./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:48:30,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:48:30,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:48:30,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:48:30,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:48:30,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:48:30,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:48:30,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:48:30,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:48:30,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:48:30,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:48:30,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:48:30,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:48:30,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:48:30,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:48:30,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:48:30,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:48:30,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:48:30,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:48:30,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:48:31,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:48:31,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:48:31,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:48:31,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:48:31,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:48:31,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:48:31,010 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:48:31,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:48:31,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:48:31,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:48:31,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:48:31,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:48:31,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:48:31,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:48:31,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:48:31,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:48:31,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:48:31,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:48:31,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:48:31,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:48:31,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:48:31,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 17:48:31,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:48:31,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:48:31,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:48:31,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:48:31,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:48:31,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:48:31,046 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:48:31,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 17:48:31,047 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 17:48:31,047 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 17:48:31,047 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 17:48:31,047 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 17:48:31,047 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 17:48:31,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:48:31,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 17:48:31,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:48:31,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:48:31,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 17:48:31,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 17:48:31,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 17:48:31,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:48:31,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 17:48:31,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:48:31,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 17:48:31,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:48:31,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:48:31,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:48:31,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:48:31,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:48:31,050 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 17:48:31,050 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_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00bfc508b8ea24f88f85b042e795fbae14e8287990a04ebdf542583ad129e19a [2021-12-06 17:48:31,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:48:31,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:48:31,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:48:31,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:48:31,264 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:48:31,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2021-12-06 17:48:31,317 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/data/1c47cb76b/9f3a37449a274c30a4fef1c5cb13509d/FLAG983e8df5c [2021-12-06 17:48:31,760 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:48:31,760 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/sv-benchmarks/c/termination-15/count_up_and_down_alloca.i [2021-12-06 17:48:31,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/data/1c47cb76b/9f3a37449a274c30a4fef1c5cb13509d/FLAG983e8df5c [2021-12-06 17:48:31,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/data/1c47cb76b/9f3a37449a274c30a4fef1c5cb13509d [2021-12-06 17:48:31,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:48:31,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:48:31,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:48:31,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:48:31,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:48:31,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:48:31" (1/1) ... [2021-12-06 17:48:31,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c144add and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:31, skipping insertion in model container [2021-12-06 17:48:31,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:48:31" (1/1) ... [2021-12-06 17:48:31,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:48:31,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:48:32,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:48:32,017 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:48:32,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:48:32,064 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:48:32,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32 WrapperNode [2021-12-06 17:48:32,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:48:32,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:48:32,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:48:32,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:48:32,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,104 INFO L137 Inliner]: procedures = 151, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2021-12-06 17:48:32,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:48:32,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:48:32,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:48:32,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:48:32,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:48:32,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:48:32,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:48:32,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:48:32,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (1/1) ... [2021-12-06 17:48:32,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:32,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:32,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:32,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 17:48:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 17:48:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 17:48:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 17:48:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 17:48:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:48:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:48:32,238 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:48:32,239 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:48:32,326 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:48:32,331 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:48:32,331 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-06 17:48:32,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:48:32 BoogieIcfgContainer [2021-12-06 17:48:32,332 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:48:32,333 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 17:48:32,333 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 17:48:32,335 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 17:48:32,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:48:32,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 05:48:31" (1/3) ... [2021-12-06 17:48:32,336 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b324ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:48:32, skipping insertion in model container [2021-12-06 17:48:32,336 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:48:32,336 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:48:32" (2/3) ... [2021-12-06 17:48:32,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b324ba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 05:48:32, skipping insertion in model container [2021-12-06 17:48:32,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 17:48:32,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:48:32" (3/3) ... [2021-12-06 17:48:32,338 INFO L388 chiAutomizerObserver]: Analyzing ICFG count_up_and_down_alloca.i [2021-12-06 17:48:32,369 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 17:48:32,369 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 17:48:32,369 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 17:48:32,369 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 17:48:32,369 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 17:48:32,369 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 17:48:32,369 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 17:48:32,369 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 17:48:32,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:32,396 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 17:48:32,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:32,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:32,402 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 17:48:32,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:32,403 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 17:48:32,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:32,405 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-12-06 17:48:32,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:32,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:32,405 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-12-06 17:48:32,406 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:32,411 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 15#L367true assume !(main_~length~0#1 < 1); 12#L367-2true call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 8#L369true assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 3#L371-3true [2021-12-06 17:48:32,411 INFO L793 eck$LassoCheckResult]: Loop: 3#L371-3true assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 14#L371-2true main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 3#L371-3true [2021-12-06 17:48:32,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:32,417 INFO L85 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2021-12-06 17:48:32,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:32,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087057446] [2021-12-06 17:48:32,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:32,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:32,509 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:32,544 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:32,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:32,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1667, now seen corresponding path program 1 times [2021-12-06 17:48:32,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:32,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845157047] [2021-12-06 17:48:32,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:32,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:32,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:32,561 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:32,568 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:32,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:32,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815563, now seen corresponding path program 1 times [2021-12-06 17:48:32,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:32,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958507091] [2021-12-06 17:48:32,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:32,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:32,588 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:32,605 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:32,826 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:48:32,827 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:48:32,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:48:32,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:48:32,827 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:48:32,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:32,828 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:48:32,828 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:48:32,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration1_Lasso [2021-12-06 17:48:32,828 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:48:32,828 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:48:32,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:32,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,101 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:48:33,104 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:48:33,105 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,106 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 17:48:33,107 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 [2021-12-06 17:48:33,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:33,122 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:33,126 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:33,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 17:48:33,150 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 [2021-12-06 17:48:33,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,178 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 17:48:33,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,180 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 17:48:33,182 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 [2021-12-06 17:48:33,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 17:48:33,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,210 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 17:48:33,211 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 [2021-12-06 17:48:33,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,219 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,219 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,220 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 17:48:33,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,240 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 17:48:33,244 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 [2021-12-06 17:48:33,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,252 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 17:48:33,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,273 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 17:48:33,275 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 [2021-12-06 17:48:33,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,282 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,283 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 17:48:33,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,303 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 17:48:33,305 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 [2021-12-06 17:48:33,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 17:48:33,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,334 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 17:48:33,335 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 [2021-12-06 17:48:33,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,343 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,343 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,343 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,363 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 17:48:33,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,364 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 17:48:33,365 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 [2021-12-06 17:48:33,372 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 17:48:33,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 17:48:33,395 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 [2021-12-06 17:48:33,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:33,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:33,403 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:33,404 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:33,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,424 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 17:48:33,425 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 [2021-12-06 17:48:33,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:33,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:33,439 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:33,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:33,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,459 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 17:48:33,460 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 [2021-12-06 17:48:33,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:33,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:33,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:33,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:33,472 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:33,472 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:33,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:48:33,495 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-06 17:48:33,495 INFO L444 ModelExtractionUtils]: 16 out of 22 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-12-06 17:48:33,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:33,497 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:33,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 17:48:33,506 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:48:33,514 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:48:33,514 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:48:33,514 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~length~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~length~0#1 Supporting invariants [] [2021-12-06 17:48:33,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 17:48:33,553 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2021-12-06 17:48:33,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:33,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:48:33,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:33,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:48:33,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:33,636 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 [2021-12-06 17:48:33,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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) [2021-12-06 17:48:33,678 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). 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 39 states and 54 transitions. Complement of second has 7 states. [2021-12-06 17:48:33,680 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 [2021-12-06 17:48:33,684 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) [2021-12-06 17:48:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2021-12-06 17:48:33,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 2 letters. [2021-12-06 17:48:33,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:33,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 7 letters. Loop has 2 letters. [2021-12-06 17:48:33,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:33,687 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 5 letters. Loop has 4 letters. [2021-12-06 17:48:33,687 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:33,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 54 transitions. [2021-12-06 17:48:33,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 17:48:33,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 17 transitions. [2021-12-06 17:48:33,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 17:48:33,693 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-06 17:48:33,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2021-12-06 17:48:33,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:48:33,693 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-06 17:48:33,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2021-12-06 17:48:33,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-12-06 17:48:33,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:33,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2021-12-06 17:48:33,715 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-06 17:48:33,715 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2021-12-06 17:48:33,715 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 17:48:33,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2021-12-06 17:48:33,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 17:48:33,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:33,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:33,716 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:33,716 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 17:48:33,717 INFO L791 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 126#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 131#L367 assume !(main_~length~0#1 < 1); 129#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 130#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 119#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 120#L371-4 main_~j~0#1 := 0; 124#L374-3 [2021-12-06 17:48:33,717 INFO L793 eck$LassoCheckResult]: Loop: 124#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 127#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 128#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 123#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 124#L374-3 [2021-12-06 17:48:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:33,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815505, now seen corresponding path program 1 times [2021-12-06 17:48:33,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:33,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441947136] [2021-12-06 17:48:33,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:33,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:33,730 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:33,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:33,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:33,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2036812, now seen corresponding path program 1 times [2021-12-06 17:48:33,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:33,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967378435] [2021-12-06 17:48:33,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:33,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:33,748 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:33,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:33,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1386095268, now seen corresponding path program 1 times [2021-12-06 17:48:33,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:33,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824418415] [2021-12-06 17:48:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:33,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:33,771 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:33,787 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:33,924 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:48:33,924 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:48:33,924 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:48:33,924 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:48:33,924 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:48:33,925 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:33,925 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:48:33,925 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:48:33,925 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration2_Lasso [2021-12-06 17:48:33,925 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:48:33,925 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:48:33,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,932 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:33,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:34,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:34,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:34,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:34,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 17:48:34,125 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:48:34,126 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:48:34,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,127 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 17:48:34,128 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 [2021-12-06 17:48:34,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:34,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:34,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:34,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:34,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,156 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 17:48:34,157 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 [2021-12-06 17:48:34,164 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:34,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:34,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 17:48:34,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,201 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 17:48:34,203 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 [2021-12-06 17:48:34,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:34,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:34,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:34,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-12-06 17:48:34,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,232 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 17:48:34,234 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 [2021-12-06 17:48:34,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,242 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:34,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:34,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:34,243 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:34,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,264 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 17:48:34,265 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 [2021-12-06 17:48:34,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:34,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:34,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:34,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:34,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,309 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 17:48:34,311 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 [2021-12-06 17:48:34,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:34,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,318 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:34,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:34,319 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:34,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,339 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 17:48:34,341 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 [2021-12-06 17:48:34,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,348 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:34,348 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,348 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,348 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:34,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:34,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:34,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 17:48:34,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,369 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 17:48:34,370 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 [2021-12-06 17:48:34,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:34,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:34,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:34,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:34,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:34,382 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:34,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:48:34,408 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-06 17:48:34,408 INFO L444 ModelExtractionUtils]: 10 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. [2021-12-06 17:48:34,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:34,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,409 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 17:48:34,410 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:48:34,419 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:48:34,419 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:48:34,420 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0#1.offset, ULTIMATE.start_main_~j~0#1, v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_2) = -1*ULTIMATE.start_main_~arr~0#1.offset - 4*ULTIMATE.start_main_~j~0#1 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0#1.base)_2 Supporting invariants [] [2021-12-06 17:48:34,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 17:48:34,452 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2021-12-06 17:48:34,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:34,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:48:34,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:34,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 17:48:34,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:34,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:34,495 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 [2021-12-06 17:48:34,496 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:34,509 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 25 transitions. Complement of second has 6 states. [2021-12-06 17:48:34,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:34,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-06 17:48:34,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 4 letters. [2021-12-06 17:48:34,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:34,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 11 letters. Loop has 4 letters. [2021-12-06 17:48:34,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:34,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 8 letters. [2021-12-06 17:48:34,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:34,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 25 transitions. [2021-12-06 17:48:34,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:34,512 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 18 states and 24 transitions. [2021-12-06 17:48:34,512 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 17:48:34,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-06 17:48:34,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2021-12-06 17:48:34,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:34,512 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2021-12-06 17:48:34,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2021-12-06 17:48:34,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2021-12-06 17:48:34,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.375) internal successors, (22), 15 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) [2021-12-06 17:48:34,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2021-12-06 17:48:34,514 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-12-06 17:48:34,514 INFO L587 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2021-12-06 17:48:34,514 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 17:48:34,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2021-12-06 17:48:34,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:34,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:34,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:34,515 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:34,515 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:34,515 INFO L791 eck$LassoCheckResult]: Stem: 231#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 232#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 233#L367 assume !(main_~length~0#1 < 1); 225#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 226#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 219#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 220#L371-4 main_~j~0#1 := 0; 234#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 227#L375-3 [2021-12-06 17:48:34,515 INFO L793 eck$LassoCheckResult]: Loop: 227#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 228#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 227#L375-3 [2021-12-06 17:48:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,515 INFO L85 PathProgramCache]: Analyzing trace with hash 176705843, now seen corresponding path program 1 times [2021-12-06 17:48:34,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:34,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522347961] [2021-12-06 17:48:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:34,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:34,523 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:34,533 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 1 times [2021-12-06 17:48:34,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:34,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711728477] [2021-12-06 17:48:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:34,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:34,539 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:34,543 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:34,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1984375400, now seen corresponding path program 1 times [2021-12-06 17:48:34,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:34,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84702581] [2021-12-06 17:48:34,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:34,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:34,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:34,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:48:34,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84702581] [2021-12-06 17:48:34,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84702581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:48:34,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:48:34,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 17:48:34,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140538933] [2021-12-06 17:48:34,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:48:34,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:48:34,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:48:34,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-06 17:48:34,648 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-12-06 17:48:34,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:48:34,678 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2021-12-06 17:48:34,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 17:48:34,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-12-06 17:48:34,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:34,680 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 32 transitions. [2021-12-06 17:48:34,680 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-06 17:48:34,680 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-06 17:48:34,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 32 transitions. [2021-12-06 17:48:34,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:34,680 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-12-06 17:48:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 32 transitions. [2021-12-06 17:48:34,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 18. [2021-12-06 17:48:34,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-12-06 17:48:34,682 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-06 17:48:34,682 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-12-06 17:48:34,682 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 17:48:34,682 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2021-12-06 17:48:34,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:34,683 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:34,683 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:34,683 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:34,683 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:34,683 INFO L791 eck$LassoCheckResult]: Stem: 285#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 286#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 289#L367 assume !(main_~length~0#1 < 1); 287#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 288#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 277#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 278#L371-4 main_~j~0#1 := 0; 291#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 292#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 290#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 275#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 276#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 281#L375-3 [2021-12-06 17:48:34,683 INFO L793 eck$LassoCheckResult]: Loop: 281#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 282#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 281#L375-3 [2021-12-06 17:48:34,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,684 INFO L85 PathProgramCache]: Analyzing trace with hash -19280312, now seen corresponding path program 2 times [2021-12-06 17:48:34,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:34,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31119553] [2021-12-06 17:48:34,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:34,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:34,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:34,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:48:34,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31119553] [2021-12-06 17:48:34,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31119553] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:48:34,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965005637] [2021-12-06 17:48:34,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:48:34,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:48:34,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:34,715 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:48:34,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-06 17:48:34,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:48:34,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:48:34,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 17:48:34,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:34,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:34,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:48:34,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965005637] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:48:34,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 17:48:34,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-12-06 17:48:34,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391777223] [2021-12-06 17:48:34,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:48:34,908 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:48:34,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,908 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 2 times [2021-12-06 17:48:34,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:34,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243860050] [2021-12-06 17:48:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:34,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:34,912 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:34,915 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:34,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:48:34,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 17:48:34,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-12-06 17:48:34,938 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2021-12-06 17:48:34,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:48:34,978 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2021-12-06 17:48:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 17:48:34,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2021-12-06 17:48:34,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:34,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 22 transitions. [2021-12-06 17:48:34,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 17:48:34,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-06 17:48:34,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 22 transitions. [2021-12-06 17:48:34,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:34,982 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-12-06 17:48:34,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 22 transitions. [2021-12-06 17:48:34,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-12-06 17:48:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-12-06 17:48:34,984 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-06 17:48:34,984 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-06 17:48:34,984 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 17:48:34,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-12-06 17:48:34,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:34,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:34,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:34,985 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:34,986 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:34,986 INFO L791 eck$LassoCheckResult]: Stem: 390#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 391#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 394#L367 assume !(main_~length~0#1 < 1); 392#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 393#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 380#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 381#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 382#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 383#L371-4 main_~j~0#1 := 0; 395#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 388#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 389#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 384#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 385#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 386#L375-3 [2021-12-06 17:48:34,986 INFO L793 eck$LassoCheckResult]: Loop: 386#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 387#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 386#L375-3 [2021-12-06 17:48:34,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:34,986 INFO L85 PathProgramCache]: Analyzing trace with hash -744742010, now seen corresponding path program 1 times [2021-12-06 17:48:34,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:34,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950921728] [2021-12-06 17:48:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:34,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:35,008 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:35,022 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 3 times [2021-12-06 17:48:35,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:35,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340475521] [2021-12-06 17:48:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:35,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:35,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 17:48:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:35,028 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:35,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:35,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:35,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1562468139, now seen corresponding path program 1 times [2021-12-06 17:48:35,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:35,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784932302] [2021-12-06 17:48:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:35,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:35,048 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:35,064 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:35,251 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:48:35,251 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:48:35,251 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:48:35,252 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:48:35,252 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:48:35,252 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:35,252 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:48:35,252 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:48:35,252 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration5_Lasso [2021-12-06 17:48:35,252 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:48:35,252 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:48:35,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:35,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:48:35,456 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:48:35,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:35,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:35,456 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:35,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 17:48:35,460 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 [2021-12-06 17:48:35,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:35,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:35,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:35,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:35,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:35,468 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:35,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:35,469 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:35,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 17:48:35,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:35,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:35,488 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:35,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 17:48:35,489 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 [2021-12-06 17:48:35,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:35,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:35,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:35,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:35,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:35,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:35,497 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:35,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:35,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 17:48:35,516 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:35,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:35,516 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:35,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 17:48:35,517 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 [2021-12-06 17:48:35,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:35,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:35,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:35,525 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:35,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:35,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:35,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:35,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 17:48:35,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:35,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:35,549 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:35,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 17:48:35,551 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 [2021-12-06 17:48:35,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:35,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:35,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:35,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:35,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:35,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:35,568 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:48:35,580 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2021-12-06 17:48:35,581 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-06 17:48:35,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:35,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:35,582 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:35,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 17:48:35,583 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:48:35,593 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:48:35,593 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:48:35,593 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 4))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 4))_1 Supporting invariants [] [2021-12-06 17:48:35,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 17:48:35,620 INFO L297 tatePredicateManager]: 5 out of 6 supporting invariants were superfluous and have been removed [2021-12-06 17:48:35,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:48:35,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:35,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:35,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 17:48:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:35,696 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 [2021-12-06 17:48:35,697 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-06 17:48:35,711 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) Result 18 states and 21 transitions. Complement of second has 4 states. [2021-12-06 17:48:35,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:35,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-06 17:48:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 17:48:35,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-06 17:48:35,713 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:35,713 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:48:35,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:48:35,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:35,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:35,786 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 [2021-12-06 17:48:35,786 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-06 17:48:35,803 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) Result 18 states and 21 transitions. Complement of second has 4 states. [2021-12-06 17:48:35,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:35,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-06 17:48:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 17:48:35,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-06 17:48:35,804 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:35,804 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:48:35,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 17:48:35,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:35,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:35,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:35,876 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 [2021-12-06 17:48:35,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-06 17:48:35,916 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 6. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) Result 32 states and 38 transitions. Complement of second has 10 states. [2021-12-06 17:48:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 3 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 17:48:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 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) [2021-12-06 17:48:35,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2021-12-06 17:48:35,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 14 letters. Loop has 2 letters. [2021-12-06 17:48:35,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:35,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 16 letters. Loop has 2 letters. [2021-12-06 17:48:35,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:35,919 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 14 letters. Loop has 4 letters. [2021-12-06 17:48:35,919 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:35,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 38 transitions. [2021-12-06 17:48:35,920 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:35,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 27 states and 31 transitions. [2021-12-06 17:48:35,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-06 17:48:35,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-06 17:48:35,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 31 transitions. [2021-12-06 17:48:35,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:35,921 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-12-06 17:48:35,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 31 transitions. [2021-12-06 17:48:35,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2021-12-06 17:48:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.173913043478261) internal successors, (27), 22 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) [2021-12-06 17:48:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-06 17:48:35,924 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-06 17:48:35,924 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-06 17:48:35,924 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 17:48:35,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2021-12-06 17:48:35,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:35,925 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:35,925 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:35,926 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:35,926 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:35,926 INFO L791 eck$LassoCheckResult]: Stem: 699#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 700#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 703#L367 assume !(main_~length~0#1 < 1); 701#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 702#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 689#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 690#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 691#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 692#L371-4 main_~j~0#1 := 0; 706#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 707#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 710#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 709#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 708#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 705#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 711#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 693#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 694#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 695#L375-3 [2021-12-06 17:48:35,926 INFO L793 eck$LassoCheckResult]: Loop: 695#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 696#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 695#L375-3 [2021-12-06 17:48:35,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:35,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1706672357, now seen corresponding path program 2 times [2021-12-06 17:48:35,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:35,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999535072] [2021-12-06 17:48:35,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:35,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:35,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:35,972 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:35,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:48:35,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999535072] [2021-12-06 17:48:35,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999535072] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:48:35,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666072026] [2021-12-06 17:48:35,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:48:35,973 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:48:35,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:35,973 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:48:35,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-12-06 17:48:36,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:48:36,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:48:36,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:48:36,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:36,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:48:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:36,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666072026] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:48:36,084 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:48:36,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2021-12-06 17:48:36,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111727315] [2021-12-06 17:48:36,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:48:36,085 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:48:36,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 4 times [2021-12-06 17:48:36,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:36,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281561806] [2021-12-06 17:48:36,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:36,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,089 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,092 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:36,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:48:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 17:48:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-12-06 17:48:36,113 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. cyclomatic complexity: 8 Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 12 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:48:36,168 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2021-12-06 17:48:36,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 17:48:36,168 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 42 transitions. [2021-12-06 17:48:36,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:36,169 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 26 states and 30 transitions. [2021-12-06 17:48:36,169 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-06 17:48:36,169 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-06 17:48:36,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 30 transitions. [2021-12-06 17:48:36,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:36,170 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-12-06 17:48:36,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 30 transitions. [2021-12-06 17:48:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-12-06 17:48:36,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.16) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-12-06 17:48:36,171 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-06 17:48:36,171 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-06 17:48:36,171 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 17:48:36,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 29 transitions. [2021-12-06 17:48:36,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:36,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:36,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:36,172 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:36,172 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:36,172 INFO L791 eck$LassoCheckResult]: Stem: 886#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 887#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 889#L367 assume !(main_~length~0#1 < 1); 880#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 881#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 874#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 875#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 876#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 877#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 888#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 892#L371-4 main_~j~0#1 := 0; 893#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 894#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 898#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 878#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 879#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 891#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 897#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 896#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 895#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 882#L375-3 [2021-12-06 17:48:36,172 INFO L793 eck$LassoCheckResult]: Loop: 882#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 883#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 882#L375-3 [2021-12-06 17:48:36,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:36,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1762185767, now seen corresponding path program 3 times [2021-12-06 17:48:36,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:36,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272186107] [2021-12-06 17:48:36,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:36,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:36,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:48:36,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272186107] [2021-12-06 17:48:36,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272186107] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:48:36,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109017200] [2021-12-06 17:48:36,272 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-06 17:48:36,272 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:48:36,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:36,273 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:48:36,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-12-06 17:48:36,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-06 17:48:36,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:48:36,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-06 17:48:36,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:36,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 17:48:36,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:36,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:36,371 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:48:36,373 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-06 17:48:36,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-12-06 17:48:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:36,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:36,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:36,419 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:48:36,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2021-12-06 17:48:36,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:36,517 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:48:36,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 12 [2021-12-06 17:48:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:36,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:48:36,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 22 treesize of output 20 [2021-12-06 17:48:36,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:48:36,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:48:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109017200] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:48:36,640 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:48:36,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 23 [2021-12-06 17:48:36,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20737269] [2021-12-06 17:48:36,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:48:36,641 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:48:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 5 times [2021-12-06 17:48:36,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:36,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769740916] [2021-12-06 17:48:36,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:36,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,644 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:36,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:36,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:48:36,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-12-06 17:48:36,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2021-12-06 17:48:36,668 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. cyclomatic complexity: 8 Second operand has 23 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 23 states have internal predecessors, (48), 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) [2021-12-06 17:48:36,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:48:36,789 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-12-06 17:48:36,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 17:48:36,790 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2021-12-06 17:48:36,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:36,791 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 47 states and 55 transitions. [2021-12-06 17:48:36,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-06 17:48:36,791 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-06 17:48:36,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 55 transitions. [2021-12-06 17:48:36,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:36,792 INFO L681 BuchiCegarLoop]: Abstraction has 47 states and 55 transitions. [2021-12-06 17:48:36,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 55 transitions. [2021-12-06 17:48:36,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2021-12-06 17:48:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 35 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) [2021-12-06 17:48:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-12-06 17:48:36,794 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-12-06 17:48:36,794 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-12-06 17:48:36,794 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-06 17:48:36,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 42 transitions. [2021-12-06 17:48:36,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:36,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:36,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:36,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:36,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:36,795 INFO L791 eck$LassoCheckResult]: Stem: 1107#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1108#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1111#L367 assume !(main_~length~0#1 < 1); 1109#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1110#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 1099#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 1100#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 1101#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 1102#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 1132#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 1114#L371-4 main_~j~0#1 := 0; 1115#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 1105#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1106#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 1097#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1098#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 1116#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1112#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 1113#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1120#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 1119#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1117#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 1103#L375-3 [2021-12-06 17:48:36,796 INFO L793 eck$LassoCheckResult]: Loop: 1103#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1104#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 1103#L375-3 [2021-12-06 17:48:36,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:36,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1241819266, now seen corresponding path program 2 times [2021-12-06 17:48:36,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:36,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795874570] [2021-12-06 17:48:36,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:36,796 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:36,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,824 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:36,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 6 times [2021-12-06 17:48:36,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:36,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019135153] [2021-12-06 17:48:36,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:36,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,828 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,830 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:36,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:36,831 INFO L85 PathProgramCache]: Analyzing trace with hash 612594979, now seen corresponding path program 3 times [2021-12-06 17:48:36,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:36,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542961487] [2021-12-06 17:48:36,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:36,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,847 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:36,863 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:37,225 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:48:37,225 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:48:37,225 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:48:37,225 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:48:37,225 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:48:37,225 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,226 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:48:37,226 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:48:37,226 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration8_Lasso [2021-12-06 17:48:37,226 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:48:37,226 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:48:37,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:37,531 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:48:37,531 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:48:37,532 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,532 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 17:48:37,535 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 [2021-12-06 17:48:37,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,545 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,545 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,547 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:37,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,566 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 17:48:37,568 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 [2021-12-06 17:48:37,574 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:37,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,575 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:37,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:37,576 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 17:48:37,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,595 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 17:48:37,596 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:48:37,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:37,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:37,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:37,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 17:48:37,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,624 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 17:48:37,625 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 [2021-12-06 17:48:37,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,633 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,638 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:37,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,657 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 17:48:37,658 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 [2021-12-06 17:48:37,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,668 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,668 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-12-06 17:48:37,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,692 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 17:48:37,693 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 [2021-12-06 17:48:37,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-06 17:48:37,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,727 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 17:48:37,728 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 [2021-12-06 17:48:37,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:37,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,777 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 17:48:37,778 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 [2021-12-06 17:48:37,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,786 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:37,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:37,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,807 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 17:48:37,809 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 [2021-12-06 17:48:37,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:37,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:37,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:37,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:37,817 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:37,817 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:37,823 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:48:37,833 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-12-06 17:48:37,833 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-12-06 17:48:37,833 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:37,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:37,834 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:37,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-06 17:48:37,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:48:37,843 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:48:37,844 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:48:37,844 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~i~0#1 4) (- 4)))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~i~0#1 4) (- 4)))_1 Supporting invariants [] [2021-12-06 17:48:37,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-12-06 17:48:37,898 INFO L297 tatePredicateManager]: 16 out of 17 supporting invariants were superfluous and have been removed [2021-12-06 17:48:37,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:37,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 17:48:37,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:38,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:38,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:38,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:38,023 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-12-06 17:48:38,023 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 42 transitions. cyclomatic complexity: 10 Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:38,056 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 42 transitions. cyclomatic complexity: 10. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 44 transitions. Complement of second has 7 states. [2021-12-06 17:48:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 5 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:38,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2021-12-06 17:48:38,057 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 22 letters. Loop has 2 letters. [2021-12-06 17:48:38,057 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:38,057 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:48:38,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:38,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 17:48:38,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:38,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2021-12-06 17:48:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:38,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:38,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:38,209 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2021-12-06 17:48:38,209 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 42 transitions. cyclomatic complexity: 10 Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:38,240 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 42 transitions. cyclomatic complexity: 10. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 38 states and 44 transitions. Complement of second has 7 states. [2021-12-06 17:48:38,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 5 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:38,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:38,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 19 transitions. [2021-12-06 17:48:38,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 19 transitions. Stem has 22 letters. Loop has 2 letters. [2021-12-06 17:48:38,241 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:38,241 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:48:38,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:38,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 17:48:38,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:38,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:38,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:38,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:38,394 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2021-12-06 17:48:38,395 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 42 transitions. cyclomatic complexity: 10 Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:38,474 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 42 transitions. cyclomatic complexity: 10. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 70 states and 83 transitions. Complement of second has 16 states. [2021-12-06 17:48:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 7 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 17:48:38,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:48:38,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 49 transitions. [2021-12-06 17:48:38,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 49 transitions. Stem has 22 letters. Loop has 2 letters. [2021-12-06 17:48:38,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:38,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 49 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-06 17:48:38,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:38,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 49 transitions. Stem has 22 letters. Loop has 4 letters. [2021-12-06 17:48:38,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:38,476 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 83 transitions. [2021-12-06 17:48:38,477 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 17:48:38,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 65 states and 76 transitions. [2021-12-06 17:48:38,478 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-06 17:48:38,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-06 17:48:38,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 76 transitions. [2021-12-06 17:48:38,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:38,479 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 76 transitions. [2021-12-06 17:48:38,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 76 transitions. [2021-12-06 17:48:38,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 45. [2021-12-06 17:48:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 44 states have internal predecessors, (52), 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) [2021-12-06 17:48:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2021-12-06 17:48:38,483 INFO L704 BuchiCegarLoop]: Abstraction has 45 states and 52 transitions. [2021-12-06 17:48:38,483 INFO L587 BuchiCegarLoop]: Abstraction has 45 states and 52 transitions. [2021-12-06 17:48:38,483 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-12-06 17:48:38,483 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 52 transitions. [2021-12-06 17:48:38,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:38,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:38,484 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:38,484 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:38,484 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:38,484 INFO L791 eck$LassoCheckResult]: Stem: 1661#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1662#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 1671#L367 assume !(main_~length~0#1 < 1); 1663#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 1664#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 1655#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 1656#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 1657#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 1658#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 1697#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 1698#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 1699#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 1696#L371-4 main_~j~0#1 := 0; 1694#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 1692#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1690#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 1688#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1676#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 1677#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1683#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 1684#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1681#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 1680#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 1678#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 1665#L375-3 [2021-12-06 17:48:38,485 INFO L793 eck$LassoCheckResult]: Loop: 1665#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 1666#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 1665#L375-3 [2021-12-06 17:48:38,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash -17123524, now seen corresponding path program 4 times [2021-12-06 17:48:38,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:38,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406178646] [2021-12-06 17:48:38,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:38,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:38,500 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:38,511 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:38,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:38,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 7 times [2021-12-06 17:48:38,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324924195] [2021-12-06 17:48:38,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:38,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:38,514 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:38,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:38,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:38,517 INFO L85 PathProgramCache]: Analyzing trace with hash 724163937, now seen corresponding path program 5 times [2021-12-06 17:48:38,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:38,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041212535] [2021-12-06 17:48:38,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:38,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:38,529 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:38,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:38,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:39,369 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:48:39,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:48:39,369 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:48:39,369 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:48:39,369 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:48:39,369 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:48:39,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:48:39,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration9_Lasso [2021-12-06 17:48:39,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:48:39,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:48:39,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:48:39,667 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:48:39,667 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:48:39,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,668 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-06 17:48:39,668 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 [2021-12-06 17:48:39,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,676 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-12-06 17:48:39,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,695 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-06 17:48:39,696 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 [2021-12-06 17:48:39,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,703 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,704 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,705 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:39,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,723 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-06 17:48:39,724 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 [2021-12-06 17:48:39,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,732 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:39,732 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:39,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-06 17:48:39,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,753 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-06 17:48:39,755 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 [2021-12-06 17:48:39,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-12-06 17:48:39,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,783 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-06 17:48:39,784 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 [2021-12-06 17:48:39,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,792 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-06 17:48:39,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,812 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-06 17:48:39,813 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 [2021-12-06 17:48:39,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,820 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,839 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-06 17:48:39,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,840 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-06 17:48:39,842 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 [2021-12-06 17:48:39,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:39,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:39,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-06 17:48:39,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,872 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-06 17:48:39,873 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 [2021-12-06 17:48:39,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,880 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,880 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,880 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,881 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-06 17:48:39,899 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,899 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-06 17:48:39,901 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 [2021-12-06 17:48:39,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,907 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-12-06 17:48:39,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,927 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-06 17:48:39,928 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 [2021-12-06 17:48:39,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:48:39,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:48:39,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:48:39,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,956 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-12-06 17:48:39,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,956 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-06 17:48:39,958 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 [2021-12-06 17:48:39,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,966 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:39,966 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:39,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:39,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-06 17:48:39,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:39,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:39,988 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:39,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-06 17:48:39,990 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 [2021-12-06 17:48:39,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:39,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:39,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:39,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:39,998 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:39,998 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:40,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:40,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-12-06 17:48:40,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:40,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,021 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-06 17:48:40,022 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 [2021-12-06 17:48:40,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:40,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:40,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:40,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:40,030 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:40,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:40,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:40,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-06 17:48:40,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:40,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,051 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-06 17:48:40,052 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 [2021-12-06 17:48:40,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:40,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:40,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:40,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:40,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:40,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:40,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:40,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-06 17:48:40,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:40,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,084 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-06 17:48:40,086 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 [2021-12-06 17:48:40,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:40,095 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:40,095 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:40,095 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:40,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:40,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:40,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:40,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-06 17:48:40,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:40,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,124 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-06 17:48:40,125 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 [2021-12-06 17:48:40,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:40,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:40,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:40,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:40,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:40,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:40,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:48:40,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-06 17:48:40,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:40,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,154 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-06 17:48:40,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:48:40,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:48:40,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:48:40,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:48:40,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:48:40,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:48:40,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:48:40,169 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:48:40,176 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-06 17:48:40,177 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-12-06 17:48:40,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:48:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,177 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-06 17:48:40,178 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:48:40,187 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:48:40,188 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:48:40,188 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 8))_1) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset 8))_1 Supporting invariants [] [2021-12-06 17:48:40,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-06 17:48:40,256 INFO L297 tatePredicateManager]: 22 out of 23 supporting invariants were superfluous and have been removed [2021-12-06 17:48:40,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:40,345 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-06 17:48:40,345 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 52 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-12-06 17:48:40,360 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 52 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) Result 45 states and 52 transitions. Complement of second has 4 states. [2021-12-06 17:48:40,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:40,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-12-06 17:48:40,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 17:48:40,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-06 17:48:40,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:40,361 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:48:40,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-06 17:48:40,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:40,460 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-06 17:48:40,460 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 52 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-12-06 17:48:40,473 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 52 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) Result 45 states and 52 transitions. Complement of second has 4 states. [2021-12-06 17:48:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 2 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:48:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-12-06 17:48:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2021-12-06 17:48:40,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-06 17:48:40,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:40,474 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:48:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:40,566 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-06 17:48:40,566 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 52 transitions. cyclomatic complexity: 12 Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-12-06 17:48:40,613 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 52 transitions. cyclomatic complexity: 12. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) Result 68 states and 81 transitions. Complement of second has 12 states. [2021-12-06 17:48:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 17:48:40,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2021-12-06 17:48:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 35 transitions. [2021-12-06 17:48:40,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 24 letters. Loop has 2 letters. [2021-12-06 17:48:40,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:40,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 26 letters. Loop has 2 letters. [2021-12-06 17:48:40,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:40,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 35 transitions. Stem has 24 letters. Loop has 4 letters. [2021-12-06 17:48:40,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:48:40,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 81 transitions. [2021-12-06 17:48:40,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:40,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 61 states and 71 transitions. [2021-12-06 17:48:40,616 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-12-06 17:48:40,616 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-06 17:48:40,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 71 transitions. [2021-12-06 17:48:40,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:40,617 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 71 transitions. [2021-12-06 17:48:40,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 71 transitions. [2021-12-06 17:48:40,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 41. [2021-12-06 17:48:40,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.170731707317073) internal successors, (48), 40 states have internal predecessors, (48), 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) [2021-12-06 17:48:40,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2021-12-06 17:48:40,619 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-12-06 17:48:40,619 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 48 transitions. [2021-12-06 17:48:40,619 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-12-06 17:48:40,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 48 transitions. [2021-12-06 17:48:40,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:40,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:40,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:40,620 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:40,620 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:40,620 INFO L791 eck$LassoCheckResult]: Stem: 2255#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2256#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 2259#L367 assume !(main_~length~0#1 < 1); 2257#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 2258#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 2245#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2246#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2247#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2248#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2268#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 2261#L371-4 main_~j~0#1 := 0; 2262#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2263#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2260#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2249#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2250#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2253#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2254#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 2277#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2276#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2275#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2273#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2271#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2267#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2266#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2264#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2251#L375-3 [2021-12-06 17:48:40,620 INFO L793 eck$LassoCheckResult]: Loop: 2251#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2252#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 2251#L375-3 [2021-12-06 17:48:40,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 293254931, now seen corresponding path program 6 times [2021-12-06 17:48:40,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:40,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865261982] [2021-12-06 17:48:40,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:40,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:40,662 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 17:48:40,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:48:40,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865261982] [2021-12-06 17:48:40,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865261982] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:48:40,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017148164] [2021-12-06 17:48:40,663 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-06 17:48:40,663 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:48:40,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:40,664 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:48:40,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-12-06 17:48:40,700 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-12-06 17:48:40,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:48:40,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:48:40,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 17:48:40,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:48:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 17:48:40,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017148164] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:48:40,798 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:48:40,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2021-12-06 17:48:40,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387103165] [2021-12-06 17:48:40,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:48:40,798 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:48:40,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:40,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 8 times [2021-12-06 17:48:40,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:40,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424287956] [2021-12-06 17:48:40,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:40,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:40,802 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:48:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:48:40,804 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:48:40,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:48:40,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-06 17:48:40,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-12-06 17:48:40,824 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. cyclomatic complexity: 12 Second operand has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 15 states have internal predecessors, (45), 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) [2021-12-06 17:48:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:48:40,885 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2021-12-06 17:48:40,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 17:48:40,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 66 transitions. [2021-12-06 17:48:40,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:40,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 41 states and 47 transitions. [2021-12-06 17:48:40,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-06 17:48:40,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-06 17:48:40,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 47 transitions. [2021-12-06 17:48:40,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:48:40,886 INFO L681 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2021-12-06 17:48:40,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 47 transitions. [2021-12-06 17:48:40,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-12-06 17:48:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 41 states have (on average 1.146341463414634) internal successors, (47), 40 states have internal predecessors, (47), 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) [2021-12-06 17:48:40,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2021-12-06 17:48:40,888 INFO L704 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2021-12-06 17:48:40,888 INFO L587 BuchiCegarLoop]: Abstraction has 41 states and 47 transitions. [2021-12-06 17:48:40,888 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-12-06 17:48:40,888 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 47 transitions. [2021-12-06 17:48:40,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:48:40,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:48:40,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:48:40,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:48:40,889 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:48:40,890 INFO L791 eck$LassoCheckResult]: Stem: 2532#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2533#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 2536#L367 assume !(main_~length~0#1 < 1); 2534#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 2535#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 2524#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2525#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2526#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2527#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2549#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2546#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2544#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 2537#L371-4 main_~j~0#1 := 0; 2538#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2530#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2531#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2522#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2523#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2539#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2555#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 2554#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2553#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2552#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2550#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2547#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2543#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2542#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2540#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2528#L375-3 [2021-12-06 17:48:40,890 INFO L793 eck$LassoCheckResult]: Loop: 2528#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2529#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 2528#L375-3 [2021-12-06 17:48:40,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:48:40,890 INFO L85 PathProgramCache]: Analyzing trace with hash 136841169, now seen corresponding path program 7 times [2021-12-06 17:48:40,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:48:40,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100480524] [2021-12-06 17:48:40,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:48:40,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:48:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:41,006 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:48:41,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100480524] [2021-12-06 17:48:41,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100480524] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:48:41,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366102911] [2021-12-06 17:48:41,006 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-06 17:48:41,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:48:41,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:48:41,007 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:48:41,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-12-06 17:48:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:48:41,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 31 conjunts are in the unsatisfiable core [2021-12-06 17:48:41,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:48:41,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 17:48:41,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:48:41,092 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-06 17:48:41,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-12-06 17:48:41,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:48:41,138 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-06 17:48:41,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 56 [2021-12-06 17:48:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,201 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:48:41,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 50 [2021-12-06 17:48:41,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:48:41,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:48:41,336 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:48:41,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 50 [2021-12-06 17:48:41,407 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:48:41,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2021-12-06 17:48:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:48:41,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:48:53,582 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_134| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_134| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_331 Int)) (<= 1 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_134| 4)) v_ArrVal_331) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) is different from false [2021-12-06 17:49:02,852 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_331 Int) (|v_ULTIMATE.start_main_~i~0#1_134| Int) (v_ArrVal_329 Int) (v_ArrVal_328 Int)) (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse1 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (or (< v_ArrVal_328 (+ (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4) .cse1)) 1)) (< v_ArrVal_329 (+ v_ArrVal_328 1)) (< |v_ULTIMATE.start_main_~i~0#1_134| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (<= 1 (select (store (store (store .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1) v_ArrVal_328) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse1 4) v_ArrVal_329) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_134| 4)) v_ArrVal_331) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) is different from false [2021-12-06 17:49:02,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 29 treesize of output 27 [2021-12-06 17:49:02,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:02,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:02,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 5 not checked. [2021-12-06 17:49:02,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366102911] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:49:02,883 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:49:02,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 12] total 34 [2021-12-06 17:49:02,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467637352] [2021-12-06 17:49:02,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:49:02,883 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:49:02,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:49:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 9 times [2021-12-06 17:49:02,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:49:02,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036916848] [2021-12-06 17:49:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:49:02,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:49:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:49:02,888 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:49:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:49:02,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:49:02,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:49:02,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-12-06 17:49:02,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=869, Unknown=4, NotChecked=122, Total=1122 [2021-12-06 17:49:02,913 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. cyclomatic complexity: 11 Second operand has 34 states, 34 states have (on average 2.088235294117647) internal successors, (71), 34 states have internal predecessors, (71), 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) [2021-12-06 17:49:14,981 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|)) (.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (let ((.cse1 (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4) .cse2)))) (and (<= 0 (select .cse0 |c_ULTIMATE.start_main_~arr~0#1.offset|)) (<= (+ .cse1 1) (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse2))) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_134| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_134| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_331 Int)) (<= 1 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_134| 4)) v_ArrVal_331) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (<= (+ (select .cse0 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse2 (- 8))) 1) .cse1)))) is different from false [2021-12-06 17:49:27,001 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_main_~arr~0#1.offset|)) (.cse1 (select .cse3 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (.cse2 (* 4 |c_ULTIMATE.start_main_~i~0#1|))) (and (<= 0 .cse0) (<= (+ .cse0 1) .cse1) (forall ((|v_ULTIMATE.start_main_~i~0#1_134| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_134| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_331 Int)) (<= 1 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_134| 4)) v_ArrVal_331) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (not (= .cse2 4)) (<= (+ .cse1 1) (select .cse3 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8))) (not (= .cse2 8))))) is different from false [2021-12-06 17:49:27,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:49:27,355 INFO L93 Difference]: Finished difference Result 86 states and 99 transitions. [2021-12-06 17:49:27,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-06 17:49:27,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 86 states and 99 transitions. [2021-12-06 17:49:27,357 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 17:49:27,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 86 states to 82 states and 95 transitions. [2021-12-06 17:49:27,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-12-06 17:49:27,358 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-12-06 17:49:27,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 95 transitions. [2021-12-06 17:49:27,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:49:27,359 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 95 transitions. [2021-12-06 17:49:27,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 95 transitions. [2021-12-06 17:49:27,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 62. [2021-12-06 17:49:27,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 62 states have (on average 1.1451612903225807) internal successors, (71), 61 states have internal predecessors, (71), 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) [2021-12-06 17:49:27,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2021-12-06 17:49:27,363 INFO L704 BuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2021-12-06 17:49:27,363 INFO L587 BuchiCegarLoop]: Abstraction has 62 states and 71 transitions. [2021-12-06 17:49:27,363 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-12-06 17:49:27,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 71 transitions. [2021-12-06 17:49:27,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:49:27,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:49:27,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:49:27,365 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:49:27,365 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:49:27,365 INFO L791 eck$LassoCheckResult]: Stem: 2892#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 2893#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 2897#L367 assume !(main_~length~0#1 < 1); 2894#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 2895#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 2883#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2884#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2885#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2886#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2896#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2908#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2906#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 2907#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 2925#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 2926#L371-4 main_~j~0#1 := 0; 2942#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2941#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2939#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2938#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2901#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2889#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2890#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2927#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2929#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2928#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2912#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 2911#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2905#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 2904#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 2902#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 2887#L375-3 [2021-12-06 17:49:27,365 INFO L793 eck$LassoCheckResult]: Loop: 2887#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 2888#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 2887#L375-3 [2021-12-06 17:49:27,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:49:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash -786085297, now seen corresponding path program 8 times [2021-12-06 17:49:27,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:49:27,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926698036] [2021-12-06 17:49:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:49:27,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:49:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:49:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:49:27,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:49:27,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926698036] [2021-12-06 17:49:27,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926698036] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 17:49:27,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353425571] [2021-12-06 17:49:27,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 17:49:27,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 17:49:27,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:49:27,583 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 17:49:27,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-12-06 17:49:27,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 17:49:27,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 17:49:27,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 34 conjunts are in the unsatisfiable core [2021-12-06 17:49:27,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:49:27,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-06 17:49:27,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:27,666 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-06 17:49:27,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2021-12-06 17:49:27,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:27,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,724 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-06 17:49:27,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 53 [2021-12-06 17:49:27,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:27,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,807 INFO L354 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2021-12-06 17:49:27,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 65 [2021-12-06 17:49:27,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:27,867 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:49:27,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 50 [2021-12-06 17:49:28,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:28,097 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:28,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:28,100 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:49:28,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 68 treesize of output 58 [2021-12-06 17:49:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:28,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 17:49:28,144 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 17:49:28,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 15 [2021-12-06 17:49:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:49:28,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 17:49:40,260 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_141| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_141| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_373 Int)) (<= 2 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_141| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_373) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) is different from false [2021-12-06 17:49:48,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 34 treesize of output 32 [2021-12-06 17:49:48,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:48,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:48,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:48,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 17:49:48,034 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2021-12-06 17:49:48,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353425571] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 17:49:48,034 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 17:49:48,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 40 [2021-12-06 17:49:48,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469582496] [2021-12-06 17:49:48,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 17:49:48,035 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 17:49:48,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:49:48,035 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 10 times [2021-12-06 17:49:48,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:49:48,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060255609] [2021-12-06 17:49:48,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:49:48,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:49:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:49:48,038 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:49:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:49:48,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:49:48,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:49:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-06 17:49:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1272, Unknown=3, NotChecked=74, Total=1560 [2021-12-06 17:49:48,062 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. cyclomatic complexity: 16 Second operand has 40 states, 40 states have (on average 1.95) internal successors, (78), 40 states have internal predecessors, (78), 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) [2021-12-06 17:50:00,167 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~arr~0#1.offset|))) (and (<= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (<= 0 .cse0) (= 3 |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_141| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_141| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_373 Int)) (<= 2 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_141| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_373) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) (<= (+ .cse0 1) (select .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (let ((.cse2 (* |c_ULTIMATE.start_main_~i~0#1| 4))) (<= (+ (select .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| .cse2 (- 8))) 1) (select .cse1 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (- 4) .cse2)))) (<= 0 |c_ULTIMATE.start_main_~arr~0#1.offset|)))) is different from false [2021-12-06 17:50:12,196 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|))) (let ((.cse0 (select .cse3 |c_ULTIMATE.start_main_~arr~0#1.offset|)) (.cse1 (select .cse3 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 4))) (.cse2 (select .cse3 (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))) (and (forall ((v_ArrVal_373 Int) (v_ArrVal_372 Int) (|v_ULTIMATE.start_main_~i~0#1_141| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_141| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (<= 2 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4) v_ArrVal_372) (+ (* |v_ULTIMATE.start_main_~i~0#1_141| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_373) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8))))) (<= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (<= 0 .cse0) (forall ((|v_ULTIMATE.start_main_~i~0#1_141| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_141| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_373 Int)) (<= 2 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_141| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_373) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) (<= (+ .cse0 1) .cse1) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (not (= .cse2 1)) (<= 0 |c_ULTIMATE.start_main_~arr~0#1.offset|) (<= (+ .cse1 1) .cse2)))) is different from false [2021-12-06 17:50:24,307 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_373 Int) (v_ArrVal_372 Int) (|v_ULTIMATE.start_main_~i~0#1_141| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_141| (+ 2 |c_ULTIMATE.start_main_~i~0#1|)) (<= 2 (select (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| (* |c_ULTIMATE.start_main_~i~0#1| 4) 4) v_ArrVal_372) (+ (* |v_ULTIMATE.start_main_~i~0#1_141| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_373) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8))))) (forall ((|v_ULTIMATE.start_main_~i~0#1_141| Int)) (or (< |v_ULTIMATE.start_main_~i~0#1_141| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (forall ((v_ArrVal_373 Int)) (<= 2 (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_141| 4) |c_ULTIMATE.start_main_~arr~0#1.offset|) v_ArrVal_373) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)))))) (<= 3 |c_ULTIMATE.start_main_~i~0#1|) (= |c_ULTIMATE.start_main_~arr~0#1.offset| 0) (not (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~arr~0#1.base|) (+ |c_ULTIMATE.start_main_~arr~0#1.offset| 8)) 1))) is different from false [2021-12-06 17:50:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:50:24,830 INFO L93 Difference]: Finished difference Result 94 states and 106 transitions. [2021-12-06 17:50:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-06 17:50:24,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 106 transitions. [2021-12-06 17:50:24,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:50:24,832 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 90 states and 102 transitions. [2021-12-06 17:50:24,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-06 17:50:24,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-06 17:50:24,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 102 transitions. [2021-12-06 17:50:24,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:50:24,832 INFO L681 BuchiCegarLoop]: Abstraction has 90 states and 102 transitions. [2021-12-06 17:50:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 102 transitions. [2021-12-06 17:50:24,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 46. [2021-12-06 17:50:24,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 45 states have internal predecessors, (53), 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) [2021-12-06 17:50:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2021-12-06 17:50:24,834 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-12-06 17:50:24,835 INFO L587 BuchiCegarLoop]: Abstraction has 46 states and 53 transitions. [2021-12-06 17:50:24,835 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-12-06 17:50:24,835 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 53 transitions. [2021-12-06 17:50:24,835 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:50:24,835 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:50:24,835 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:50:24,836 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:50:24,836 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:50:24,836 INFO L791 eck$LassoCheckResult]: Stem: 3305#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 3306#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 3310#L367 assume !(main_~length~0#1 < 1); 3307#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 3308#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 3297#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 3298#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 3299#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 3300#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 3309#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 3327#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 3325#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 3312#L371-4 main_~j~0#1 := 0; 3313#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 3314#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3332#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 3330#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 3331#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 3303#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3304#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 3311#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3329#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 3295#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 3296#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 3328#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3324#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 3323#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3321#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 3322#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3319#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 3318#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 3316#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 3301#L375-3 [2021-12-06 17:50:24,836 INFO L793 eck$LassoCheckResult]: Loop: 3301#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 3302#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 3301#L375-3 [2021-12-06 17:50:24,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:24,836 INFO L85 PathProgramCache]: Analyzing trace with hash 2103364059, now seen corresponding path program 9 times [2021-12-06 17:50:24,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:50:24,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999011808] [2021-12-06 17:50:24,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:50:24,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:50:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:24,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:50:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:24,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:50:24,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:24,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 11 times [2021-12-06 17:50:24,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:50:24,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681384617] [2021-12-06 17:50:24,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:50:24,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:50:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:24,863 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:50:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:24,865 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:50:24,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:24,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1596734400, now seen corresponding path program 10 times [2021-12-06 17:50:24,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:50:24,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774346113] [2021-12-06 17:50:24,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:50:24,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:50:24,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:24,878 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:50:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:24,890 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:50:26,626 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:50:26,626 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:50:26,626 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:50:26,626 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:50:26,626 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:50:26,626 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:26,626 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:50:26,626 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:50:26,626 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration13_Lasso [2021-12-06 17:50:26,626 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:50:26,626 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:50:26,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:26,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:27,051 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:50:27,051 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:50:27,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,052 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-06 17:50:27,053 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 [2021-12-06 17:50:27,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,062 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-06 17:50:27,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,080 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-06 17:50:27,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:50:27,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,089 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,089 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-06 17:50:27,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,110 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-06 17:50:27,111 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 [2021-12-06 17:50:27,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,118 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,118 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,119 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-06 17:50:27,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,138 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-12-06 17:50:27,139 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 [2021-12-06 17:50:27,145 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,146 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,146 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-12-06 17:50:27,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,166 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-12-06 17:50:27,167 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 [2021-12-06 17:50:27,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,174 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,174 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,174 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-12-06 17:50:27,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,194 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-12-06 17:50:27,195 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 [2021-12-06 17:50:27,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,202 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,202 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,202 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,202 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,203 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,203 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,204 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-12-06 17:50:27,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,223 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-12-06 17:50:27,224 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 [2021-12-06 17:50:27,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,232 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,232 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-12-06 17:50:27,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,252 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-12-06 17:50:27,253 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 [2021-12-06 17:50:27,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,260 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-12-06 17:50:27,279 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,280 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-12-06 17:50:27,281 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 [2021-12-06 17:50:27,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,289 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-12-06 17:50:27,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,311 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-12-06 17:50:27,312 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 [2021-12-06 17:50:27,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:27,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:27,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:27,320 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,337 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-12-06 17:50:27,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,338 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-12-06 17:50:27,340 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 [2021-12-06 17:50:27,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,348 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,348 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-12-06 17:50:27,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,371 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-12-06 17:50:27,372 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 [2021-12-06 17:50:27,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-12-06 17:50:27,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,404 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-12-06 17:50:27,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:50:27,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,413 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,415 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,415 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-12-06 17:50:27,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,439 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-12-06 17:50:27,440 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 [2021-12-06 17:50:27,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,447 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,447 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,447 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,452 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-12-06 17:50:27,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,470 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-12-06 17:50:27,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:50:27,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,481 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,481 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,489 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-12-06 17:50:27,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,507 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-12-06 17:50:27,508 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 [2021-12-06 17:50:27,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-12-06 17:50:27,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,539 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-12-06 17:50:27,540 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 [2021-12-06 17:50:27,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,548 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,548 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,550 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:27,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-12-06 17:50:27,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,569 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-12-06 17:50:27,570 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 [2021-12-06 17:50:27,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:27,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:27,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:27,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:27,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:27,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:27,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:50:27,593 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-12-06 17:50:27,593 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-06 17:50:27,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:27,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:27,594 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:27,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-12-06 17:50:27,595 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:50:27,603 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:50:27,603 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:50:27,603 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~i~0#1 4) (- 4)))_2) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~i~0#1 4) (- 4)))_2 Supporting invariants [] [2021-12-06 17:50:27,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-12-06 17:50:27,698 INFO L297 tatePredicateManager]: 29 out of 30 supporting invariants were superfluous and have been removed [2021-12-06 17:50:27,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:27,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 17:50:27,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:27,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-12-06 17:50:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:27,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:50:27,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:27,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:50:27,915 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 [2021-12-06 17:50:27,915 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 53 transitions. cyclomatic complexity: 12 Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-12-06 17:50:27,956 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 53 transitions. cyclomatic complexity: 12. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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 48 states and 55 transitions. Complement of second has 8 states. [2021-12-06 17:50:27,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 6 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:50:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-12-06 17:50:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2021-12-06 17:50:27,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 32 letters. Loop has 2 letters. [2021-12-06 17:50:27,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:27,957 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:50:27,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:27,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 17:50:27,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:28,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:50:28,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:28,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:50:28,167 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 [2021-12-06 17:50:28,167 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 53 transitions. cyclomatic complexity: 12 Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-12-06 17:50:28,218 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 53 transitions. cyclomatic complexity: 12. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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 48 states and 55 transitions. Complement of second has 8 states. [2021-12-06 17:50:28,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 6 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 17:50:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-12-06 17:50:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2021-12-06 17:50:28,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 32 letters. Loop has 2 letters. [2021-12-06 17:50:28,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:28,219 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:50:28,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:28,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:28,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 17:50:28,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:28,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 17:50:28,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:28,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:50:28,450 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 [2021-12-06 17:50:28,450 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 53 transitions. cyclomatic complexity: 12 Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-12-06 17:50:28,573 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 53 transitions. cyclomatic complexity: 12. Second operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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 88 states and 103 transitions. Complement of second has 19 states. [2021-12-06 17:50:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 9 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 17:50:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.727272727272727) internal successors, (30), 11 states have internal predecessors, (30), 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) [2021-12-06 17:50:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 57 transitions. [2021-12-06 17:50:28,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 57 transitions. Stem has 32 letters. Loop has 2 letters. [2021-12-06 17:50:28,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:28,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 57 transitions. Stem has 34 letters. Loop has 2 letters. [2021-12-06 17:50:28,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:28,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 57 transitions. Stem has 32 letters. Loop has 4 letters. [2021-12-06 17:50:28,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:28,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 103 transitions. [2021-12-06 17:50:28,576 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-12-06 17:50:28,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 83 states and 96 transitions. [2021-12-06 17:50:28,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2021-12-06 17:50:28,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-12-06 17:50:28,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 96 transitions. [2021-12-06 17:50:28,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 17:50:28,577 INFO L681 BuchiCegarLoop]: Abstraction has 83 states and 96 transitions. [2021-12-06 17:50:28,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 96 transitions. [2021-12-06 17:50:28,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 66. [2021-12-06 17:50:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.1363636363636365) internal successors, (75), 65 states have internal predecessors, (75), 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) [2021-12-06 17:50:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2021-12-06 17:50:28,580 INFO L704 BuchiCegarLoop]: Abstraction has 66 states and 75 transitions. [2021-12-06 17:50:28,580 INFO L587 BuchiCegarLoop]: Abstraction has 66 states and 75 transitions. [2021-12-06 17:50:28,580 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-12-06 17:50:28,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 75 transitions. [2021-12-06 17:50:28,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-06 17:50:28,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 17:50:28,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 17:50:28,582 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:50:28,582 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-06 17:50:28,582 INFO L791 eck$LassoCheckResult]: Stem: 4068#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 4069#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet205#1, main_#t~malloc206#1.base, main_#t~malloc206#1.offset, main_#t~mem208#1, main_#t~post207#1, main_#t~mem211#1, main_#t~post212#1, main_#t~mem210#1, main_#t~post209#1, main_~i~0#1, main_~j~0#1, main_~length~0#1, main_~arr~0#1.base, main_~arr~0#1.offset;havoc main_~i~0#1;havoc main_~j~0#1;main_~length~0#1 := main_#t~nondet205#1;havoc main_#t~nondet205#1; 4073#L367 assume !(main_~length~0#1 < 1); 4070#L367-2 call main_#t~malloc206#1.base, main_#t~malloc206#1.offset := #Ultimate.allocOnStack(4 * main_~length~0#1);main_~arr~0#1.base, main_~arr~0#1.offset := main_#t~malloc206#1.base, main_#t~malloc206#1.offset; 4071#L369 assume !(main_~arr~0#1.base == 0 && main_~arr~0#1.offset == 0);call write~int(0, main_~arr~0#1.base, main_~arr~0#1.offset, 4);main_~i~0#1 := 1; 4058#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 4059#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 4060#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 4061#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 4072#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 4080#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 4108#L371-3 assume !!(main_~i~0#1 < main_~length~0#1);call main_#t~mem208#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * (main_~i~0#1 - 1), 4);call write~int(1 + main_#t~mem208#1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~i~0#1, 4);havoc main_#t~mem208#1; 4109#L371-2 main_#t~post207#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post207#1;havoc main_#t~post207#1; 4123#L371-3 assume !(main_~i~0#1 < main_~length~0#1); 4122#L371-4 main_~j~0#1 := 0; 4121#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 4120#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4119#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 4118#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 4076#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 4077#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4117#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 4116#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4115#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 4114#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 4113#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 4112#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4111#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 4110#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4086#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 4085#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4084#L375-1 assume !(main_#t~mem210#1 > 0);havoc main_#t~mem210#1; 4083#L374-2 main_#t~post209#1 := main_~j~0#1;main_~j~0#1 := 1 + main_#t~post209#1;havoc main_#t~post209#1; 4081#L374-3 assume !!(main_~j~0#1 < main_~length~0#1); 4064#L375-3 [2021-12-06 17:50:28,582 INFO L793 eck$LassoCheckResult]: Loop: 4064#L375-3 call main_#t~mem210#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4); 4065#L375-1 assume !!(main_#t~mem210#1 > 0);havoc main_#t~mem210#1;call main_#t~mem211#1 := read~int(main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);main_#t~post212#1 := main_#t~mem211#1;call write~int(main_#t~post212#1 - 1, main_~arr~0#1.base, main_~arr~0#1.offset + 4 * main_~j~0#1, 4);havoc main_#t~mem211#1;havoc main_#t~post212#1; 4064#L375-3 [2021-12-06 17:50:28,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash 867177497, now seen corresponding path program 11 times [2021-12-06 17:50:28,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:50:28,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512189463] [2021-12-06 17:50:28,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:50:28,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:50:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:28,596 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:50:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:28,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:50:28,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:28,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2278, now seen corresponding path program 12 times [2021-12-06 17:50:28,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:50:28,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43470135] [2021-12-06 17:50:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:50:28,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:50:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:28,615 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:50:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:28,618 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:50:28,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:28,618 INFO L85 PathProgramCache]: Analyzing trace with hash 133920510, now seen corresponding path program 12 times [2021-12-06 17:50:28,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:50:28,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525645290] [2021-12-06 17:50:28,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:50:28,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:50:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:28,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:50:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:50:28,648 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:50:31,836 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 17:50:31,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 17:50:31,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 17:50:31,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 17:50:31,836 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 17:50:31,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:31,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 17:50:31,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 17:50:31,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_up_and_down_alloca.i_Iteration14_Lasso [2021-12-06 17:50:31,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 17:50:31,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 17:50:31,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:31,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:32,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:32,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 17:50:32,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 17:50:32,375 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 17:50:32,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,376 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-12-06 17:50:32,377 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 [2021-12-06 17:50:32,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:32,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:32,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:32,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-12-06 17:50:32,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,404 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-12-06 17:50:32,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:50:32,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:32,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:32,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:32,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-12-06 17:50:32,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,432 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-12-06 17:50:32,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:50:32,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:32,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:32,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:32,441 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2021-12-06 17:50:32,460 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,460 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-12-06 17:50:32,461 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 [2021-12-06 17:50:32,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-12-06 17:50:32,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,490 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-12-06 17:50:32,491 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 [2021-12-06 17:50:32,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,498 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:32,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,498 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:32,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:32,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-12-06 17:50:32,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,518 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-12-06 17:50:32,519 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 [2021-12-06 17:50:32,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:32,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,526 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:32,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:32,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-12-06 17:50:32,545 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,545 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-12-06 17:50:32,547 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 [2021-12-06 17:50:32,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 17:50:32,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,554 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 17:50:32,554 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 17:50:32,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-12-06 17:50:32,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,574 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-12-06 17:50:32,575 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 [2021-12-06 17:50:32,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-12-06 17:50:32,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,604 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-12-06 17:50:32,604 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 [2021-12-06 17:50:32,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,612 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,618 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-12-06 17:50:32,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,638 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-12-06 17:50:32,639 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 [2021-12-06 17:50:32,647 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,649 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,649 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-12-06 17:50:32,674 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,675 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-12-06 17:50:32,676 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 [2021-12-06 17:50:32,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-12-06 17:50:32,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,706 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-12-06 17:50:32,707 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 [2021-12-06 17:50:32,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 17:50:32,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-12-06 17:50:32,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,739 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-12-06 17:50:32,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 17:50:32,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 17:50:32,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 17:50:32,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 17:50:32,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 17:50:32,749 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 17:50:32,749 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 17:50:32,754 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 17:50:32,763 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-12-06 17:50:32,763 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-12-06 17:50:32,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 17:50:32,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:50:32,764 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 17:50:32,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-12-06 17:50:32,764 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 17:50:32,772 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 17:50:32,772 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 17:50:32,772 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_6) = 1*v_rep(select (select #memory_int ULTIMATE.start_main_~arr~0#1.base) (+ ULTIMATE.start_main_~arr~0#1.offset (* ULTIMATE.start_main_~j~0#1 4)))_6 Supporting invariants [] [2021-12-06 17:50:32,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-12-06 17:50:32,885 INFO L297 tatePredicateManager]: 38 out of 38 supporting invariants were superfluous and have been removed [2021-12-06 17:50:32,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:32,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:50:32,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:32,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:50:32,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:50:32,954 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 [2021-12-06 17:50:32,954 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:50:32,962 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 81 transitions. Complement of second has 7 states. [2021-12-06 17:50:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 17:50:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:50:32,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-06 17:50:32,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 34 letters. Loop has 2 letters. [2021-12-06 17:50:32,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:32,963 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:50:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:32,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:50:32,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:33,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:50:33,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:50:33,031 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 17:50:33,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:50:33,036 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 72 states and 81 transitions. Complement of second has 7 states. [2021-12-06 17:50:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 17:50:33,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:50:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-06 17:50:33,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 34 letters. Loop has 2 letters. [2021-12-06 17:50:33,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:33,037 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 17:50:33,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:50:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:33,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 17:50:33,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:33,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-12-06 17:50:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:50:33,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 17:50:33,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:50:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:50:33,107 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 17:50:33,108 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:50:33,115 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 66 states and 75 transitions. cyclomatic complexity: 16. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 89 states and 104 transitions. Complement of second has 6 states. [2021-12-06 17:50:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 17:50:33,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 17:50:33,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-12-06 17:50:33,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 34 letters. Loop has 2 letters. [2021-12-06 17:50:33,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:33,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 36 letters. Loop has 2 letters. [2021-12-06 17:50:33,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:33,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 34 letters. Loop has 4 letters. [2021-12-06 17:50:33,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 17:50:33,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 104 transitions. [2021-12-06 17:50:33,117 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:50:33,117 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 0 states and 0 transitions. [2021-12-06 17:50:33,117 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 17:50:33,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 17:50:33,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 17:50:33,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 17:50:33,117 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:50:33,117 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:50:33,117 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 17:50:33,117 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-12-06 17:50:33,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 17:50:33,117 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 17:50:33,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 17:50:33,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 05:50:33 BoogieIcfgContainer [2021-12-06 17:50:33,121 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 17:50:33,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:50:33,122 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:50:33,122 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:50:33,122 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:48:32" (3/4) ... [2021-12-06 17:50:33,124 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:50:33,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:50:33,124 INFO L158 Benchmark]: Toolchain (without parser) took 121343.53ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 82.1MB in the beginning and 118.1MB in the end (delta: -36.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-12-06 17:50:33,124 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:50:33,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.79ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 17:50:33,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.95ms. Allocated memory is still 113.2MB. Free memory was 80.2MB in the beginning and 78.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:50:33,125 INFO L158 Benchmark]: Boogie Preprocessor took 21.29ms. Allocated memory is still 113.2MB. Free memory was 78.0MB in the beginning and 77.1MB in the end (delta: 887.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:50:33,125 INFO L158 Benchmark]: RCFGBuilder took 205.14ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 67.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 17:50:33,126 INFO L158 Benchmark]: BuchiAutomizer took 120788.69ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 67.1MB in the beginning and 119.2MB in the end (delta: -52.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-12-06 17:50:33,126 INFO L158 Benchmark]: Witness Printer took 2.25ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 118.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:50:33,127 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.79ms. Allocated memory is still 113.2MB. Free memory was 81.8MB in the beginning and 80.2MB in the end (delta: 1.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.95ms. Allocated memory is still 113.2MB. Free memory was 80.2MB in the beginning and 78.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.29ms. Allocated memory is still 113.2MB. Free memory was 78.0MB in the beginning and 77.1MB in the end (delta: 887.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 205.14ms. Allocated memory is still 113.2MB. Free memory was 77.1MB in the beginning and 67.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 120788.69ms. Allocated memory was 113.2MB in the beginning and 167.8MB in the end (delta: 54.5MB). Free memory was 67.1MB in the beginning and 119.2MB in the end (delta: -52.1MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Witness Printer took 2.25ms. Allocated memory is still 167.8MB. Free memory was 119.2MB in the beginning and 118.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (7 trivial, 2 deterministic, 5 nondeterministic). One deterministic module has affine ranking function -1 * i + length and consists of 5 locations. One deterministic module has affine ranking function -4 * j + unknown-#length-unknown[arr] + -1 * arr and consists of 4 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + 4] and consists of 7 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + i * 4 + -4] and consists of 11 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + 8] and consists of 8 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + i * 4 + -4] and consists of 13 locations. One nondeterministic module has affine ranking function unknown-#memory_int-unknown[arr][arr + j * 4] and consists of 4 locations. 7 modules have a trivial ranking function, the largest among these consists of 40 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 120.7s and 15 iterations. TraceHistogramMax:6. Analysis of lassos took 56.5s. Construction of modules took 0.8s. Büchi inclusion checks took 63.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 12. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 147 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 66 states and ocurred in iteration 13. Nontrivial modules had stage [2, 0, 5, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 623 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 618 mSDsluCounter, 847 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 305 IncrementalHoareTripleChecker+Unchecked, 631 mSDsCounter, 205 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1825 IncrementalHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 205 mSolverCounterUnsat, 216 mSDtfsCounter, 1825 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU6 SILI0 SILT0 lasso7 LassoPreprocessingBenchmarks: Lassos: inital232 mio100 ax100 hnf99 lsp96 ukn68 mio100 lsp46 div100 bol100 ite100 ukn100 eq167 hnf92 smp94 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 17:50:33,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-12-06 17:50:33,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2021-12-06 17:50:33,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-12-06 17:50:33,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-12-06 17:50:33,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-12-06 17:50:34,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-12-06 17:50:34,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18761c24-5a25-4686-bab1-f366b6616b44/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE