablesStem: 5 VariablesLoop: 6 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! [2021-10-13 00:07:35,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:35,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:07:35,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_710f174a-4bd9-4c36-8ec4-46e608537de6/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...