./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/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_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/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 32bit --witnessprinter.graph.data.programhash 6e748b563bb7a11726b28f7957ce1a00b7c8807b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:17:21,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:17:21,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:17:21,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:17:21,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:17:21,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:17:21,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:17:21,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:17:21,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:17:21,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:17:21,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:17:21,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:17:21,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:17:21,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:17:21,800 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:17:21,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:17:21,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:17:21,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:17:21,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:17:21,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:17:21,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:17:21,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:17:21,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:17:21,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:17:21,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:17:21,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:17:21,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:17:21,847 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:17:21,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:17:21,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:17:21,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:17:21,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:17:21,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:17:21,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:17:21,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:17:21,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:17:21,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:17:21,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:17:21,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:17:21,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:17:21,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:17:21,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:17:21,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:17:21,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:17:21,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:17:21,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:17:21,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:17:21,921 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:17:21,922 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:17:21,922 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:17:21,922 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:17:21,922 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:17:21,924 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:17:21,924 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:17:21,924 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:17:21,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:17:21,925 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:17:21,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:17:21,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:17:21,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:17:21,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:17:21,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:17:21,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:17:21,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:17:21,927 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:17:21,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:17:21,927 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:17:21,927 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:17:21,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:17:21,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:17:21,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:17:21,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:17:21,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:17:21,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:17:21,933 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:17:21,933 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_63e52745-4331-4c41-95b4-1a6f9f944513/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e748b563bb7a11726b28f7957ce1a00b7c8807b [2021-10-13 01:17:22,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:17:22,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:17:22,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:17:22,258 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:17:22,260 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:17:22,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2021-10-13 01:17:22,334 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/data/3f169a493/51b214f032fa4d539a89748fc1a9c871/FLAGde161c57c [2021-10-13 01:17:22,917 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:17:22,918 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2021-10-13 01:17:22,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/data/3f169a493/51b214f032fa4d539a89748fc1a9c871/FLAGde161c57c [2021-10-13 01:17:23,202 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/data/3f169a493/51b214f032fa4d539a89748fc1a9c871 [2021-10-13 01:17:23,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:17:23,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:17:23,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:17:23,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:17:23,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:17:23,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b0042c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23, skipping insertion in model container [2021-10-13 01:17:23,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:17:23,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:17:23,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:17:23,778 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:17:23,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:17:23,889 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:17:23,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23 WrapperNode [2021-10-13 01:17:23,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:17:23,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:17:23,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:17:23,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:17:23,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:17:23,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:17:23,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:17:23,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:17:23,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:23,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:24,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:24,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:24,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:17:24,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:17:24,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:17:24,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:17:24,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (1/1) ... [2021-10-13 01:17:24,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:24,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:24,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:24,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:17:24,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 01:17:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 01:17:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:17:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 01:17:24,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:17:24,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:17:24,527 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:17:24,527 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 01:17:24,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:24 BoogieIcfgContainer [2021-10-13 01:17:24,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:17:24,531 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:17:24,531 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:17:24,535 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:17:24,535 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:24,536 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:17:23" (1/3) ... [2021-10-13 01:17:24,537 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8866cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:17:24, skipping insertion in model container [2021-10-13 01:17:24,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:24,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:17:23" (2/3) ... [2021-10-13 01:17:24,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e8866cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:17:24, skipping insertion in model container [2021-10-13 01:17:24,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:17:24,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:24" (3/3) ... [2021-10-13 01:17:24,540 INFO L389 chiAutomizerObserver]: Analyzing ICFG substring-alloca-2.i [2021-10-13 01:17:24,583 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:17:24,583 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:17:24,584 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:17:24,584 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:17:24,584 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:17:24,584 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:17:24,584 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:17:24,584 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:17:24,599 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 01:17:24,618 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2021-10-13 01:17:24,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:24,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:24,625 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:17:24,625 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:24,625 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:17:24,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 01:17:24,628 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2021-10-13 01:17:24,628 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:24,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:24,629 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-13 01:17:24,629 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:24,654 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~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 11#L532true assume !(main_~length1~0 < 1); 8#L532-2true assume !(main_~length2~0 < 1); 3#L535-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 18#L541-3true [2021-10-13 01:17:24,654 INFO L793 eck$LassoCheckResult]: Loop: 18#L541-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 23#L541-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 18#L541-3true [2021-10-13 01:17:24,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:24,660 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2021-10-13 01:17:24,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:24,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979898253] [2021-10-13 01:17:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:24,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:24,806 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:24,873 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:24,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:24,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2021-10-13 01:17:24,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:24,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716689566] [2021-10-13 01:17:24,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:24,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:24,901 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:24,926 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:24,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:24,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2021-10-13 01:17:24,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:24,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299248507] [2021-10-13 01:17:24,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:24,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:24,975 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:25,033 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:25,563 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:25,564 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:25,565 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:25,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:25,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:25,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:25,566 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:25,566 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:25,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration1_Lasso [2021-10-13 01:17:25,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:25,567 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:25,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:25,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:25,602 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 01:17:25,604 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 01:17:25,606 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 01:17:25,610 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 01:17:25,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:25,621 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 01:17:25,625 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 01:17:25,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:25,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:25,797 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 01:17:25,799 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 01:17:25,803 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 01:17:25,815 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 01:17:26,179 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:26,184 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:26,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,197 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 01:17:26,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,209 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:26,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:26,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:26,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:17:26,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:17:26,337 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 01:17:26,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:26,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:26,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:26,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,385 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:17:26,394 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 01:17:26,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:26,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:26,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:26,429 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,461 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:17:26,472 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 01:17:26,481 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,481 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:26,482 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,482 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,482 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,483 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:26,483 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:26,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-13 01:17:26,513 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,515 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:17:26,521 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 01:17:26,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:26,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:26,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,629 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 01:17:26,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,645 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:26,645 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:26,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:17:26,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,708 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:17:26,711 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 01:17:26,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,719 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:26,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:26,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:26,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,755 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:17:26,757 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 01:17:26,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:26,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:26,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-13 01:17:26,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,820 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:17:26,822 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 01:17:26,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:26,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:26,846 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,869 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:17:26,871 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 01:17:26,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,879 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,885 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:26,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:26,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,917 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:17:26,918 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 01:17:26,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:26,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:26,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:26,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:26,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:26,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:26,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:26,956 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:26,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 01:17:26,960 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 01:17:26,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:26,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:26,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:26,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:26,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:26,980 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:27,011 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:27,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:27,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:27,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:27,036 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:27,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 01:17:27,037 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 01:17:27,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:27,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:27,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:27,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:27,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:27,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:27,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:27,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-13 01:17:27,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:27,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:27,092 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:27,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 01:17:27,093 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 01:17:27,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:27,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:27,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:27,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:27,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:27,103 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:27,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:27,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:27,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:27,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:27,175 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:27,183 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 01:17:27,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:27,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:27,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:27,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:27,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:27,196 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:27,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:27,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 01:17:27,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:27,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:27,245 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:27,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:27,246 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:27,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 01:17:27,248 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 01:17:27,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:27,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:27,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:27,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:27,267 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:27,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:27,309 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:27,355 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-10-13 01:17:27,356 INFO L444 ModelExtractionUtils]: 9 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-13 01:17:27,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:27,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:27,398 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:27,402 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:27,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 01:17:27,438 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:17:27,438 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:27,439 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-10-13 01:17:27,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:27,500 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2021-10-13 01:17:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:27,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:17:27,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:27,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:27,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:27,634 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 01:17:27,657 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:17:27,659 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 01:17:27,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 23 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 22 states have internal predecessors, (34), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 57 states and 84 transitions. Complement of second has 7 states. [2021-10-13 01:17:27,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 01:17:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 57 transitions. [2021-10-13 01:17:27,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 01:17:27,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:27,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-13 01:17:27,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:27,757 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 57 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-13 01:17:27,757 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:27,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 84 transitions. [2021-10-13 01:17:27,772 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 01:17:27,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 19 states and 26 transitions. [2021-10-13 01:17:27,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-13 01:17:27,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-13 01:17:27,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 26 transitions. [2021-10-13 01:17:27,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:27,782 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-13 01:17:27,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 26 transitions. [2021-10-13 01:17:27,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-13 01:17:27,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 19 states have (on average 1.368421052631579) internal successors, (26), 18 states have internal predecessors, (26), 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 01:17:27,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2021-10-13 01:17:27,825 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-13 01:17:27,825 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 26 transitions. [2021-10-13 01:17:27,825 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:17:27,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 26 transitions. [2021-10-13 01:17:27,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2021-10-13 01:17:27,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:27,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:27,829 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:27,830 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:17:27,830 INFO L791 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 157#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 162#L532 assume !(main_~length1~0 < 1); 161#L532-2 assume !(main_~length2~0 < 1); 152#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 153#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 164#L541-4 main_~i~1 := 0; 155#L547-3 [2021-10-13 01:17:27,830 INFO L793 eck$LassoCheckResult]: Loop: 155#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 154#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 155#L547-3 [2021-10-13 01:17:27,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:27,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2021-10-13 01:17:27,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:27,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573988610] [2021-10-13 01:17:27,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:27,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:27,866 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:27,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-13 01:17:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:27,917 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:27,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:27,924 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2021-10-13 01:17:27,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:27,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286084422] [2021-10-13 01:17:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:27,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:27,942 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:27,954 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:27,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:27,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384784, now seen corresponding path program 1 times [2021-10-13 01:17:27,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:27,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432708984] [2021-10-13 01:17:27,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:27,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:27,970 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:27,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:28,420 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:28,420 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:28,420 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:28,420 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:28,420 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:28,421 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:28,421 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:28,421 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:28,421 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration2_Lasso [2021-10-13 01:17:28,421 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:28,421 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:28,425 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 01:17:28,430 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 01:17:28,433 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 01:17:28,438 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 01:17:28,442 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 01:17:28,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,574 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 01:17:28,576 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 01:17:28,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:28,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:28,818 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:28,819 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:28,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:28,826 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:28,835 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 01:17:28,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:28,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:28,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:28,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:28,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:28,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:28,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:28,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 01:17:28,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:28,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:28,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:28,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:28,907 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:28,917 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 01:17:28,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:28,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:28,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:28,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:28,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:28,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 01:17:28,926 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:28,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:28,940 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:28,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:28,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:28,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:28,973 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:28,979 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 01:17:28,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:28,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:28,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:28,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:28,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 01:17:28,994 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:28,994 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:29,013 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:29,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,056 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,087 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 01:17:29,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,098 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:29,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:29,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:29,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 01:17:29,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-13 01:17:29,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,127 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 01:17:29,129 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 01:17:29,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:29,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:29,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:29,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:29,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,172 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 01:17:29,176 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 01:17:29,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:29,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:29,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-13 01:17:29,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,262 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 01:17:29,268 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 01:17:29,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:29,283 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:29,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:29,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,327 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 01:17:29,328 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 01:17:29,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,344 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:29,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:29,369 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:29,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,415 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,422 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 01:17:29,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:29,434 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:29,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:29,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 01:17:29,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-13 01:17:29,466 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,467 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,469 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 01:17:29,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 01:17:29,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:29,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:29,509 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:29,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:29,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,557 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,566 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 01:17:29,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:29,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:29,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:29,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:29,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:29,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:29,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 01:17:29,609 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:29,649 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-13 01:17:29,649 INFO L444 ModelExtractionUtils]: 8 out of 22 variables were initially zero. Simplification set additionally 10 variables to zero. [2021-10-13 01:17:29,649 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:29,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:29,651 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:29,653 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:29,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 01:17:29,677 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:17:29,677 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:29,677 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2, ULTIMATE.start_main_~i~1, ULTIMATE.start_main_~nondetString2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_2 - 1*ULTIMATE.start_main_~i~1 - 1*ULTIMATE.start_main_~nondetString2~0.offset Supporting invariants [] [2021-10-13 01:17:29,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:29,712 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-10-13 01:17:29,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:29,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:17:29,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:29,783 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:17:29,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:29,811 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 01:17:29,812 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-13 01:17:29,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 01:17:29,885 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 26 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 29 states and 42 transitions. Complement of second has 7 states. [2021-10-13 01:17:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:29,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 01:17:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 24 transitions. [2021-10-13 01:17:29,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-13 01:17:29,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:29,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 9 letters. Loop has 2 letters. [2021-10-13 01:17:29,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:29,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 24 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-13 01:17:29,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:29,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 42 transitions. [2021-10-13 01:17:29,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 01:17:29,891 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 20 states and 28 transitions. [2021-10-13 01:17:29,892 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-13 01:17:29,892 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 01:17:29,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 28 transitions. [2021-10-13 01:17:29,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:29,893 INFO L681 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-10-13 01:17:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 28 transitions. [2021-10-13 01:17:29,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-13 01:17:29,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.4) internal successors, (28), 19 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 01:17:29,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2021-10-13 01:17:29,896 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-10-13 01:17:29,896 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 28 transitions. [2021-10-13 01:17:29,896 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:17:29,896 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 28 transitions. [2021-10-13 01:17:29,897 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 01:17:29,897 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:29,897 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:29,898 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:29,898 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:29,899 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 286#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 292#L532 assume !(main_~length1~0 < 1); 290#L532-2 assume !(main_~length2~0 < 1); 281#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 282#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 293#L541-4 main_~i~1 := 0; 294#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 297#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 296#L517-3 [2021-10-13 01:17:29,899 INFO L793 eck$LassoCheckResult]: Loop: 296#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 291#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 289#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 298#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 287#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 288#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 295#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 296#L517-3 [2021-10-13 01:17:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1298384726, now seen corresponding path program 1 times [2021-10-13 01:17:29,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:29,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125925708] [2021-10-13 01:17:29,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:29,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:29,921 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:29,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:29,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:29,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:29,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 1 times [2021-10-13 01:17:29,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:29,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788478900] [2021-10-13 01:17:29,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:29,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:30,003 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:30,018 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:30,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:30,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1515359350, now seen corresponding path program 1 times [2021-10-13 01:17:30,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:30,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511431360] [2021-10-13 01:17:30,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:30,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:30,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:30,296 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 01:17:30,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:30,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511431360] [2021-10-13 01:17:30,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511431360] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:17:30,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:17:30,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 01:17:30,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199193162] [2021-10-13 01:17:30,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:30,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:30,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 01:17:30,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-13 01:17:30,606 INFO L87 Difference]: Start difference. First operand 20 states and 28 transitions. cyclomatic complexity: 11 Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:30,723 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2021-10-13 01:17:30,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 01:17:30,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2021-10-13 01:17:30,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 01:17:30,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 28 transitions. [2021-10-13 01:17:30,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-13 01:17:30,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 01:17:30,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2021-10-13 01:17:30,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:30,728 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-10-13 01:17:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2021-10-13 01:17:30,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-13 01:17:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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 01:17:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2021-10-13 01:17:30,733 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-13 01:17:30,733 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2021-10-13 01:17:30,733 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:17:30,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2021-10-13 01:17:30,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 01:17:30,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:30,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:30,735 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:30,735 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:30,735 INFO L791 eck$LassoCheckResult]: Stem: 349#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 350#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 356#L532 assume !(main_~length1~0 < 1); 354#L532-2 assume !(main_~length2~0 < 1); 345#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 346#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 363#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 364#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 357#L541-4 main_~i~1 := 0; 358#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 361#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 360#L517-3 [2021-10-13 01:17:30,736 INFO L793 eck$LassoCheckResult]: Loop: 360#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 355#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 353#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 362#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 351#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 352#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 359#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 360#L517-3 [2021-10-13 01:17:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:30,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 1 times [2021-10-13 01:17:30,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:30,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092053513] [2021-10-13 01:17:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:30,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:30,752 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:30,771 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:30,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:30,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 2 times [2021-10-13 01:17:30,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:30,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564091304] [2021-10-13 01:17:30,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:30,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:30,781 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:30,791 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:30,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:30,792 INFO L82 PathProgramCache]: Analyzing trace with hash 2020169960, now seen corresponding path program 1 times [2021-10-13 01:17:30,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:30,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066596570] [2021-10-13 01:17:30,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:30,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 01:17:30,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:30,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066596570] [2021-10-13 01:17:30,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066596570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:17:30,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:17:30,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-13 01:17:30,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323814751] [2021-10-13 01:17:31,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:31,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 01:17:31,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-10-13 01:17:31,227 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 10 Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 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 01:17:31,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:31,418 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2021-10-13 01:17:31,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:17:31,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2021-10-13 01:17:31,419 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-10-13 01:17:31,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 32 states and 42 transitions. [2021-10-13 01:17:31,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-13 01:17:31,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-13 01:17:31,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 42 transitions. [2021-10-13 01:17:31,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:31,422 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2021-10-13 01:17:31,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 42 transitions. [2021-10-13 01:17:31,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-10-13 01:17:31,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 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 01:17:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-10-13 01:17:31,426 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-10-13 01:17:31,426 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-10-13 01:17:31,426 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 01:17:31,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2021-10-13 01:17:31,427 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2021-10-13 01:17:31,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:31,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:31,428 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:31,428 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:31,429 INFO L791 eck$LassoCheckResult]: Stem: 425#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 426#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 432#L532 assume !(main_~length1~0 < 1); 429#L532-2 assume !(main_~length2~0 < 1); 421#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 422#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 442#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 443#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 433#L541-4 main_~i~1 := 0; 434#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 444#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 445#L517-3 [2021-10-13 01:17:31,429 INFO L793 eck$LassoCheckResult]: Loop: 445#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 446#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 448#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 447#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 427#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 428#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 440#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 441#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 437#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 438#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 445#L517-3 [2021-10-13 01:17:31,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:31,430 INFO L82 PathProgramCache]: Analyzing trace with hash -2034626632, now seen corresponding path program 2 times [2021-10-13 01:17:31,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:31,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542624944] [2021-10-13 01:17:31,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:31,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:31,446 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:31,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:31,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:31,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1312710103, now seen corresponding path program 1 times [2021-10-13 01:17:31,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:31,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100449752] [2021-10-13 01:17:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:31,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:31,523 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:31,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:31,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:31,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:31,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1844492576, now seen corresponding path program 1 times [2021-10-13 01:17:31,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:31,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103773013] [2021-10-13 01:17:31,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:31,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 01:17:31,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:31,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103773013] [2021-10-13 01:17:31,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103773013] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:31,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555626145] [2021-10-13 01:17:31,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:31,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:31,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:31,733 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:31,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-13 01:17:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:31,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 01:17:31,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:31,894 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 01:17:31,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-13 01:17:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 01:17:32,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555626145] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:17:32,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 01:17:32,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 15 [2021-10-13 01:17:32,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633404559] [2021-10-13 01:17:32,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:32,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 01:17:32,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-10-13 01:17:32,380 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. cyclomatic complexity: 14 Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 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 01:17:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:32,541 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2021-10-13 01:17:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:17:32,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-13 01:17:32,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 01:17:32,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 21 states and 27 transitions. [2021-10-13 01:17:32,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-13 01:17:32,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 01:17:32,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2021-10-13 01:17:32,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:17:32,544 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-10-13 01:17:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2021-10-13 01:17:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-10-13 01:17:32,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.3) internal successors, (26), 19 states have internal predecessors, (26), 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 01:17:32,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-13 01:17:32,547 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-13 01:17:32,547 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-13 01:17:32,547 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 01:17:32,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2021-10-13 01:17:32,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 01:17:32,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:32,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:32,549 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:32,549 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:32,549 INFO L791 eck$LassoCheckResult]: Stem: 574#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 575#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 581#L532 assume !(main_~length1~0 < 1); 579#L532-2 assume !(main_~length2~0 < 1); 570#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 571#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 588#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 589#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 582#L541-4 main_~i~1 := 0; 583#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 572#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 573#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 586#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 585#L517-3 [2021-10-13 01:17:32,549 INFO L793 eck$LassoCheckResult]: Loop: 585#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 580#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 578#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 587#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 576#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 577#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 584#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 585#L517-3 [2021-10-13 01:17:32,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:32,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1066016806, now seen corresponding path program 1 times [2021-10-13 01:17:32,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:32,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850053575] [2021-10-13 01:17:32,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:32,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:32,566 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:32,585 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:32,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:32,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1328860033, now seen corresponding path program 3 times [2021-10-13 01:17:32,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:32,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514008834] [2021-10-13 01:17:32,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:32,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:32,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:32,595 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:32,603 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:32,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:32,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1498710394, now seen corresponding path program 1 times [2021-10-13 01:17:32,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:32,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945234176] [2021-10-13 01:17:32,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:32,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:32,626 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:32,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:34,169 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:34,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:34,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:34,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:34,169 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:34,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:34,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:34,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:34,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration6_Lasso [2021-10-13 01:17:34,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:34,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:34,177 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 01:17:34,181 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 01:17:34,183 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 01:17:34,187 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 01:17:34,189 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 01:17:34,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:34,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:34,948 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 01:17:34,950 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 01:17:34,951 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 01:17:34,953 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 01:17:34,955 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 01:17:34,956 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 01:17:34,958 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 01:17:34,962 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 01:17:34,965 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 01:17:34,967 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 01:17:34,969 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 01:17:34,971 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 01:17:34,972 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 01:17:34,974 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 01:17:34,976 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 01:17:34,977 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 01:17:34,980 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 01:17:34,981 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 01:17:34,983 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 01:17:34,985 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 01:17:34,987 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 01:17:35,712 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:35,712 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:35,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:35,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:35,721 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:35,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 01:17:35,724 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 01:17:35,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:35,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:35,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:35,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:35,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:35,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:35,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:35,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:35,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:35,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:35,768 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:35,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 01:17:35,770 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 01:17:35,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:35,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:35,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:35,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:35,780 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:35,780 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:35,780 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:35,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:35,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:35,812 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:35,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:35,813 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:35,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 01:17:35,817 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 01:17:35,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:35,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:35,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:35,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:35,828 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:35,828 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:35,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:35,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:35,884 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:35,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:35,886 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:35,894 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 01:17:35,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:35,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:35,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:35,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:35,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:35,907 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:35,907 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:35,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 01:17:35,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:35,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:35,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:35,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:35,964 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:35,967 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 01:17:35,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:35,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:35,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:35,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:35,980 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:35,981 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:35,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 01:17:35,993 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:36,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,023 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 01:17:36,026 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 01:17:36,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,038 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,038 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:36,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,066 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 01:17:36,068 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 01:17:36,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,077 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2021-10-13 01:17:36,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,140 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2021-10-13 01:17:36,140 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2021-10-13 01:17:36,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-13 01:17:36,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,314 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 01:17:36,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:36,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,324 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,324 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2021-10-13 01:17:36,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,387 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 01:17:36,389 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 01:17:36,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,396 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:36,396 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,396 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,396 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,397 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:36,397 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:36,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:36,418 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,421 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 01:17:36,423 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 01:17:36,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,432 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-10-13 01:17:36,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,458 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 01:17:36,459 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 01:17:36,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-13 01:17:36,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,512 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 01:17:36,513 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 01:17:36,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,522 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,522 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-13 01:17:36,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,554 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,555 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 01:17:36,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,567 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,567 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 01:17:36,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:36,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:36,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,596 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-13 01:17:36,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:36,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:36,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:36,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:36,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:36,616 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:36,617 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:36,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:36,683 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-10-13 01:17:36,683 INFO L444 ModelExtractionUtils]: 26 out of 64 variables were initially zero. Simplification set additionally 35 variables to zero. [2021-10-13 01:17:36,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:36,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:36,686 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:36,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 01:17:36,691 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:36,700 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:17:36,700 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:36,701 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps~0.offset, v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2) = -1*ULTIMATE.start_substring_~ps~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_2 Supporting invariants [] [2021-10-13 01:17:36,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:36,811 INFO L297 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2021-10-13 01:17:36,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:36,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:36,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:17:36,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:36,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:17:36,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:37,035 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 01:17:37,036 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:17:37,036 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 01:17:37,078 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 26 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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) Result 27 states and 36 transitions. Complement of second has 4 states. [2021-10-13 01:17:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:37,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 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 01:17:37,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 24 transitions. [2021-10-13 01:17:37,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 13 letters. Loop has 7 letters. [2021-10-13 01:17:37,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:37,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 20 letters. Loop has 7 letters. [2021-10-13 01:17:37,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:37,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 24 transitions. Stem has 13 letters. Loop has 14 letters. [2021-10-13 01:17:37,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:37,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-10-13 01:17:37,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:37,082 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 34 transitions. [2021-10-13 01:17:37,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2021-10-13 01:17:37,082 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-13 01:17:37,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2021-10-13 01:17:37,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:37,082 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-13 01:17:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2021-10-13 01:17:37,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-10-13 01:17:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.36) internal successors, (34), 24 states have internal predecessors, (34), 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 01:17:37,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-10-13 01:17:37,085 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-13 01:17:37,085 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-13 01:17:37,085 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 01:17:37,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2021-10-13 01:17:37,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:37,086 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:37,086 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:37,086 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:37,086 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:17:37,087 INFO L791 eck$LassoCheckResult]: Stem: 780#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 781#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 790#L532 assume !(main_~length1~0 < 1); 789#L532-2 assume !(main_~length2~0 < 1); 778#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 779#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 801#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 802#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 793#L541-4 main_~i~1 := 0; 794#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 782#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 783#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 797#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 798#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 791#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 785#L520-5 [2021-10-13 01:17:37,087 INFO L793 eck$LassoCheckResult]: Loop: 785#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 799#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 784#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 785#L520-5 [2021-10-13 01:17:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:37,087 INFO L82 PathProgramCache]: Analyzing trace with hash 2055034719, now seen corresponding path program 1 times [2021-10-13 01:17:37,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:37,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453661118] [2021-10-13 01:17:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:37,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:37,116 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:37,141 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:37,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:37,142 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 1 times [2021-10-13 01:17:37,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:37,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733686998] [2021-10-13 01:17:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:37,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:37,149 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:37,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:37,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:37,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1075534243, now seen corresponding path program 1 times [2021-10-13 01:17:37,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:37,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160791519] [2021-10-13 01:17:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:37,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:37,189 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:37,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:37,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:38,867 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:38,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:38,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:38,868 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:38,868 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:38,868 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:38,868 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:38,868 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:38,868 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration7_Lasso [2021-10-13 01:17:38,868 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:38,868 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:38,872 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 01:17:38,875 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 01:17:38,877 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 01:17:38,880 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 01:17:38,882 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 01:17:38,884 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 01:17:38,887 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 01:17:38,889 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 01:17:38,892 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 01:17:38,895 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 01:17:38,897 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 01:17:38,899 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 01:17:38,901 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 01:17:38,904 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 01:17:38,906 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 01:17:38,908 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 01:17:38,910 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 01:17:38,913 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 01:17:38,916 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 01:17:38,918 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 01:17:38,920 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 01:17:39,676 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 01:17:39,681 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 01:17:39,683 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 01:17:39,698 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 01:17:39,700 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 01:17:39,702 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 01:17:40,436 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:40,436 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:40,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,439 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 01:17:40,441 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 01:17:40,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-13 01:17:40,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,470 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 01:17:40,472 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 01:17:40,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:40,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:40,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-13 01:17:40,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,504 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 01:17:40,505 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 01:17:40,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,514 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-13 01:17:40,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,535 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-13 01:17:40,536 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 01:17:40,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,545 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:40,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,566 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 01:17:40,569 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 01:17:40,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:40,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:40,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-13 01:17:40,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,599 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 01:17:40,601 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 01:17:40,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,610 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-13 01:17:40,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,630 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 01:17:40,639 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 01:17:40,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,646 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,646 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:40,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,684 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-13 01:17:40,685 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 01:17:40,692 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,692 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,694 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:40,694 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:40,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-13 01:17:40,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,716 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 01:17:40,717 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 01:17:40,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,725 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,725 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,725 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,725 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-13 01:17:40,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,747 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 01:17:40,749 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 01:17:40,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-13 01:17:40,777 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,777 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 01:17:40,779 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 01:17:40,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,787 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-13 01:17:40,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,807 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 01:17:40,809 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 01:17:40,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,816 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-10-13 01:17:40,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,837 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 01:17:40,839 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:40,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:40,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,873 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 01:17:40,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:40,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,881 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,882 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,882 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-13 01:17:40,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,903 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 01:17:40,905 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 01:17:40,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,912 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,913 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,913 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,913 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-13 01:17:40,933 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,934 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 01:17:40,936 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 01:17:40,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:40,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:40,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:40,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:40,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,965 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 01:17:40,966 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 01:17:40,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:40,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:40,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:40,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:40,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:40,975 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:40,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:40,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:40,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:40,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:40,997 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:40,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 01:17:40,999 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 01:17:41,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:41,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:41,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:41,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:41,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:41,007 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:41,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:41,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:41,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:41,027 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:41,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:41,028 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:41,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 01:17:41,029 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 01:17:41,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:41,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:41,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:41,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:41,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:41,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:41,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:41,038 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:41,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-13 01:17:41,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:41,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:41,058 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:41,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 01:17:41,059 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 01:17:41,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:41,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:41,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:41,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:41,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:41,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:41,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:41,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:41,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:41,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:41,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:41,088 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:41,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 01:17:41,095 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 01:17:41,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:41,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:41,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:41,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:41,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:41,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:41,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:41,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:41,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:41,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:41,175 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:41,186 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 01:17:41,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:41,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:41,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:41,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:41,197 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:41,197 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:41,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 01:17:41,218 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:41,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:41,250 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:41,251 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:41,253 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 01:17:41,263 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:41,263 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:41,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:41,263 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:41,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:41,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:41,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 01:17:41,310 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:41,428 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2021-10-13 01:17:41,428 INFO L444 ModelExtractionUtils]: 25 out of 64 variables were initially zero. Simplification set additionally 36 variables to zero. [2021-10-13 01:17:41,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:41,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:41,430 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:41,431 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:41,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-13 01:17:41,462 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:17:41,462 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:41,462 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_3, ULTIMATE.start_substring_~pt~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~nondetString1~0.base)_3 - 1*ULTIMATE.start_substring_~pt~0.offset Supporting invariants [] [2021-10-13 01:17:41,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:41,630 INFO L297 tatePredicateManager]: 32 out of 34 supporting invariants were superfluous and have been removed [2021-10-13 01:17:41,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:41,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-13 01:17:41,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:41,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-13 01:17:41,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:41,884 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 01:17:41,885 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-13 01:17:41,885 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 13 Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 01:17:41,958 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 34 transitions. cyclomatic complexity: 13. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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) Result 67 states and 86 transitions. Complement of second has 9 states. [2021-10-13 01:17:41,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:17:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 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 01:17:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2021-10-13 01:17:41,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 15 letters. Loop has 3 letters. [2021-10-13 01:17:41,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:41,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 18 letters. Loop has 3 letters. [2021-10-13 01:17:41,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:41,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 15 letters. Loop has 6 letters. [2021-10-13 01:17:41,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:41,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 86 transitions. [2021-10-13 01:17:41,961 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 01:17:41,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 56 states and 74 transitions. [2021-10-13 01:17:41,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-13 01:17:41,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2021-10-13 01:17:41,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 74 transitions. [2021-10-13 01:17:41,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:41,964 INFO L681 BuchiCegarLoop]: Abstraction has 56 states and 74 transitions. [2021-10-13 01:17:41,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 74 transitions. [2021-10-13 01:17:41,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2021-10-13 01:17:41,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 44 states have internal predecessors, (61), 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 01:17:41,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2021-10-13 01:17:41,968 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 61 transitions. [2021-10-13 01:17:41,969 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 61 transitions. [2021-10-13 01:17:41,969 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 01:17:41,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 61 transitions. [2021-10-13 01:17:41,969 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-13 01:17:41,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:41,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:41,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:41,970 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:17:41,971 INFO L791 eck$LassoCheckResult]: Stem: 1100#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1101#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1111#L532 assume !(main_~length1~0 < 1); 1106#L532-2 assume !(main_~length2~0 < 1); 1096#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1097#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1122#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1123#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1112#L541-4 main_~i~1 := 0; 1113#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1098#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1099#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1117#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1118#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1107#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1108#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1119#L520-1 [2021-10-13 01:17:41,971 INFO L793 eck$LassoCheckResult]: Loop: 1119#L520-1 assume !substring_#t~short6; 1102#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1103#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1119#L520-1 [2021-10-13 01:17:41,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:41,971 INFO L82 PathProgramCache]: Analyzing trace with hash -718433093, now seen corresponding path program 1 times [2021-10-13 01:17:41,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:41,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945787254] [2021-10-13 01:17:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:41,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:41,985 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:41,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:42,001 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:42,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:42,001 INFO L82 PathProgramCache]: Analyzing trace with hash 92531, now seen corresponding path program 1 times [2021-10-13 01:17:42,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:42,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553849623] [2021-10-13 01:17:42,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:42,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:42,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:42,011 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 01:17:42,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:42,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553849623] [2021-10-13 01:17:42,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553849623] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:17:42,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:17:42,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 01:17:42,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532537374] [2021-10-13 01:17:42,012 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:17:42,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:42,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:17:42,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:17:42,013 INFO L87 Difference]: Start difference. First operand 45 states and 61 transitions. cyclomatic complexity: 24 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 01:17:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:42,022 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-10-13 01:17:42,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:17:42,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 54 transitions. [2021-10-13 01:17:42,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:42,024 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 33 states and 42 transitions. [2021-10-13 01:17:42,024 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 01:17:42,024 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-13 01:17:42,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 42 transitions. [2021-10-13 01:17:42,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:42,025 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 42 transitions. [2021-10-13 01:17:42,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 42 transitions. [2021-10-13 01:17:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-10-13 01:17:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 30 states have internal predecessors, (40), 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 01:17:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2021-10-13 01:17:42,027 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-10-13 01:17:42,027 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-10-13 01:17:42,028 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 01:17:42,028 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 40 transitions. [2021-10-13 01:17:42,028 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:42,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:42,028 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:42,029 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:42,029 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:17:42,029 INFO L791 eck$LassoCheckResult]: Stem: 1194#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1195#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1204#L532 assume !(main_~length1~0 < 1); 1200#L532-2 assume !(main_~length2~0 < 1); 1190#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1191#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1215#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1216#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1205#L541-4 main_~i~1 := 0; 1206#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1192#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1193#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1210#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1211#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1217#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1199#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1213#L520-1 assume !substring_#t~short6; 1214#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 1209#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1207#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1208#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1201#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1197#L520-5 [2021-10-13 01:17:42,030 INFO L793 eck$LassoCheckResult]: Loop: 1197#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1212#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1196#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1197#L520-5 [2021-10-13 01:17:42,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:42,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1389384631, now seen corresponding path program 1 times [2021-10-13 01:17:42,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:42,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013132114] [2021-10-13 01:17:42,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:42,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:42,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 01:17:42,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:42,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013132114] [2021-10-13 01:17:42,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013132114] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:17:42,071 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:17:42,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:17:42,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855090582] [2021-10-13 01:17:42,071 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:42,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:42,072 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 2 times [2021-10-13 01:17:42,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:42,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605399440] [2021-10-13 01:17:42,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:42,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:42,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:42,077 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:42,082 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:42,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:42,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:17:42,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:17:42,220 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. cyclomatic complexity: 14 Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:17:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:42,267 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2021-10-13 01:17:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:17:42,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2021-10-13 01:17:42,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:42,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 31 states and 38 transitions. [2021-10-13 01:17:42,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 01:17:42,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-13 01:17:42,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 38 transitions. [2021-10-13 01:17:42,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:42,269 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-13 01:17:42,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 38 transitions. [2021-10-13 01:17:42,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 01:17:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 30 states have internal predecessors, (38), 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 01:17:42,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-10-13 01:17:42,272 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-13 01:17:42,272 INFO L587 BuchiCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-10-13 01:17:42,272 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 01:17:42,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 38 transitions. [2021-10-13 01:17:42,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:42,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:42,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:42,273 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:42,273 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:17:42,274 INFO L791 eck$LassoCheckResult]: Stem: 1267#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1268#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1276#L532 assume !(main_~length1~0 < 1); 1275#L532-2 assume !(main_~length2~0 < 1); 1265#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1266#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1289#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1290#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1279#L541-4 main_~i~1 := 0; 1280#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1269#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1270#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1284#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1285#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1278#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1274#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1287#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1288#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 1283#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1281#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1282#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1277#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1272#L520-5 [2021-10-13 01:17:42,274 INFO L793 eck$LassoCheckResult]: Loop: 1272#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1286#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1271#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1272#L520-5 [2021-10-13 01:17:42,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:42,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1446642933, now seen corresponding path program 2 times [2021-10-13 01:17:42,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:42,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445136868] [2021-10-13 01:17:42,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:42,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:42,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 01:17:42,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:17:42,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445136868] [2021-10-13 01:17:42,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445136868] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:42,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196908835] [2021-10-13 01:17:42,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 01:17:42,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 01:17:42,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:42,529 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 01:17:42,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-10-13 01:17:42,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 01:17:42,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 01:17:42,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 31 conjunts are in the unsatisfiable core [2021-10-13 01:17:42,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:42,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-13 01:17:42,845 INFO L354 Elim1Store]: treesize reduction 40, result has 20.0 percent of original size [2021-10-13 01:17:42,845 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 1 case distinctions, treesize of input 47 treesize of output 31 [2021-10-13 01:17:43,230 INFO L354 Elim1Store]: treesize reduction 42, result has 6.7 percent of original size [2021-10-13 01:17:43,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 23 [2021-10-13 01:17:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 01:17:43,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196908835] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 01:17:43,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 01:17:43,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2021-10-13 01:17:43,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831952010] [2021-10-13 01:17:43,250 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 01:17:43,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:43,251 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 3 times [2021-10-13 01:17:43,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:43,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481063668] [2021-10-13 01:17:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:43,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,256 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:43,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:17:43,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 01:17:43,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-10-13 01:17:43,400 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. cyclomatic complexity: 12 Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 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 01:17:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:17:43,802 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2021-10-13 01:17:43,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 01:17:43,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2021-10-13 01:17:43,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:43,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 34 states and 41 transitions. [2021-10-13 01:17:43,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 01:17:43,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-13 01:17:43,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2021-10-13 01:17:43,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:43,805 INFO L681 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2021-10-13 01:17:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2021-10-13 01:17:43,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-10-13 01:17:43,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 32 states have internal predecessors, (40), 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 01:17:43,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-10-13 01:17:43,809 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-13 01:17:43,809 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-13 01:17:43,809 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 01:17:43,809 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2021-10-13 01:17:43,810 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:43,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:43,810 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:43,810 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:43,811 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:17:43,811 INFO L791 eck$LassoCheckResult]: Stem: 1445#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1446#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 1457#L532 assume !(main_~length1~0 < 1); 1453#L532-2 assume !(main_~length2~0 < 1); 1443#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 1444#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1468#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1469#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 1470#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 1473#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 1458#L541-4 main_~i~1 := 0; 1459#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 1447#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 1448#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 1463#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 1464#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1471#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1452#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1466#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1467#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 1462#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 1460#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 1461#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 1454#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 1450#L520-5 [2021-10-13 01:17:43,811 INFO L793 eck$LassoCheckResult]: Loop: 1450#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 1465#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 1449#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 1450#L520-5 [2021-10-13 01:17:43,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:43,812 INFO L82 PathProgramCache]: Analyzing trace with hash -1546919447, now seen corresponding path program 3 times [2021-10-13 01:17:43,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:43,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059189665] [2021-10-13 01:17:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:43,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,833 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:43,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:43,853 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 4 times [2021-10-13 01:17:43,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:43,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141453331] [2021-10-13 01:17:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:43,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,858 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:43,863 INFO L82 PathProgramCache]: Analyzing trace with hash 721898201, now seen corresponding path program 1 times [2021-10-13 01:17:43,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:43,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931681343] [2021-10-13 01:17:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:43,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,883 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:43,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:43,906 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:46,213 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:46,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:46,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:46,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:46,214 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:46,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:46,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:46,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:46,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration11_Lasso [2021-10-13 01:17:46,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:46,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:46,219 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 01:17:46,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:17:46,225 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 01:17:46,227 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 01:17:46,229 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 01:17:46,231 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 01:17:46,233 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 01:17:46,236 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 01:17:46,238 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 01:17:46,240 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 01:17:46,241 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 01:17:46,243 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 01:17:46,245 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 01:17:46,247 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 01:17:46,250 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 01:17:46,252 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 01:17:46,254 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 01:17:47,329 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 01:17:47,331 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 01:17:47,334 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 01:17:47,335 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 01:17:47,337 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 01:17:47,340 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 01:17:47,343 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 01:17:47,345 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 01:17:47,347 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 01:17:47,349 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 01:17:48,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:48,626 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:48,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,629 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-13 01:17:48,631 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 01:17:48,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,639 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,640 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-13 01:17:48,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,660 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-13 01:17:48,662 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 01:17:48,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:48,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,737 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:48,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-13 01:17:48,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-13 01:17:48,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,790 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,791 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 01:17:48,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-13 01:17:48,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:48,810 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:48,812 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-10-13 01:17:48,831 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,832 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-13 01:17:48,833 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 01:17:48,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,841 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-13 01:17:48,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,863 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-13 01:17:48,864 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 01:17:48,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,871 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,872 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-10-13 01:17:48,892 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,893 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-13 01:17:48,894 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 01:17:48,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:48,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:48,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-13 01:17:48,924 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,924 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-13 01:17:48,925 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:48,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,933 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,934 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-13 01:17:48,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,954 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-13 01:17:48,955 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 01:17:48,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,963 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:48,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:48,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:48,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:48,983 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:48,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-13 01:17:48,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:48,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:48,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:48,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:48,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:48,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:48,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:48,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:48,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,014 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-13 01:17:49,015 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 01:17:49,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:49,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:49,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:49,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,043 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-13 01:17:49,044 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 01:17:49,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:49,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:49,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:49,053 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-10-13 01:17:49,073 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,074 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-13 01:17:49,075 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 01:17:49,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:49,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:49,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:49,086 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,107 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,108 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-13 01:17:49,109 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 01:17:49,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,119 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:49,119 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,119 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,119 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:49,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:49,167 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,203 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,204 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,214 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 01:17:49,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:49,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:49,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:49,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-13 01:17:49,252 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,287 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-13 01:17:49,291 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 01:17:49,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:49,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:49,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:49,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-10-13 01:17:49,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,340 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-13 01:17:49,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:49,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,349 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:49,349 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:49,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-13 01:17:49,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,374 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-13 01:17:49,375 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 01:17:49,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,385 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:49,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:49,389 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,411 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-13 01:17:49,412 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 01:17:49,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:49,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:49,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:49,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-10-13 01:17:49,458 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,459 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-13 01:17:49,460 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:49,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:49,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:49,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:49,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:49,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:49,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:49,525 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:17:49,585 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-10-13 01:17:49,585 INFO L444 ModelExtractionUtils]: 13 out of 70 variables were initially zero. Simplification set additionally 52 variables to zero. [2021-10-13 01:17:49,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:49,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:49,590 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:49,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:17:49,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-13 01:17:49,626 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-13 01:17:49,626 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:17:49,626 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_5) = -2*ULTIMATE.start_substring_~ps2~0.offset + 3*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_5 Supporting invariants [-2*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_5 + 3*v_rep(select #length ULTIMATE.start_main_~nondetString2~0.base)_3 >= 0] [2021-10-13 01:17:49,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:49,941 INFO L297 tatePredicateManager]: 50 out of 53 supporting invariants were superfluous and have been removed [2021-10-13 01:17:49,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:50,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 01:17:50,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:50,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-13 01:17:50,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-13 01:17:50,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:50,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 01:17:50,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:50,845 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 01:17:50,845 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2021-10-13 01:17:50,846 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12 Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 01:17:51,220 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 63 states and 75 transitions. Complement of second has 15 states. [2021-10-13 01:17:51,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 8 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-13 01:17:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 01:17:51,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 39 transitions. [2021-10-13 01:17:51,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-13 01:17:51,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:51,222 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:17:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:51,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:51,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 01:17:51,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:51,325 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-10-13 01:17:51,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2021-10-13 01:17:51,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-13 01:17:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:52,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 01:17:52,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:52,108 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 01:17:52,109 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.9 stem predicates 2 loop predicates [2021-10-13 01:17:52,109 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12 Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 01:17:52,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 63 states and 75 transitions. Complement of second has 15 states. [2021-10-13 01:17:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 8 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-13 01:17:52,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 01:17:52,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 39 transitions. [2021-10-13 01:17:52,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-13 01:17:52,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:52,490 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:17:52,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:52,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-13 01:17:52,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:52,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-13 01:17:52,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 11 [2021-10-13 01:17:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:17:53,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 01:17:53,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:17:53,421 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 01:17:53,422 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.9 stem predicates 2 loop predicates [2021-10-13 01:17:53,422 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12 Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 01:17:53,764 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 77 states and 92 transitions. Complement of second has 14 states. [2021-10-13 01:17:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 8 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-13 01:17:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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 01:17:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 53 transitions. [2021-10-13 01:17:53,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 24 letters. Loop has 3 letters. [2021-10-13 01:17:53,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:53,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 27 letters. Loop has 3 letters. [2021-10-13 01:17:53,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:53,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 53 transitions. Stem has 24 letters. Loop has 6 letters. [2021-10-13 01:17:53,767 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:17:53,767 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 92 transitions. [2021-10-13 01:17:53,768 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:53,769 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 40 states and 48 transitions. [2021-10-13 01:17:53,769 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-13 01:17:53,769 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 01:17:53,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 48 transitions. [2021-10-13 01:17:53,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 01:17:53,770 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2021-10-13 01:17:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 48 transitions. [2021-10-13 01:17:53,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35. [2021-10-13 01:17:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.2) internal successors, (42), 34 states have internal predecessors, (42), 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 01:17:53,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2021-10-13 01:17:53,773 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-13 01:17:53,773 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 42 transitions. [2021-10-13 01:17:53,774 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 01:17:53,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 42 transitions. [2021-10-13 01:17:53,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-13 01:17:53,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:17:53,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:17:53,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:17:53,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 01:17:53,776 INFO L791 eck$LassoCheckResult]: Stem: 2281#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2282#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~nondet18, main_#t~post17, main_~i~1, main_#t~ret19, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 2290#L532 assume !(main_~length1~0 < 1); 2287#L532-2 assume !(main_~length2~0 < 1); 2277#L535-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 2278#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2300#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2301#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2302#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2306#L541-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet16, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 2308#L541-2 main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 2307#L541-3 assume !(main_~i~0 < main_~length1~0 - 1); 2291#L541-4 main_~i~1 := 0; 2292#L547-3 assume !!(main_~i~1 < main_~length2~0 - 1);call write~int(main_#t~nondet18, main_~nondetString2~0.base, main_~nondetString2~0.offset + main_~i~1, 1);havoc main_#t~nondet18; 2279#L547-2 main_#t~post17 := main_~i~1;main_~i~1 := 1 + main_#t~post17;havoc main_#t~post17; 2280#L547-3 assume !(main_~i~1 < main_~length2~0 - 1); 2296#L547-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);substring_#in~s.base, substring_#in~s.offset, substring_#in~t.base, substring_#in~t.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc substring_#res;havoc substring_#t~post7.base, substring_#t~post7.offset, substring_#t~post8.base, substring_#t~post8.offset, substring_#t~mem3, substring_#t~mem4, substring_#t~mem5, substring_#t~short6, substring_#t~mem9, substring_#t~post10.base, substring_#t~post10.offset, substring_~ps2~0.base, substring_~ps2~0.offset, substring_~pt~0.base, substring_~pt~0.offset, substring_#t~mem2, substring_~s.base, substring_~s.offset, substring_~t.base, substring_~t.offset, substring_~ps~0.base, substring_~ps~0.offset;substring_~s.base, substring_~s.offset := substring_#in~s.base, substring_#in~s.offset;substring_~t.base, substring_~t.offset := substring_#in~t.base, substring_#in~t.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_~s.base, substring_~s.offset; 2297#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2289#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 2286#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2311#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2309#L520-3 assume !substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6; 2295#L520-6 call substring_#t~mem9 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1); 2293#L524 assume !(0 == substring_#t~mem9);havoc substring_#t~mem9;substring_#t~post10.base, substring_#t~post10.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~ps~0.base, substring_~ps~0.offset := substring_#t~post10.base, 1 + substring_#t~post10.offset;havoc substring_#t~post10.base, substring_#t~post10.offset; 2294#L517-3 call substring_#t~mem2 := read~int(substring_~ps~0.base, substring_~ps~0.offset, 1); 2288#L517-1 assume !!(0 != substring_#t~mem2);havoc substring_#t~mem2;substring_~ps2~0.base, substring_~ps2~0.offset := substring_~ps~0.base, substring_~ps~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_~t.base, substring_~t.offset; 2284#L520-5 [2021-10-13 01:17:53,776 INFO L793 eck$LassoCheckResult]: Loop: 2284#L520-5 call substring_#t~mem3 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);substring_#t~short6 := 0 != substring_#t~mem3; 2298#L520-1 assume substring_#t~short6;call substring_#t~mem4 := read~int(substring_~pt~0.base, substring_~pt~0.offset, 1);call substring_#t~mem5 := read~int(substring_~ps2~0.base, substring_~ps2~0.offset, 1);substring_#t~short6 := substring_#t~mem4 == substring_#t~mem5; 2283#L520-3 assume !!substring_#t~short6;havoc substring_#t~mem3;havoc substring_#t~mem4;havoc substring_#t~mem5;havoc substring_#t~short6;substring_#t~post7.base, substring_#t~post7.offset := substring_~pt~0.base, substring_~pt~0.offset;substring_~pt~0.base, substring_~pt~0.offset := substring_#t~post7.base, 1 + substring_#t~post7.offset;havoc substring_#t~post7.base, substring_#t~post7.offset;substring_#t~post8.base, substring_#t~post8.offset := substring_~ps2~0.base, substring_~ps2~0.offset;substring_~ps2~0.base, substring_~ps2~0.offset := substring_#t~post8.base, 1 + substring_#t~post8.offset;havoc substring_#t~post8.base, substring_#t~post8.offset; 2284#L520-5 [2021-10-13 01:17:53,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:53,776 INFO L82 PathProgramCache]: Analyzing trace with hash 871598407, now seen corresponding path program 4 times [2021-10-13 01:17:53,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:53,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011489616] [2021-10-13 01:17:53,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:53,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:53,800 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:53,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:53,822 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:53,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:53,823 INFO L82 PathProgramCache]: Analyzing trace with hash 87489, now seen corresponding path program 5 times [2021-10-13 01:17:53,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:53,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382029760] [2021-10-13 01:17:53,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:53,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:53,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:53,830 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:53,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:53,834 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:53,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:17:53,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1584070981, now seen corresponding path program 2 times [2021-10-13 01:17:53,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:17:53,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46100462] [2021-10-13 01:17:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:17:53,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:17:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:53,856 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:17:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:17:53,878 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:17:56,951 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:17:56,951 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:17:56,951 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:17:56,951 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:17:56,951 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:17:56,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:56,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:17:56,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:17:56,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: substring-alloca-2.i_Iteration12_Lasso [2021-10-13 01:17:56,952 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:17:56,952 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:17:56,955 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 01:17:56,963 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 01:17:56,965 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 01:17:56,967 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 01:17:56,968 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 01:17:56,970 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 01:17:56,972 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 01:17:56,974 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 01:17:56,976 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 01:17:56,978 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 01:17:56,980 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 01:17:56,982 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 01:17:56,984 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 01:17:56,986 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 01:17:56,988 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 01:17:58,050 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 01:17:58,052 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 01:17:58,063 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 01:17:58,071 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 01:17:58,073 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 01:17:58,075 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 01:17:58,088 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 01:17:58,090 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 01:17:58,092 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 01:17:58,094 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 01:17:58,095 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 01:17:58,098 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 01:17:59,265 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:17:59,266 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:17:59,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,272 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-13 01:17:59,274 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 01:17:59,281 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,281 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,281 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,281 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,281 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,283 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-13 01:17:59,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,304 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-13 01:17:59,306 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 01:17:59,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,341 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-13 01:17:59,343 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 01:17:59,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,375 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-13 01:17:59,377 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 01:17:59,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,385 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,385 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,385 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,385 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,409 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-13 01:17:59,410 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 01:17:59,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,419 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,440 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-13 01:17:59,441 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 01:17:59,448 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,448 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,450 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Ended with exit code 0 [2021-10-13 01:17:59,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,471 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-13 01:17:59,472 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 01:17:59,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,480 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-10-13 01:17:59,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,505 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-13 01:17:59,506 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 01:17:59,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,516 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,538 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-13 01:17:59,540 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 01:17:59,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,570 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-13 01:17:59,574 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 01:17:59,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,608 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-13 01:17:59,609 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 01:17:59,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,618 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Ended with exit code 0 [2021-10-13 01:17:59,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,641 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-13 01:17:59,643 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 01:17:59,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,675 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,676 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-10-13 01:17:59,677 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 01:17:59,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2021-10-13 01:17:59,708 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,709 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-10-13 01:17:59,710 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 01:17:59,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:17:59,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,718 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:17:59,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:17:59,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-10-13 01:17:59,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,740 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-10-13 01:17:59,741 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 01:17:59,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-10-13 01:17:59,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,775 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-10-13 01:17:59,776 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 01:17:59,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-10-13 01:17:59,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,843 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-10-13 01:17:59,845 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:59,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,852 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,853 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,853 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,856 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-10-13 01:17:59,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,878 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-10-13 01:17:59,879 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:17:59,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:17:59,921 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Ended with exit code 0 [2021-10-13 01:17:59,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:17:59,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:17:59,922 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:17:59,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-10-13 01:17:59,923 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 01:17:59,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:17:59,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:17:59,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:17:59,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:17:59,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:17:59,951 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:17:59,995 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:18:00,058 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2021-10-13 01:18:00,058 INFO L444 ModelExtractionUtils]: 53 out of 70 variables were initially zero. Simplification set additionally 14 variables to zero. [2021-10-13 01:18:00,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:18:00,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:18:00,062 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:18:00,065 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:18:00,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-10-13 01:18:00,098 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-13 01:18:00,098 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:18:00,098 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_substring_~ps2~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_6) = -1*ULTIMATE.start_substring_~ps2~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc13.base)_6 Supporting invariants [] [2021-10-13 01:18:00,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:00,435 INFO L297 tatePredicateManager]: 51 out of 52 supporting invariants were superfluous and have been removed [2021-10-13 01:18:00,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:00,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 01:18:00,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:00,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:18:00,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:00,721 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 01:18:00,721 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-13 01:18:00,722 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 42 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 01:18:00,783 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 42 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 49 states and 57 transitions. Complement of second has 9 states. [2021-10-13 01:18:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:18:00,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 01:18:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-10-13 01:18:00,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 26 letters. Loop has 3 letters. [2021-10-13 01:18:00,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:00,784 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:18:00,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:00,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 01:18:00,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:01,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:18:01,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:01,069 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 01:18:01,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-13 01:18:01,070 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 42 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 01:18:01,139 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 42 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 49 states and 57 transitions. Complement of second has 9 states. [2021-10-13 01:18:01,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:18:01,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 01:18:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 24 transitions. [2021-10-13 01:18:01,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 24 transitions. Stem has 26 letters. Loop has 3 letters. [2021-10-13 01:18:01,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:01,140 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 01:18:01,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:18:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:01,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 01:18:01,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:01,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:18:01,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 01:18:01,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:18:01,417 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 01:18:01,418 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2021-10-13 01:18:01,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 42 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 01:18:01,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:01,504 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 42 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 49 states and 58 transitions. Complement of second has 8 states. [2021-10-13 01:18:01,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 3 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:18:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 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 01:18:01,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2021-10-13 01:18:01,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 26 letters. Loop has 3 letters. [2021-10-13 01:18:01,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:01,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 29 letters. Loop has 3 letters. [2021-10-13 01:18:01,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:01,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 26 letters. Loop has 6 letters. [2021-10-13 01:18:01,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:18:01,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 58 transitions. [2021-10-13 01:18:01,507 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:18:01,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 0 states and 0 transitions. [2021-10-13 01:18:01,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:18:01,507 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:18:01,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:18:01,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:18:01,508 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:18:01,508 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:18:01,508 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:18:01,508 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 01:18:01,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:18:01,508 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:18:01,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:18:01,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:18:01 BoogieIcfgContainer [2021-10-13 01:18:01,514 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:18:01,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:18:01,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:18:01,515 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:18:01,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:17:24" (3/4) ... [2021-10-13 01:18:01,519 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:18:01,519 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:18:01,521 INFO L168 Benchmark]: Toolchain (without parser) took 38313.24 ms. Allocated memory was 102.8 MB in the beginning and 232.8 MB in the end (delta: 130.0 MB). Free memory was 72.9 MB in the beginning and 166.0 MB in the end (delta: -93.1 MB). Peak memory consumption was 35.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:01,521 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:01,522 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.97 ms. Allocated memory is still 102.8 MB. Free memory was 72.9 MB in the beginning and 71.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:01,523 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.44 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 69.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:01,523 INFO L168 Benchmark]: Boogie Preprocessor took 60.44 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 68.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:01,523 INFO L168 Benchmark]: RCFGBuilder took 507.24 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 56.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:01,524 INFO L168 Benchmark]: BuchiAutomizer took 36983.15 ms. Allocated memory was 102.8 MB in the beginning and 232.8 MB in the end (delta: 130.0 MB). Free memory was 56.9 MB in the beginning and 167.0 MB in the end (delta: -110.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:18:01,524 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 232.8 MB. Free memory was 167.0 MB in the beginning and 166.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:18:01,527 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory is still 59.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 669.97 ms. Allocated memory is still 102.8 MB. Free memory was 72.9 MB in the beginning and 71.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.44 ms. Allocated memory is still 102.8 MB. Free memory was 71.6 MB in the beginning and 69.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.44 ms. Allocated memory is still 102.8 MB. Free memory was 69.8 MB in the beginning and 68.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 507.24 ms. Allocated memory is still 102.8 MB. Free memory was 68.3 MB in the beginning and 56.9 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 36983.15 ms. Allocated memory was 102.8 MB in the beginning and 232.8 MB in the end (delta: 130.0 MB). Free memory was 56.9 MB in the beginning and 167.0 MB in the end (delta: -110.1 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 232.8 MB. Free memory was 167.0 MB in the beginning and 166.0 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 12 terminating modules (6 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * i + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -1 * nondetString2 and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * ps and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[nondetString1] + -1 * pt and consists of 6 locations. One nondeterministic module has affine ranking function -2 * ps2 + 3 * unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 12 locations. One nondeterministic module has affine ranking function -1 * ps2 + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 6 locations. 6 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.9s and 13 iterations. TraceHistogramMax:3. Analysis of lassos took 29.8s. Construction of modules took 0.8s. Büchi inclusion checks took 6.0s. Highest rank in rank-based complementation 3. Minimization of det autom 6. Minimization of nondet autom 6. Automata minimization 49.2ms AutomataMinimizationTime, 11 MinimizatonAttempts, 22 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 45 states and ocurred in iteration 7. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 267 SDtfs, 612 SDslu, 621 SDs, 0 SdLazy, 816 SolverSat, 122 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 834.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc3 concLT0 SILN0 SILU2 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital331 mio100 ax107 hnf99 lsp89 ukn68 mio100 lsp51 div100 bol100 ite100 ukn100 eq186 hnf89 smp96 dnf155 smp89 tf100 neg97 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 202ms VariablesStem: 3 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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 01:18:01,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-10-13 01:18:01,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-10-13 01:18:02,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63e52745-4331-4c41-95b4-1a6f9f944513/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...