./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-recursive-malloc/mergeSort.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-recursive-malloc/mergeSort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6d71d49c6e185294c0f1f4729e12b8d7df6d1365b5d24a48890a0be5b6780c4 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Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:50:32,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:50:32,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:50:32,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:50:32,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:50:32,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:50:32,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:50:32,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:50:32,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:50:32,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:50:32,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:50:32,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:50:32,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:50:32,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:50:32,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:50:32,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:50:32,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:50:32,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:50:32,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:50:32,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:50:32,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:50:32,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:50:32,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:50:32,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:50:32,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:50:32,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:50:32,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:50:32,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:50:32,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:50:32,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:50:32,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:50:32,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:50:32,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:50:32,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:50:32,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:50:32,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:50:32,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:50:32,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:50:32,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:50:32,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:50:32,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:50:32,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:50:32,239 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:50:32,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:50:32,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:50:32,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:50:32,242 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:50:32,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:50:32,243 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:50:32,243 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:50:32,243 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:50:32,243 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:50:32,245 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:50:32,245 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:50:32,245 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:50:32,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:50:32,246 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:50:32,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:50:32,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:50:32,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:50:32,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:50:32,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:50:32,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:50:32,248 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:50:32,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:50:32,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:50:32,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:50:32,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:50:32,252 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:50:32,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:50:32,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:50:32,254 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:50:32,254 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_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6d71d49c6e185294c0f1f4729e12b8d7df6d1365b5d24a48890a0be5b6780c4 [2021-10-28 23:50:32,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:50:32,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:50:32,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:50:32,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:50:32,610 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:50:32,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-recursive-malloc/mergeSort.i [2021-10-28 23:50:32,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/data/1c6beccc0/a5857652ffc74a51b9598ae3206558a7/FLAGeca2aedff [2021-10-28 23:50:33,253 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:50:33,254 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/sv-benchmarks/c/termination-recursive-malloc/mergeSort.i [2021-10-28 23:50:33,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/data/1c6beccc0/a5857652ffc74a51b9598ae3206558a7/FLAGeca2aedff [2021-10-28 23:50:33,607 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/data/1c6beccc0/a5857652ffc74a51b9598ae3206558a7 [2021-10-28 23:50:33,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:50:33,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:50:33,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:50:33,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:50:33,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:50:33,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:50:33" (1/1) ... [2021-10-28 23:50:33,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28517bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:33, skipping insertion in model container [2021-10-28 23:50:33,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:50:33" (1/1) ... [2021-10-28 23:50:33,640 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:50:33,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:50:33,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:50:33,978 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:50:34,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:50:34,053 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:50:34,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34 WrapperNode [2021-10-28 23:50:34,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:50:34,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:50:34,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:50:34,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:50:34,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:50:34,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:50:34,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:50:34,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:50:34,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:50:34,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:50:34,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:50:34,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:50:34,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:34,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:34,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:50:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:50:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure merge_sort [2021-10-28 23:50:34,294 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_sort [2021-10-28 23:50:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 23:50:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:50:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:50:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:50:34,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:50:34,600 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:50:34,601 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-28 23:50:34,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:50:34 BoogieIcfgContainer [2021-10-28 23:50:34,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:50:34,604 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:50:34,604 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:50:34,623 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:50:34,624 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:50:34,624 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:50:33" (1/3) ... [2021-10-28 23:50:34,625 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bedc74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:50:34, skipping insertion in model container [2021-10-28 23:50:34,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:50:34,626 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (2/3) ... [2021-10-28 23:50:34,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5bedc74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:50:34, skipping insertion in model container [2021-10-28 23:50:34,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:50:34,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:50:34" (3/3) ... [2021-10-28 23:50:34,628 INFO L389 chiAutomizerObserver]: Analyzing ICFG mergeSort.i [2021-10-28 23:50:34,732 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:50:34,732 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:50:34,732 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:50:34,733 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:50:34,733 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:50:34,733 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:50:34,733 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:50:34,733 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:50:34,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:50:34,782 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:50:34,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:34,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:34,789 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:50:34,790 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:50:34,790 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:50:34,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 29 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-28 23:50:34,797 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 16 [2021-10-28 23:50:34,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:34,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:34,798 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:50:34,798 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:50:34,806 INFO L791 eck$LassoCheckResult]: Stem: 19#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 16#L35true assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 11#L40-3true [2021-10-28 23:50:34,807 INFO L793 eck$LassoCheckResult]: Loop: 11#L40-3true assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 12#L40-2true main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 11#L40-3true [2021-10-28 23:50:34,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:34,816 INFO L85 PathProgramCache]: Analyzing trace with hash 88447, now seen corresponding path program 1 times [2021-10-28 23:50:34,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:34,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569725152] [2021-10-28 23:50:34,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:34,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:34,929 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:34,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:34,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:34,967 INFO L85 PathProgramCache]: Analyzing trace with hash 3331, now seen corresponding path program 1 times [2021-10-28 23:50:34,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:34,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419486441] [2021-10-28 23:50:34,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:34,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:34,983 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:34,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:34,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:34,998 INFO L85 PathProgramCache]: Analyzing trace with hash 84999937, now seen corresponding path program 1 times [2021-10-28 23:50:34,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:34,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494608842] [2021-10-28 23:50:34,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:34,999 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:35,024 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:35,047 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:35,394 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:50:35,402 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:50:35,402 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:50:35,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:50:35,402 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:50:35,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:35,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:50:35,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:50:35,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration1_Lasso [2021-10-28 23:50:35,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:50:35,403 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:50:35,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:35,791 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:50:35,797 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:50:35,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:35,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:35,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:35,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:35,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:35,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:35,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:35,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:35,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:35,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:35,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:35,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:50:35,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:35,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:35,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:35,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:35,883 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:35,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:35,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:50:35,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:35,900 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:35,900 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:35,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:35,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:35,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:35,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:35,911 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:35,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:35,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:35,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:35,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:35,952 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:35,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:35,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:35,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:35,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:35,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:35,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:35,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:50:35,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:36,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-28 23:50:36,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,037 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:50:36,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:36,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:36,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:36,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:36,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:36,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:36,061 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:36,061 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:36,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:36,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:36,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,129 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:36,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:36,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:36,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:36,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:36,149 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:36,150 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:36,150 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:36,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:50:36,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:36,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:36,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,204 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:36,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:36,224 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 23:50:36,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:36,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:36,235 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-28 23:50:36,236 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:36,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:50:36,268 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:36,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:36,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,315 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:36,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:36,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:36,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:36,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:36,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:36,346 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:36,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:50:36,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:36,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:36,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,395 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:36,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:36,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:36,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:36,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:36,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:36,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:36,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:36,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:50:36,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:36,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:36,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:50:36,476 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:36,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:36,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:36,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:36,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:36,495 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:36,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:36,512 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:50:36,531 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 23:50:36,531 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-10-28 23:50:36,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:36,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:36,537 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:36,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:50:36,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:50:36,574 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:50:36,574 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:50:36,575 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~1) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [] [2021-10-28 23:50:36,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:36,626 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 23:50:36,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:36,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:50:36,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:36,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:50:36,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:36,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:36,777 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:50:36,779 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 29 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:36,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 29 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 24 states have internal predecessors, (35), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 83 transitions. Complement of second has 9 states. [2021-10-28 23:50:36,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:50:36,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:36,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2021-10-28 23:50:36,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 23:50:36,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:36,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:50:36,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:36,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 23:50:36,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:36,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 83 transitions. [2021-10-28 23:50:36,906 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:36,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 26 states and 37 transitions. [2021-10-28 23:50:36,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-10-28 23:50:36,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 23:50:36,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 37 transitions. [2021-10-28 23:50:36,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:36,920 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 37 transitions. [2021-10-28 23:50:36,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 37 transitions. [2021-10-28 23:50:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-28 23:50:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 22 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:50:36,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 37 transitions. [2021-10-28 23:50:36,967 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 37 transitions. [2021-10-28 23:50:36,967 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 37 transitions. [2021-10-28 23:50:36,968 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:50:36,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 37 transitions. [2021-10-28 23:50:36,971 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:36,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:36,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:36,972 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-10-28 23:50:36,973 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:36,973 INFO L791 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 148#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 150#L40-3 assume !(main_~i~1 < main_~n~0); 138#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 143#merge_sortENTRY [2021-10-28 23:50:36,973 INFO L793 eck$LassoCheckResult]: Loop: 143#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 144#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 139#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 143#merge_sortENTRY [2021-10-28 23:50:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 84999888, now seen corresponding path program 1 times [2021-10-28 23:50:36,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:36,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974588741] [2021-10-28 23:50:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:36,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:36,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:37,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:37,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974588741] [2021-10-28 23:50:37,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974588741] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:37,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:37,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:50:37,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704382532] [2021-10-28 23:50:37,039 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:37,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,040 INFO L85 PathProgramCache]: Analyzing trace with hash 30000, now seen corresponding path program 1 times [2021-10-28 23:50:37,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:37,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327670342] [2021-10-28 23:50:37,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,069 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,089 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:37,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:50:37,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:50:37,372 INFO L87 Difference]: Start difference. First operand 26 states and 37 transitions. cyclomatic complexity: 15 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:37,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:37,396 INFO L93 Difference]: Finished difference Result 27 states and 35 transitions. [2021-10-28 23:50:37,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:50:37,397 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2021-10-28 23:50:37,402 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:37,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 27 states and 35 transitions. [2021-10-28 23:50:37,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 23:50:37,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 23:50:37,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-10-28 23:50:37,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:37,408 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-28 23:50:37,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-10-28 23:50:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-10-28 23:50:37,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:50:37,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-10-28 23:50:37,416 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-10-28 23:50:37,416 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-10-28 23:50:37,416 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:50:37,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2021-10-28 23:50:37,418 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:37,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:37,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:37,419 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:37,420 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:37,420 INFO L791 eck$LassoCheckResult]: Stem: 216#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 206#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 207#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 209#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 210#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 211#L40-3 assume !(main_~i~1 < main_~n~0); 198#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 202#merge_sortENTRY [2021-10-28 23:50:37,420 INFO L793 eck$LassoCheckResult]: Loop: 202#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 203#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 196#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 202#merge_sortENTRY [2021-10-28 23:50:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,421 INFO L85 PathProgramCache]: Analyzing trace with hash 80563154, now seen corresponding path program 1 times [2021-10-28 23:50:37,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:37,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327339535] [2021-10-28 23:50:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,462 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,480 INFO L85 PathProgramCache]: Analyzing trace with hash 30000, now seen corresponding path program 2 times [2021-10-28 23:50:37,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:37,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144838967] [2021-10-28 23:50:37,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,490 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,500 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,501 INFO L85 PathProgramCache]: Analyzing trace with hash -829797441, now seen corresponding path program 1 times [2021-10-28 23:50:37,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:37,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316341442] [2021-10-28 23:50:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:37,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:37,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:37,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316341442] [2021-10-28 23:50:37,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316341442] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:37,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016823339] [2021-10-28 23:50:37,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:37,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:37,604 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:37,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:50:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:37,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:50:37,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:37,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-10-28 23:50:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:37,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016823339] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:37,919 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:37,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-10-28 23:50:37,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864659555] [2021-10-28 23:50:38,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:38,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:50:38,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:50:38,165 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:38,234 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-10-28 23:50:38,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:50:38,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 45 transitions. [2021-10-28 23:50:38,236 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:38,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 40 transitions. [2021-10-28 23:50:38,239 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2021-10-28 23:50:38,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2021-10-28 23:50:38,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2021-10-28 23:50:38,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:38,241 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-10-28 23:50:38,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2021-10-28 23:50:38,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2021-10-28 23:50:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:50:38,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-28 23:50:38,245 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 23:50:38,245 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-28 23:50:38,246 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:50:38,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 36 transitions. [2021-10-28 23:50:38,247 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:38,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:38,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:38,248 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-28 23:50:38,248 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:38,248 INFO L791 eck$LassoCheckResult]: Stem: 323#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 312#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 313#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 315#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 316#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 317#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 318#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 328#L40-3 assume !(main_~i~1 < main_~n~0); 303#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 308#merge_sortENTRY [2021-10-28 23:50:38,248 INFO L793 eck$LassoCheckResult]: Loop: 308#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 309#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 302#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 308#merge_sortENTRY [2021-10-28 23:50:38,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:38,249 INFO L85 PathProgramCache]: Analyzing trace with hash 111829076, now seen corresponding path program 2 times [2021-10-28 23:50:38,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:38,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509637322] [2021-10-28 23:50:38,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:38,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:38,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,265 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,284 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:38,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:38,284 INFO L85 PathProgramCache]: Analyzing trace with hash 30000, now seen corresponding path program 3 times [2021-10-28 23:50:38,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:38,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879069928] [2021-10-28 23:50:38,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:38,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:38,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,292 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,301 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:38,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:38,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1394618371, now seen corresponding path program 2 times [2021-10-28 23:50:38,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:38,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567020860] [2021-10-28 23:50:38,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:38,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,342 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:38,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:39,352 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:50:39,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:50:39,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:50:39,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:50:39,352 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:50:39,353 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:39,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:50:39,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:50:39,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration4_Lasso [2021-10-28 23:50:39,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:50:39,353 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:50:39,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:39,921 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:50:39,921 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:50:39,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:39,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:39,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:39,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:50:39,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:39,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:39,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:39,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:39,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:39,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:39,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:39,968 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:40,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:40,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:40,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:40,014 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:40,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:40,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:40,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:40,043 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:40,043 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:40,052 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:40,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:40,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:50:40,072 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:50:40,098 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2021-10-28 23:50:40,099 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-10-28 23:50:40,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:40,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:40,101 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:40,108 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:50:40,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:50:40,130 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:50:40,130 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:50:40,130 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(merge_sort_#in~n) = 1*merge_sort_#in~n Supporting invariants [] [2021-10-28 23:50:40,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:40,177 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 23:50:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:40,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:50:40,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:40,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:50:40,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:40,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:40,327 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:50:40,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 12 Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:40,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 36 transitions. cyclomatic complexity: 12. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 58 transitions. Complement of second has 12 states. [2021-10-28 23:50:40,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:50:40,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:40,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-10-28 23:50:40,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 3 letters. [2021-10-28 23:50:40,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:40,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2021-10-28 23:50:40,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:40,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 9 letters. Loop has 6 letters. [2021-10-28 23:50:40,392 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:40,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 58 transitions. [2021-10-28 23:50:40,398 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:40,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 37 states and 49 transitions. [2021-10-28 23:50:40,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-28 23:50:40,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2021-10-28 23:50:40,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 49 transitions. [2021-10-28 23:50:40,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:40,406 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 49 transitions. [2021-10-28 23:50:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 49 transitions. [2021-10-28 23:50:40,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2021-10-28 23:50:40,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:50:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions. [2021-10-28 23:50:40,416 INFO L704 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-28 23:50:40,416 INFO L587 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2021-10-28 23:50:40,416 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:50:40,416 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 45 transitions. [2021-10-28 23:50:40,417 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 14 [2021-10-28 23:50:40,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:40,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:40,420 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:40,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:40,421 INFO L791 eck$LassoCheckResult]: Stem: 474#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 461#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 462#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 465#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 466#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 467#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 468#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 480#L40-3 assume !(main_~i~1 < main_~n~0); 451#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 455#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 456#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 449#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 457#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 458#L24 assume ~n < 2; 463#L8 assume true; 464#merge_sortEXIT >#86#return; 450#L27-1 [2021-10-28 23:50:40,421 INFO L793 eck$LassoCheckResult]: Loop: 450#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 473#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 478#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 448#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 473#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 478#L24 assume ~n < 2; 452#L8 assume true; 481#merge_sortEXIT >#86#return; 450#L27-1 [2021-10-28 23:50:40,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:40,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1739744228, now seen corresponding path program 1 times [2021-10-28 23:50:40,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:40,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828335521] [2021-10-28 23:50:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:40,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:40,470 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:40,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:40,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:40,521 INFO L85 PathProgramCache]: Analyzing trace with hash -313790022, now seen corresponding path program 1 times [2021-10-28 23:50:40,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:40,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271746967] [2021-10-28 23:50:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:40,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:40,542 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:40,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:40,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1064649429, now seen corresponding path program 1 times [2021-10-28 23:50:40,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:40,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234775099] [2021-10-28 23:50:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:40,568 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:40,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:50:40,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:40,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-10-28 23:50:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:40,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:40,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234775099] [2021-10-28 23:50:40,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234775099] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:40,846 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735017530] [2021-10-28 23:50:40,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:40,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:40,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:40,851 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:40,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-28 23:50:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:40,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:50:40,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:41,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:41,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735017530] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:41,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:41,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 14 [2021-10-28 23:50:41,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237865641] [2021-10-28 23:50:41,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:41,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:50:41,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:50:41,745 INFO L87 Difference]: Start difference. First operand 35 states and 45 transitions. cyclomatic complexity: 15 Second operand has 14 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 4 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-10-28 23:50:42,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:42,117 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2021-10-28 23:50:42,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-28 23:50:42,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 89 transitions. [2021-10-28 23:50:42,122 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 25 [2021-10-28 23:50:42,124 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 67 states and 85 transitions. [2021-10-28 23:50:42,124 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2021-10-28 23:50:42,125 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2021-10-28 23:50:42,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 85 transitions. [2021-10-28 23:50:42,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:42,126 INFO L681 BuchiCegarLoop]: Abstraction has 67 states and 85 transitions. [2021-10-28 23:50:42,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 85 transitions. [2021-10-28 23:50:42,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2021-10-28 23:50:42,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 52 states have (on average 1.25) internal successors, (65), 53 states have internal predecessors, (65), 7 states have call successors, (7), 6 states have call predecessors, (7), 5 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2021-10-28 23:50:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2021-10-28 23:50:42,133 INFO L704 BuchiCegarLoop]: Abstraction has 64 states and 80 transitions. [2021-10-28 23:50:42,134 INFO L587 BuchiCegarLoop]: Abstraction has 64 states and 80 transitions. [2021-10-28 23:50:42,134 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:50:42,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 64 states and 80 transitions. [2021-10-28 23:50:42,135 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 24 [2021-10-28 23:50:42,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:42,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:42,136 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:42,137 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:42,137 INFO L791 eck$LassoCheckResult]: Stem: 696#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 683#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 684#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 686#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 687#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 688#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 689#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 690#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 711#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 710#L40-3 assume !(main_~i~1 < main_~n~0); 673#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 707#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 681#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 672#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 680#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 682#L24 assume ~n < 2; 701#L8 assume true; 695#merge_sortEXIT >#86#return; 671#L27-1 [2021-10-28 23:50:42,137 INFO L793 eck$LassoCheckResult]: Loop: 671#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 678#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 679#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 674#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 678#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 679#L24 assume ~n < 2; 729#L8 assume true; 730#merge_sortEXIT >#86#return; 671#L27-1 [2021-10-28 23:50:42,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:42,138 INFO L85 PathProgramCache]: Analyzing trace with hash 691173850, now seen corresponding path program 2 times [2021-10-28 23:50:42,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:42,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535490465] [2021-10-28 23:50:42,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:42,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:42,152 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:42,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:42,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:42,169 INFO L85 PathProgramCache]: Analyzing trace with hash -313790022, now seen corresponding path program 2 times [2021-10-28 23:50:42,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:42,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769647513] [2021-10-28 23:50:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:42,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:42,177 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:42,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash -889748845, now seen corresponding path program 2 times [2021-10-28 23:50:42,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:42,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157432255] [2021-10-28 23:50:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:42,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:42,209 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:42,235 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:43,733 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:50:43,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:50:43,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:50:43,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:50:43,734 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:50:43,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:43,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:50:43,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:50:43,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration6_Lasso [2021-10-28 23:50:43,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:50:43,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:50:43,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,764 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,785 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,805 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,820 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,825 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:43,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:44,428 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:50:44,428 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:50:44,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,430 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:50:44,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 23:50:44,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,482 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:50:44,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,494 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,520 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:50:44,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,532 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 23:50:44,564 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,567 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:50:44,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,609 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:50:44,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:44,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:44,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,661 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:50:44,674 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,674 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,675 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,675 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,676 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,701 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,703 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:50:44,704 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,714 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,714 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,715 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,745 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:50:44,746 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,755 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,755 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,756 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,756 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,757 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,782 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,783 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:50:44,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,796 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,820 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,821 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:50:44,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,876 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:50:44,878 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,887 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-10-28 23:50:44,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,918 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:50:44,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,957 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:50:44,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:44,970 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:44,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:44,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:44,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:44,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:44,971 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:44,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:44,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:44,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:44,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:44,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:44,997 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:44,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:50:44,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,007 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,007 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,008 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 23:50:45,034 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,035 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:50:45,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,077 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,103 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:50:45,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,113 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,114 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 23:50:45,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,140 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:50:45,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,152 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,177 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:50:45,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,190 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 23:50:45,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,216 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:50:45,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,256 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:50:45,259 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,268 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,268 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,268 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,298 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:50:45,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,308 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,308 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,310 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,339 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:50:45,341 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,351 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,376 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:50:45,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,424 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:50:45,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:45,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:45,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 23:50:45,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,497 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:50:45,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,533 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,594 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,614 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:50:45,625 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,651 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:50:45,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,662 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,663 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,663 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,664 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,690 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:50:45,691 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,701 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,701 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 23:50:45,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,741 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,757 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:50:45,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 23:50:45,828 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,830 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:50:45,831 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,840 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,840 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,841 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,866 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:50:45,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,878 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:45,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,904 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:50:45,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-10-28 23:50:45,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,941 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:50:45,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:45,953 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:45,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 23:50:45,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:45,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:45,978 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:45,980 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:45,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:50:45,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:45,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:45,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:45,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:45,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:45,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:45,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:46,002 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:46,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-28 23:50:46,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,027 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:50:46,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:46,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:46,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:46,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:46,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:46,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:46,039 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:46,039 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:46,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:46,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:46,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,067 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:46,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:50:46,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:46,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:46,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:46,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:46,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:46,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:46,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:46,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:46,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:50:46,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,104 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:50:46,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:46,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:46,114 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2021-10-28 23:50:46,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:46,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:46,118 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2021-10-28 23:50:46,119 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:46,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:46,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:46,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,150 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:50:46,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:46,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:46,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:46,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:46,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:46,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:46,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:46,178 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:46,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 23:50:46,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,202 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:50:46,204 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:46,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:46,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:46,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:46,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:46,215 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:46,215 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:46,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:46,270 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Exception during sending of exit command (exit): Broken pipe [2021-10-28 23:50:46,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:46,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,273 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:50:46,275 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 [2021-10-28 23:50:46,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:46,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:46,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:46,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:46,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:46,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:46,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:50:46,358 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 23:50:46,358 INFO L444 ModelExtractionUtils]: 0 out of 25 variables were initially zero. Simplification set additionally 18 variables to zero. [2021-10-28 23:50:46,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:46,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:46,365 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:46,369 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:50:46,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:50:46,402 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:50:46,403 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:50:46,403 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(merge_sort_~a.offset, merge_sort_~m~0) = -1*merge_sort_~a.offset - 4*merge_sort_~m~0 + 5 Supporting invariants [-1*merge_sort_~a.offset - 4*merge_sort_~n + 12 >= 0] [2021-10-28 23:50:46,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:46,450 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 23:50:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:46,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:50:46,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:46,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:50:46,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:47,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:47,063 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.9 stem predicates 5 loop predicates [2021-10-28 23:50:47,064 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 64 states and 80 transitions. cyclomatic complexity: 23 Second operand has 14 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:50:47,605 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 64 states and 80 transitions. cyclomatic complexity: 23. Second operand has 14 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 337 states and 467 transitions. Complement of second has 44 states. [2021-10-28 23:50:47,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 10 stem states 4 non-accepting loop states 2 accepting loop states [2021-10-28 23:50:47,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:50:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 85 transitions. [2021-10-28 23:50:47,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 85 transitions. Stem has 18 letters. Loop has 8 letters. [2021-10-28 23:50:47,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:47,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 85 transitions. Stem has 26 letters. Loop has 8 letters. [2021-10-28 23:50:47,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:47,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 85 transitions. Stem has 18 letters. Loop has 16 letters. [2021-10-28 23:50:47,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:47,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 337 states and 467 transitions. [2021-10-28 23:50:47,620 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 88 [2021-10-28 23:50:47,628 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 337 states to 248 states and 347 transitions. [2021-10-28 23:50:47,628 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 175 [2021-10-28 23:50:47,629 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2021-10-28 23:50:47,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 347 transitions. [2021-10-28 23:50:47,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:47,631 INFO L681 BuchiCegarLoop]: Abstraction has 248 states and 347 transitions. [2021-10-28 23:50:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 347 transitions. [2021-10-28 23:50:47,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 218. [2021-10-28 23:50:47,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 177 states have (on average 1.310734463276836) internal successors, (232), 179 states have internal predecessors, (232), 26 states have call successors, (29), 17 states have call predecessors, (29), 15 states have return successors, (32), 21 states have call predecessors, (32), 23 states have call successors, (32) [2021-10-28 23:50:47,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 293 transitions. [2021-10-28 23:50:47,661 INFO L704 BuchiCegarLoop]: Abstraction has 218 states and 293 transitions. [2021-10-28 23:50:47,661 INFO L587 BuchiCegarLoop]: Abstraction has 218 states and 293 transitions. [2021-10-28 23:50:47,661 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:50:47,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 293 transitions. [2021-10-28 23:50:47,665 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 78 [2021-10-28 23:50:47,665 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:47,665 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:47,666 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:47,666 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-28 23:50:47,667 INFO L791 eck$LassoCheckResult]: Stem: 1304#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1278#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 1279#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 1282#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 1283#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1287#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 1346#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1345#L40-3 assume !(main_~i~1 < main_~n~0); 1250#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 1320#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 1354#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 1299#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 1300#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 1369#L24 assume ~n < 2; 1368#L8 assume true; 1366#merge_sortEXIT >#86#return; 1367#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 1373#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 1377#L24 assume ~n < 2; 1375#L8 assume true; 1372#merge_sortEXIT >#88#return; 1292#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 1293#L11-3 [2021-10-28 23:50:47,667 INFO L793 eck$LassoCheckResult]: Loop: 1293#L11-3 assume !!(merge_~k~0 < merge_~n); 1288#L12 assume merge_~j~0 == merge_~n;merge_#t~post3 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post3;call merge_#t~mem4 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post3, 4);merge_#t~ite15 := merge_#t~mem4; 1289#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 1318#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 1293#L11-3 [2021-10-28 23:50:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash 340719275, now seen corresponding path program 1 times [2021-10-28 23:50:47,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:47,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677065130] [2021-10-28 23:50:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:47,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:47,684 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:47,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:47,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1388838, now seen corresponding path program 1 times [2021-10-28 23:50:47,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:47,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119598734] [2021-10-28 23:50:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:47,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:47,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:47,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:47,804 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:47,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:47,805 INFO L85 PathProgramCache]: Analyzing trace with hash -782974256, now seen corresponding path program 1 times [2021-10-28 23:50:47,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:47,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739842253] [2021-10-28 23:50:47,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:47,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:50:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:47,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:50:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 23:50:47,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:47,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739842253] [2021-10-28 23:50:47,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739842253] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:47,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:47,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:50:47,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314524310] [2021-10-28 23:50:48,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:48,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:50:48,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:50:48,074 INFO L87 Difference]: Start difference. First operand 218 states and 293 transitions. cyclomatic complexity: 99 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:50:48,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:48,246 INFO L93 Difference]: Finished difference Result 350 states and 491 transitions. [2021-10-28 23:50:48,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:50:48,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 491 transitions. [2021-10-28 23:50:48,261 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 136 [2021-10-28 23:50:48,270 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 350 states and 491 transitions. [2021-10-28 23:50:48,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 258 [2021-10-28 23:50:48,271 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 258 [2021-10-28 23:50:48,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 350 states and 491 transitions. [2021-10-28 23:50:48,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:48,272 INFO L681 BuchiCegarLoop]: Abstraction has 350 states and 491 transitions. [2021-10-28 23:50:48,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states and 491 transitions. [2021-10-28 23:50:48,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 272. [2021-10-28 23:50:48,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 231 states have (on average 1.277056277056277) internal successors, (295), 233 states have internal predecessors, (295), 26 states have call successors, (29), 17 states have call predecessors, (29), 15 states have return successors, (32), 21 states have call predecessors, (32), 23 states have call successors, (32) [2021-10-28 23:50:48,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 356 transitions. [2021-10-28 23:50:48,303 INFO L704 BuchiCegarLoop]: Abstraction has 272 states and 356 transitions. [2021-10-28 23:50:48,303 INFO L587 BuchiCegarLoop]: Abstraction has 272 states and 356 transitions. [2021-10-28 23:50:48,303 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:50:48,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 272 states and 356 transitions. [2021-10-28 23:50:48,306 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 120 [2021-10-28 23:50:48,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:48,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:48,308 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:48,308 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:48,308 INFO L791 eck$LassoCheckResult]: Stem: 1901#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 1872#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 1873#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 1876#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 1877#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1878#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 1879#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1926#L40-3 assume !(main_~i~1 < main_~n~0); 1883#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 1920#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 1969#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 1967#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 1968#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 1975#L24 assume ~n < 2; 1974#L8 assume true; 1973#merge_sortEXIT >#86#return; 1915#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 1966#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 1914#L24 assume ~n < 2; 1916#L8 assume true; 2091#merge_sortEXIT >#88#return; 1882#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 1885#L11-3 [2021-10-28 23:50:48,308 INFO L793 eck$LassoCheckResult]: Loop: 1885#L11-3 assume !!(merge_~k~0 < merge_~n); 1903#L12 assume !(merge_~j~0 == merge_~n); 2106#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 1896#L14 assume !(merge_#t~mem7 < merge_#t~mem8);merge_#t~post11 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post11;call merge_#t~mem12 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post11, 4);merge_#t~ite13 := merge_#t~mem12; 1898#L14-2 merge_#t~ite14 := merge_#t~ite13; 1921#L13-2 merge_#t~ite15 := merge_#t~ite14; 1922#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 1917#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 1885#L11-3 [2021-10-28 23:50:48,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:48,309 INFO L85 PathProgramCache]: Analyzing trace with hash 340719275, now seen corresponding path program 2 times [2021-10-28 23:50:48,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:48,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383232023] [2021-10-28 23:50:48,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:48,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:48,323 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:48,340 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:48,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:48,341 INFO L85 PathProgramCache]: Analyzing trace with hash -120477233, now seen corresponding path program 1 times [2021-10-28 23:50:48,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:48,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537909630] [2021-10-28 23:50:48,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:48,342 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:48,350 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:48,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:48,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 389830265, now seen corresponding path program 1 times [2021-10-28 23:50:48,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:48,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810058009] [2021-10-28 23:50:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:48,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:48,382 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:48,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:50,797 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:50:50,797 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:50:50,797 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:50:50,797 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:50:50,797 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:50:50,797 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:50,797 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:50:50,797 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:50:50,798 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration8_Lasso [2021-10-28 23:50:50,798 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:50:50,798 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:50:50,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:50,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:50,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:50,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,406 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:51,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:50:52,431 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:50:52,431 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:50:52,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,450 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:52,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:52,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:52,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:52,468 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:52,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:52,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:50:52,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:52,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:52,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,526 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:50:52,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:52,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:52,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:52,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:52,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:52,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:52,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:52,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 23:50:52,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,563 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:50:52,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:52,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:50:52,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:52,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:52,574 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,574 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:50:52,574 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:50:52,575 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:52,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-10-28 23:50:52,599 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,600 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:50:52,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:52,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:52,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:52,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,611 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:52,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:52,644 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:52,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-10-28 23:50:52,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,675 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:50:52,676 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 [2021-10-28 23:50:52,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,685 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2021-10-28 23:50:52,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:52,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,700 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:50:52,700 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:52,736 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:52,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-28 23:50:52,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,775 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:50:52,777 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:52,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:52,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:50:52,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,788 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:50:52,788 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:50:52,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:50:52,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:52,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:52,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:52,861 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:52,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:50:52,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:50:52,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:50:52,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:50:52,872 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2021-10-28 23:50:52,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:50:52,988 INFO L401 nArgumentSynthesizer]: We have 48 Motzkin's Theorem applications. [2021-10-28 23:50:52,988 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2021-10-28 23:50:53,817 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:50:55,873 INFO L443 ModelExtractionUtils]: Simplification made 52 calls to the SMT solver. [2021-10-28 23:50:55,873 INFO L444 ModelExtractionUtils]: 91 out of 190 variables were initially zero. Simplification set additionally 96 variables to zero. [2021-10-28 23:50:55,873 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:55,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:55,876 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:55,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:50:55,877 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:50:55,892 INFO L438 nArgumentSynthesizer]: Removed 8 redundant supporting invariants from a total of 8. [2021-10-28 23:50:55,892 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:50:55,892 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(merge_sort_merge_~k~0, merge_sort_merge_~n) = -1*merge_sort_merge_~k~0 + 1*merge_sort_merge_~n Supporting invariants [] [2021-10-28 23:50:55,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:55,948 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2021-10-28 23:50:55,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:55,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:50:56,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:56,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:50:56,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:56,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:50:56,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:56,366 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 23:50:56,367 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 272 states and 356 transitions. cyclomatic complexity: 108 Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:50:56,467 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 272 states and 356 transitions. cyclomatic complexity: 108. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Result 686 states and 943 transitions. Complement of second has 14 states. [2021-10-28 23:50:56,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:50:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:50:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-28 23:50:56,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 22 letters. Loop has 8 letters. [2021-10-28 23:50:56,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:56,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 30 letters. Loop has 8 letters. [2021-10-28 23:50:56,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:56,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 22 letters. Loop has 16 letters. [2021-10-28 23:50:56,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:50:56,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 686 states and 943 transitions. [2021-10-28 23:50:56,497 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 124 [2021-10-28 23:50:56,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 686 states to 506 states and 697 transitions. [2021-10-28 23:50:56,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2021-10-28 23:50:56,515 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2021-10-28 23:50:56,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 506 states and 697 transitions. [2021-10-28 23:50:56,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:56,518 INFO L681 BuchiCegarLoop]: Abstraction has 506 states and 697 transitions. [2021-10-28 23:50:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states and 697 transitions. [2021-10-28 23:50:56,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 475. [2021-10-28 23:50:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 407 states have (on average 1.2972972972972974) internal successors, (528), 413 states have internal predecessors, (528), 41 states have call successors, (45), 23 states have call predecessors, (45), 27 states have return successors, (84), 38 states have call predecessors, (84), 38 states have call successors, (84) [2021-10-28 23:50:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 657 transitions. [2021-10-28 23:50:56,564 INFO L704 BuchiCegarLoop]: Abstraction has 475 states and 657 transitions. [2021-10-28 23:50:56,564 INFO L587 BuchiCegarLoop]: Abstraction has 475 states and 657 transitions. [2021-10-28 23:50:56,564 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:50:56,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 475 states and 657 transitions. [2021-10-28 23:50:56,570 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 118 [2021-10-28 23:50:56,570 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:56,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:56,572 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:56,572 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:50:56,573 INFO L791 eck$LassoCheckResult]: Stem: 3016#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 2986#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 2987#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 2991#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 2992#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2993#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 2994#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3073#L40-3 assume !(main_~i~1 < main_~n~0); 2962#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 3036#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 3121#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 3008#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 3009#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 3248#L24 assume ~n < 2; 3245#L8 assume true; 3242#merge_sortEXIT >#86#return; 3006#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 3024#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 3030#L24 assume ~n < 2; 3031#L8 assume true; 3005#merge_sortEXIT >#88#return; 2997#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 2998#L11-3 assume !(merge_~k~0 < merge_~n); 3017#L11-4 merge_~i~0 := 0; 3021#L17-3 [2021-10-28 23:50:56,573 INFO L793 eck$LassoCheckResult]: Loop: 3021#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 3020#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 3021#L17-3 [2021-10-28 23:50:56,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:56,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1013709224, now seen corresponding path program 1 times [2021-10-28 23:50:56,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:56,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324832373] [2021-10-28 23:50:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:56,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:56,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:56,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:50:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:50:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:56,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:50:56,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:56,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324832373] [2021-10-28 23:50:56,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324832373] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:56,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167553866] [2021-10-28 23:50:56,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:56,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:56,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:56,696 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:56,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-10-28 23:50:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:56,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:50:56,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:50:56,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167553866] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:56,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:50:56,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 10 [2021-10-28 23:50:56,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613966055] [2021-10-28 23:50:56,986 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash 2563, now seen corresponding path program 1 times [2021-10-28 23:50:56,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:56,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000571830] [2021-10-28 23:50:56,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:56,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:56,997 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:57,005 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:57,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:57,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:50:57,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:50:57,094 INFO L87 Difference]: Start difference. First operand 475 states and 657 transitions. cyclomatic complexity: 223 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:50:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:57,151 INFO L93 Difference]: Finished difference Result 680 states and 896 transitions. [2021-10-28 23:50:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:50:57,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 680 states and 896 transitions. [2021-10-28 23:50:57,164 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 118 [2021-10-28 23:50:57,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 680 states to 680 states and 896 transitions. [2021-10-28 23:50:57,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 322 [2021-10-28 23:50:57,182 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 322 [2021-10-28 23:50:57,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 680 states and 896 transitions. [2021-10-28 23:50:57,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:57,189 INFO L681 BuchiCegarLoop]: Abstraction has 680 states and 896 transitions. [2021-10-28 23:50:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states and 896 transitions. [2021-10-28 23:50:57,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 493. [2021-10-28 23:50:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 421 states have (on average 1.2707838479809976) internal successors, (535), 431 states have internal predecessors, (535), 41 states have call successors, (45), 23 states have call predecessors, (45), 31 states have return successors, (95), 38 states have call predecessors, (95), 38 states have call successors, (95) [2021-10-28 23:50:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 675 transitions. [2021-10-28 23:50:57,231 INFO L704 BuchiCegarLoop]: Abstraction has 493 states and 675 transitions. [2021-10-28 23:50:57,231 INFO L587 BuchiCegarLoop]: Abstraction has 493 states and 675 transitions. [2021-10-28 23:50:57,231 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:50:57,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 493 states and 675 transitions. [2021-10-28 23:50:57,236 INFO L131 ngComponentsAnalysis]: Automaton has 20 accepting balls. 118 [2021-10-28 23:50:57,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:57,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:57,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:57,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:57,239 INFO L791 eck$LassoCheckResult]: Stem: 4270#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 4239#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 4240#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 4246#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 4247#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4248#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 4249#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4310#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 4331#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4330#L40-3 assume !(main_~i~1 < main_~n~0); 4273#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 4328#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 4326#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 4265#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 4324#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 4329#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 4264#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 4267#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 4333#L24 assume ~n < 2; 4419#L8 assume true; 4406#merge_sortEXIT >#86#return; 4210#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 4452#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 4486#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 4213#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 4611#merge_sortENTRY [2021-10-28 23:50:57,239 INFO L793 eck$LassoCheckResult]: Loop: 4611#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 4612#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 4217#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 4611#merge_sortENTRY [2021-10-28 23:50:57,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:57,240 INFO L85 PathProgramCache]: Analyzing trace with hash 384755823, now seen corresponding path program 3 times [2021-10-28 23:50:57,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:57,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652451716] [2021-10-28 23:50:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:57,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:57,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:50:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:50:57,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:57,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652451716] [2021-10-28 23:50:57,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652451716] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:57,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360423205] [2021-10-28 23:50:57,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:50:57,382 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:57,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:57,385 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:57,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-10-28 23:50:57,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-28 23:50:57,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:50:57,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:50:57,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-28 23:50:57,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360423205] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:57,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:57,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 14 [2021-10-28 23:50:57,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687610069] [2021-10-28 23:50:57,695 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:57,695 INFO L85 PathProgramCache]: Analyzing trace with hash 30000, now seen corresponding path program 4 times [2021-10-28 23:50:57,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:57,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643279855] [2021-10-28 23:50:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:57,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:57,701 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:57,705 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:57,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:57,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:50:57,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:50:57,887 INFO L87 Difference]: Start difference. First operand 493 states and 675 transitions. cyclomatic complexity: 223 Second operand has 14 states, 12 states have (on average 2.0) internal successors, (24), 11 states have internal predecessors, (24), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:50:58,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:58,133 INFO L93 Difference]: Finished difference Result 549 states and 751 transitions. [2021-10-28 23:50:58,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-28 23:50:58,134 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 549 states and 751 transitions. [2021-10-28 23:50:58,142 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 138 [2021-10-28 23:50:58,150 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 549 states to 545 states and 747 transitions. [2021-10-28 23:50:58,151 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2021-10-28 23:50:58,151 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 291 [2021-10-28 23:50:58,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 545 states and 747 transitions. [2021-10-28 23:50:58,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:58,152 INFO L681 BuchiCegarLoop]: Abstraction has 545 states and 747 transitions. [2021-10-28 23:50:58,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states and 747 transitions. [2021-10-28 23:50:58,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 509. [2021-10-28 23:50:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 437 states have (on average 1.2700228832951945) internal successors, (555), 446 states have internal predecessors, (555), 41 states have call successors, (45), 23 states have call predecessors, (45), 31 states have return successors, (93), 39 states have call predecessors, (93), 38 states have call successors, (93) [2021-10-28 23:50:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 693 transitions. [2021-10-28 23:50:58,173 INFO L704 BuchiCegarLoop]: Abstraction has 509 states and 693 transitions. [2021-10-28 23:50:58,173 INFO L587 BuchiCegarLoop]: Abstraction has 509 states and 693 transitions. [2021-10-28 23:50:58,173 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:50:58,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 509 states and 693 transitions. [2021-10-28 23:50:58,177 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 132 [2021-10-28 23:50:58,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:58,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:58,179 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:58,179 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:58,179 INFO L791 eck$LassoCheckResult]: Stem: 5409#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 5382#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 5383#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 5387#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 5388#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 5389#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 5390#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 5445#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 5469#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 5443#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 5444#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 5468#L40-3 assume !(main_~i~1 < main_~n~0); 5365#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 5466#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 5467#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 5405#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 5406#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 5465#L24 assume ~n < 2; 5567#L8 assume true; 5518#merge_sortEXIT >#86#return; 5519#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 5584#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 5586#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 5530#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 5631#merge_sortENTRY [2021-10-28 23:50:58,179 INFO L793 eck$LassoCheckResult]: Loop: 5631#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 5636#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 5527#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 5631#merge_sortENTRY [2021-10-28 23:50:58,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:58,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1331732786, now seen corresponding path program 4 times [2021-10-28 23:50:58,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:58,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555642599] [2021-10-28 23:50:58,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:58,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:58,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-10-28 23:50:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:58,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:58,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555642599] [2021-10-28 23:50:58,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555642599] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:58,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204757891] [2021-10-28 23:50:58,329 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:50:58,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:58,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:58,330 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:58,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-10-28 23:50:58,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:50:58,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:50:58,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:50:58,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:58,618 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:58,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204757891] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:58,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:58,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 16 [2021-10-28 23:50:58,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901149405] [2021-10-28 23:50:58,619 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:58,620 INFO L85 PathProgramCache]: Analyzing trace with hash 30000, now seen corresponding path program 5 times [2021-10-28 23:50:58,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:58,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816263819] [2021-10-28 23:50:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:58,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:58,626 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:58,629 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:58,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:58,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-28 23:50:58,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-10-28 23:50:58,794 INFO L87 Difference]: Start difference. First operand 509 states and 693 transitions. cyclomatic complexity: 226 Second operand has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 14 states have internal predecessors, (25), 4 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:50:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:59,137 INFO L93 Difference]: Finished difference Result 544 states and 744 transitions. [2021-10-28 23:50:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-28 23:50:59,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 544 states and 744 transitions. [2021-10-28 23:50:59,173 INFO L131 ngComponentsAnalysis]: Automaton has 23 accepting balls. 150 [2021-10-28 23:50:59,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 544 states to 541 states and 741 transitions. [2021-10-28 23:50:59,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 302 [2021-10-28 23:50:59,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 302 [2021-10-28 23:50:59,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 541 states and 741 transitions. [2021-10-28 23:50:59,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:50:59,185 INFO L681 BuchiCegarLoop]: Abstraction has 541 states and 741 transitions. [2021-10-28 23:50:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states and 741 transitions. [2021-10-28 23:50:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 509. [2021-10-28 23:50:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 437 states have (on average 1.2700228832951945) internal successors, (555), 446 states have internal predecessors, (555), 41 states have call successors, (45), 23 states have call predecessors, (45), 31 states have return successors, (91), 39 states have call predecessors, (91), 38 states have call successors, (91) [2021-10-28 23:50:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 691 transitions. [2021-10-28 23:50:59,240 INFO L704 BuchiCegarLoop]: Abstraction has 509 states and 691 transitions. [2021-10-28 23:50:59,240 INFO L587 BuchiCegarLoop]: Abstraction has 509 states and 691 transitions. [2021-10-28 23:50:59,241 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:50:59,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 509 states and 691 transitions. [2021-10-28 23:50:59,245 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 132 [2021-10-28 23:50:59,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:59,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:59,246 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:59,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:50:59,247 INFO L791 eck$LassoCheckResult]: Stem: 6571#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6544#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 6545#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 6550#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 6551#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 6552#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 6553#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 6602#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 6636#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 6635#L40-3 assume !(main_~i~1 < main_~n~0); 6519#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 6634#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 6632#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 6629#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 6630#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 6633#L24 assume ~n < 2; 6631#L8 assume true; 6628#merge_sortEXIT >#86#return; 6526#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 6627#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 6960#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 6529#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 6696#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 6697#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 6746#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 6753#merge_sortENTRY [2021-10-28 23:50:59,247 INFO L793 eck$LassoCheckResult]: Loop: 6753#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 6755#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 6750#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 6753#merge_sortENTRY [2021-10-28 23:50:59,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:59,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1495319133, now seen corresponding path program 5 times [2021-10-28 23:50:59,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:59,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214476600] [2021-10-28 23:50:59,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:59,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:59,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:50:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:59,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:59,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214476600] [2021-10-28 23:50:59,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214476600] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:59,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839862413] [2021-10-28 23:50:59,462 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 23:50:59,462 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:50:59,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:59,464 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:50:59,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-10-28 23:50:59,624 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-28 23:50:59,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:50:59,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:50:59,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:50:59,820 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 23:50:59,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839862413] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:50:59,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:50:59,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 19 [2021-10-28 23:50:59,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025429481] [2021-10-28 23:50:59,822 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:50:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash 30000, now seen corresponding path program 6 times [2021-10-28 23:50:59,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:59,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69244982] [2021-10-28 23:50:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:59,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:59,829 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:59,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:59,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:59,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-28 23:50:59,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-28 23:50:59,981 INFO L87 Difference]: Start difference. First operand 509 states and 691 transitions. cyclomatic complexity: 224 Second operand has 19 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 15 states have internal predecessors, (28), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 23:51:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:00,524 INFO L93 Difference]: Finished difference Result 282 states and 358 transitions. [2021-10-28 23:51:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-28 23:51:00,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 282 states and 358 transitions. [2021-10-28 23:51:00,530 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 92 [2021-10-28 23:51:00,533 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 282 states to 275 states and 351 transitions. [2021-10-28 23:51:00,533 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 202 [2021-10-28 23:51:00,534 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 205 [2021-10-28 23:51:00,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 275 states and 351 transitions. [2021-10-28 23:51:00,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:00,534 INFO L681 BuchiCegarLoop]: Abstraction has 275 states and 351 transitions. [2021-10-28 23:51:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states and 351 transitions. [2021-10-28 23:51:00,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 230. [2021-10-28 23:51:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 195 states have (on average 1.241025641025641) internal successors, (242), 197 states have internal predecessors, (242), 20 states have call successors, (21), 16 states have call predecessors, (21), 15 states have return successors, (28), 16 states have call predecessors, (28), 17 states have call successors, (28) [2021-10-28 23:51:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 291 transitions. [2021-10-28 23:51:00,543 INFO L704 BuchiCegarLoop]: Abstraction has 230 states and 291 transitions. [2021-10-28 23:51:00,543 INFO L587 BuchiCegarLoop]: Abstraction has 230 states and 291 transitions. [2021-10-28 23:51:00,543 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 23:51:00,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states and 291 transitions. [2021-10-28 23:51:00,545 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 58 [2021-10-28 23:51:00,545 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:00,545 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:00,546 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:00,546 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:51:00,546 INFO L791 eck$LassoCheckResult]: Stem: 7483#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7465#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 7466#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 7468#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 7469#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 7470#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 7471#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 7509#L40-3 assume !(main_~i~1 < main_~n~0); 7485#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 7498#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 7516#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 7621#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 7622#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 7626#L24 assume ~n < 2; 7625#L8 assume true; 7620#merge_sortEXIT >#86#return; 7616#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 7617#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 7624#L24 assume ~n < 2; 7619#L8 assume true; 7615#merge_sortEXIT >#88#return; 7613#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 7612#L11-3 assume !!(merge_~k~0 < merge_~n); 7487#L12 assume !(merge_~j~0 == merge_~n); 7607#L13 assume merge_~i~0 == merge_~m;merge_#t~post5 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post5;call merge_#t~mem6 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post5, 4);merge_#t~ite14 := merge_#t~mem6; 7604#L13-2 merge_#t~ite15 := merge_#t~ite14; 7605#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 7599#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 7600#L11-3 assume !(merge_~k~0 < merge_~n); 7486#L11-4 merge_~i~0 := 0; 7489#L17-3 [2021-10-28 23:51:00,546 INFO L793 eck$LassoCheckResult]: Loop: 7489#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 7488#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 7489#L17-3 [2021-10-28 23:51:00,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:00,547 INFO L85 PathProgramCache]: Analyzing trace with hash 336388346, now seen corresponding path program 1 times [2021-10-28 23:51:00,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:00,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166144630] [2021-10-28 23:51:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:00,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:00,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:51:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:51:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:00,649 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-28 23:51:00,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:00,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166144630] [2021-10-28 23:51:00,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166144630] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:51:00,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:51:00,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:51:00,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390225170] [2021-10-28 23:51:00,651 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:51:00,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:00,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2563, now seen corresponding path program 2 times [2021-10-28 23:51:00,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:00,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610443025] [2021-10-28 23:51:00,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:00,652 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:00,679 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:00,682 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:00,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:00,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:51:00,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:51:00,743 INFO L87 Difference]: Start difference. First operand 230 states and 291 transitions. cyclomatic complexity: 77 Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:51:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:00,858 INFO L93 Difference]: Finished difference Result 285 states and 360 transitions. [2021-10-28 23:51:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:51:00,859 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 360 transitions. [2021-10-28 23:51:00,863 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 76 [2021-10-28 23:51:00,866 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 360 transitions. [2021-10-28 23:51:00,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 188 [2021-10-28 23:51:00,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2021-10-28 23:51:00,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 360 transitions. [2021-10-28 23:51:00,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:00,867 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 360 transitions. [2021-10-28 23:51:00,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 360 transitions. [2021-10-28 23:51:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 279. [2021-10-28 23:51:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 244 states have (on average 1.25) internal successors, (305), 246 states have internal predecessors, (305), 20 states have call successors, (21), 16 states have call predecessors, (21), 15 states have return successors, (28), 16 states have call predecessors, (28), 17 states have call successors, (28) [2021-10-28 23:51:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 354 transitions. [2021-10-28 23:51:00,877 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 354 transitions. [2021-10-28 23:51:00,878 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 354 transitions. [2021-10-28 23:51:00,878 INFO L425 BuchiCegarLoop]: ======== Iteration 14============ [2021-10-28 23:51:00,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 354 transitions. [2021-10-28 23:51:00,880 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 76 [2021-10-28 23:51:00,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:00,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:00,881 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:00,881 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:51:00,882 INFO L791 eck$LassoCheckResult]: Stem: 8024#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8001#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 8002#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 8006#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 8007#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 8008#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 8009#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 8048#L40-3 assume !(main_~i~1 < main_~n~0); 7999#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 8039#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 8054#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 8055#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 8207#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 8210#L24 assume ~n < 2; 8164#L8 assume true; 8165#merge_sortEXIT >#86#return; 8016#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 8031#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 8032#L24 assume ~n < 2; 8033#L8 assume true; 8015#merge_sortEXIT >#88#return; 8017#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 8242#L11-3 assume !!(merge_~k~0 < merge_~n); 8012#L12 assume !(merge_~j~0 == merge_~n); 7998#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 8000#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 8236#L14-2 merge_#t~ite14 := merge_#t~ite13; 8240#L13-2 merge_#t~ite15 := merge_#t~ite14; 8245#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 8244#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 8243#L11-3 assume !(merge_~k~0 < merge_~n); 8038#L11-4 merge_~i~0 := 0; 8030#L17-3 [2021-10-28 23:51:00,882 INFO L793 eck$LassoCheckResult]: Loop: 8030#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 8029#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 8030#L17-3 [2021-10-28 23:51:00,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:00,882 INFO L85 PathProgramCache]: Analyzing trace with hash -810277004, now seen corresponding path program 1 times [2021-10-28 23:51:00,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:00,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415712555] [2021-10-28 23:51:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:00,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:00,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:51:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:51:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:00,973 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-28 23:51:00,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:00,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415712555] [2021-10-28 23:51:00,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415712555] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:51:00,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768454144] [2021-10-28 23:51:00,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:00,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:51:00,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:00,976 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:51:00,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-10-28 23:51:01,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:01,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:51:01,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:01,280 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 23:51:01,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768454144] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:51:01,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:51:01,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2021-10-28 23:51:01,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719721602] [2021-10-28 23:51:01,282 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:51:01,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:01,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2563, now seen corresponding path program 3 times [2021-10-28 23:51:01,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:01,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913489312] [2021-10-28 23:51:01,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:01,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,290 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:01,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:01,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-28 23:51:01,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-10-28 23:51:01,366 INFO L87 Difference]: Start difference. First operand 279 states and 354 transitions. cyclomatic complexity: 91 Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:51:01,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:01,640 INFO L93 Difference]: Finished difference Result 475 states and 578 transitions. [2021-10-28 23:51:01,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-28 23:51:01,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 475 states and 578 transitions. [2021-10-28 23:51:01,644 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 76 [2021-10-28 23:51:01,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 475 states to 475 states and 578 transitions. [2021-10-28 23:51:01,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 266 [2021-10-28 23:51:01,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 266 [2021-10-28 23:51:01,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 475 states and 578 transitions. [2021-10-28 23:51:01,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:01,651 INFO L681 BuchiCegarLoop]: Abstraction has 475 states and 578 transitions. [2021-10-28 23:51:01,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states and 578 transitions. [2021-10-28 23:51:01,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 363. [2021-10-28 23:51:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 328 states have (on average 1.2073170731707317) internal successors, (396), 330 states have internal predecessors, (396), 20 states have call successors, (21), 16 states have call predecessors, (21), 15 states have return successors, (28), 16 states have call predecessors, (28), 17 states have call successors, (28) [2021-10-28 23:51:01,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 445 transitions. [2021-10-28 23:51:01,664 INFO L704 BuchiCegarLoop]: Abstraction has 363 states and 445 transitions. [2021-10-28 23:51:01,664 INFO L587 BuchiCegarLoop]: Abstraction has 363 states and 445 transitions. [2021-10-28 23:51:01,665 INFO L425 BuchiCegarLoop]: ======== Iteration 15============ [2021-10-28 23:51:01,665 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 363 states and 445 transitions. [2021-10-28 23:51:01,667 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 76 [2021-10-28 23:51:01,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:01,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:01,669 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:01,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:51:01,669 INFO L791 eck$LassoCheckResult]: Stem: 8919#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8895#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 8896#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 8900#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 8901#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 8902#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 8903#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 8904#L40-3 assume !(main_~i~1 < main_~n~0); 8926#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 8935#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 8964#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 9007#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 9008#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 9114#L24 assume ~n < 2; 9113#L8 assume true; 9006#merge_sortEXIT >#86#return; 8898#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 9110#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 9112#L24 assume ~n < 2; 8897#L8 assume true; 8899#merge_sortEXIT >#88#return; 8912#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 9109#L11-3 assume !!(merge_~k~0 < merge_~n); 9108#L12 assume !(merge_~j~0 == merge_~n); 9107#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 9105#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 9104#L14-2 merge_#t~ite14 := merge_#t~ite13; 9103#L13-2 merge_#t~ite15 := merge_#t~ite14; 9102#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 9101#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 9099#L11-3 assume !!(merge_~k~0 < merge_~n); 9098#L12 assume merge_~j~0 == merge_~n;merge_#t~post3 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post3;call merge_#t~mem4 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post3, 4);merge_#t~ite15 := merge_#t~mem4; 9094#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 8960#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 8961#L11-3 assume !(merge_~k~0 < merge_~n); 8956#L11-4 merge_~i~0 := 0; 8925#L17-3 [2021-10-28 23:51:01,669 INFO L793 eck$LassoCheckResult]: Loop: 8925#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 8927#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 8925#L17-3 [2021-10-28 23:51:01,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:01,670 INFO L85 PathProgramCache]: Analyzing trace with hash 64206937, now seen corresponding path program 1 times [2021-10-28 23:51:01,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:01,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422030694] [2021-10-28 23:51:01,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:01,670 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,688 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:01,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:01,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2563, now seen corresponding path program 4 times [2021-10-28 23:51:01,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:01,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417244808] [2021-10-28 23:51:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:01,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,714 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:01,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:01,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1573325915, now seen corresponding path program 1 times [2021-10-28 23:51:01,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:01,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823595586] [2021-10-28 23:51:01,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:01,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,734 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:01,756 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:04,504 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:51:04,504 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:51:04,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:51:04,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:51:04,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:51:04,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:04,504 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:51:04,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:51:04,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration15_Lasso [2021-10-28 23:51:04,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:51:04,505 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:51:04,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:04,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,063 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,064 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,068 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,077 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:05,711 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:51:05,711 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:51:05,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,717 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:51:05,725 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,725 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:05,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,748 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:51:05,749 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,757 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,757 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,757 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,758 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-28 23:51:05,778 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,779 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 23:51:05,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,787 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,787 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,788 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:05,807 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,809 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 23:51:05,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:05,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,839 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 23:51:05,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:05,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,873 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 23:51:05,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,883 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,883 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 23:51:05,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,906 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 23:51:05,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:05,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,937 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 23:51:05,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,946 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:05,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 23:51:05,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:05,967 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:05,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 23:51:05,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:05,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:05,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:05,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:05,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:05,981 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:05,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:05,981 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:05,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:06,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:06,005 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:06,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:06,005 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:06,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 23:51:06,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:06,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:06,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:06,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:06,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:06,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:06,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:06,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:06,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:06,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:06,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:06,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:06,039 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:06,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 23:51:06,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:06,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:06,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:06,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:06,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:06,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:06,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:06,050 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:06,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2021-10-28 23:51:06,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:06,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:06,070 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:06,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:06,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 23:51:06,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:06,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:06,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:06,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:06,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:06,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:06,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:06,093 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:06,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 23:51:06,112 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:06,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:06,113 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:06,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 23:51:06,114 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:06,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:06,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:06,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:06,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:06,125 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:06,125 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:06,130 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:06,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:06,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:06,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:06,151 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:06,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 23:51:06,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:06,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:06,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:06,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:06,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:06,169 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:06,170 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:06,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:51:06,291 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2021-10-28 23:51:06,291 INFO L444 ModelExtractionUtils]: 10 out of 52 variables were initially zero. Simplification set additionally 38 variables to zero. [2021-10-28 23:51:06,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:06,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:06,298 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:06,300 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:51:06,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 23:51:06,333 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:51:06,333 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:51:06,334 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(merge_sort_merge_~a.offset, merge_sort_merge_~i~0, v_rep(select #length merge_sort_merge_~x~0.base)_2) = -1*merge_sort_merge_~a.offset - 4*merge_sort_merge_~i~0 + 1*v_rep(select #length merge_sort_merge_~x~0.base)_2 Supporting invariants [] [2021-10-28 23:51:06,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:06,413 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2021-10-28 23:51:06,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:06,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-28 23:51:06,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:06,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:51:06,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:06,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:51:06,893 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2021-10-28 23:51:06,893 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 363 states and 445 transitions. cyclomatic complexity: 98 Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:51:07,141 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 363 states and 445 transitions. cyclomatic complexity: 98. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Result 379 states and 467 transitions. Complement of second has 20 states. [2021-10-28 23:51:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 6 stem states 2 non-accepting loop states 2 accepting loop states [2021-10-28 23:51:07,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:51:07,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 56 transitions. [2021-10-28 23:51:07,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 36 letters. Loop has 2 letters. [2021-10-28 23:51:07,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:51:07,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 38 letters. Loop has 2 letters. [2021-10-28 23:51:07,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:51:07,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 36 letters. Loop has 4 letters. [2021-10-28 23:51:07,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:51:07,144 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 379 states and 467 transitions. [2021-10-28 23:51:07,149 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 74 [2021-10-28 23:51:07,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 379 states to 318 states and 393 transitions. [2021-10-28 23:51:07,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 199 [2021-10-28 23:51:07,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 204 [2021-10-28 23:51:07,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 318 states and 393 transitions. [2021-10-28 23:51:07,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:07,155 INFO L681 BuchiCegarLoop]: Abstraction has 318 states and 393 transitions. [2021-10-28 23:51:07,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states and 393 transitions. [2021-10-28 23:51:07,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 312. [2021-10-28 23:51:07,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.2120141342756183) internal successors, (343), 285 states have internal predecessors, (343), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (25), 14 states have call predecessors, (25), 15 states have call successors, (25) [2021-10-28 23:51:07,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 385 transitions. [2021-10-28 23:51:07,164 INFO L704 BuchiCegarLoop]: Abstraction has 312 states and 385 transitions. [2021-10-28 23:51:07,164 INFO L587 BuchiCegarLoop]: Abstraction has 312 states and 385 transitions. [2021-10-28 23:51:07,164 INFO L425 BuchiCegarLoop]: ======== Iteration 16============ [2021-10-28 23:51:07,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 385 transitions. [2021-10-28 23:51:07,167 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 74 [2021-10-28 23:51:07,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:07,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:07,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:07,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:51:07,168 INFO L791 eck$LassoCheckResult]: Stem: 9880#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9858#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 9859#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 9861#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 9862#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 9863#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 9864#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 9865#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 9907#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 9908#L40-3 assume !(main_~i~1 < main_~n~0); 9838#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 9894#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 9982#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 9979#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 9980#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 9983#L24 assume ~n < 2; 9981#L8 assume true; 9978#merge_sortEXIT >#86#return; 9842#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 9959#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 9950#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 9951#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 9998#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 10000#L24 assume ~n < 2; 9996#L8 assume true; 9997#merge_sortEXIT >#86#return; 9851#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 9850#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 9852#L24 assume ~n < 2; 9889#L8 assume true; 9871#merge_sortEXIT >#88#return; 9872#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 10123#L11-3 assume !!(merge_~k~0 < merge_~n); 9868#L12 assume !(merge_~j~0 == merge_~n); 9848#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 9849#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 10118#L14-2 merge_#t~ite14 := merge_#t~ite13; 10115#L13-2 merge_#t~ite15 := merge_#t~ite14; 10114#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 9892#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 9893#L11-3 assume !!(merge_~k~0 < merge_~n); 10125#L12 assume merge_~j~0 == merge_~n;merge_#t~post3 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post3;call merge_#t~mem4 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post3, 4);merge_#t~ite15 := merge_#t~mem4; 9899#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 9900#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 10038#L11-3 assume !(merge_~k~0 < merge_~n); 10039#L11-4 merge_~i~0 := 0; 10082#L17-3 [2021-10-28 23:51:07,168 INFO L793 eck$LassoCheckResult]: Loop: 10082#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 10083#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 10082#L17-3 [2021-10-28 23:51:07,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:07,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1884766896, now seen corresponding path program 2 times [2021-10-28 23:51:07,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:07,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531623612] [2021-10-28 23:51:07,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:07,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:07,189 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:07,216 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:07,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:07,217 INFO L85 PathProgramCache]: Analyzing trace with hash 2563, now seen corresponding path program 5 times [2021-10-28 23:51:07,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:07,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639465479] [2021-10-28 23:51:07,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:07,218 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:07,222 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:07,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:07,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1215213458, now seen corresponding path program 2 times [2021-10-28 23:51:07,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:07,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35700704] [2021-10-28 23:51:07,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:07,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:07,307 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:07,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:07,342 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:11,855 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:51:11,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:51:11,855 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:51:11,855 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:51:11,855 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:51:11,855 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:11,855 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:51:11,855 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:51:11,855 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration16_Lasso [2021-10-28 23:51:11,855 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:51:11,855 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:51:11,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:11,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:12,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:13,056 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:51:13,056 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:51:13,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,057 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 23:51:13,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,067 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,088 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 23:51:13,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,096 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,097 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,097 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,118 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 23:51:13,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,126 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,127 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,127 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,147 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,148 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 23:51:13,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,156 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,157 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,158 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,179 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 23:51:13,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,189 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,214 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 23:51:13,215 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,248 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 23:51:13,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-10-28 23:51:13,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,281 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 23:51:13,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,290 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,291 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-10-28 23:51:13,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,312 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 23:51:13,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,321 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,321 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,321 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,322 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,345 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-10-28 23:51:13,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,346 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 23:51:13,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,380 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-28 23:51:13,381 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-10-28 23:51:13,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,416 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 23:51:13,417 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,427 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,427 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2021-10-28 23:51:13,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,450 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2021-10-28 23:51:13,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,463 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,482 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,482 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-10-28 23:51:13,483 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,495 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2021-10-28 23:51:13,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,522 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-10-28 23:51:13,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,533 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,533 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,538 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,558 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-10-28 23:51:13,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,567 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,568 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,568 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2021-10-28 23:51:13,590 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,591 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-10-28 23:51:13,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,599 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,599 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:51:13,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,599 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:51:13,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:51:13,600 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:51:13,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,620 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-10-28 23:51:13,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:51:13,644 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:51:13,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:51:13,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:51:13,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:51:13,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:51:13,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:51:13,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:51:13,763 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2021-10-28 23:51:13,763 INFO L444 ModelExtractionUtils]: 14 out of 64 variables were initially zero. Simplification set additionally 47 variables to zero. [2021-10-28 23:51:13,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:13,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:13,768 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:51:13,770 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:51:13,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-10-28 23:51:13,800 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-10-28 23:51:13,800 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:51:13,800 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(merge_sort_merge_~i~0, merge_sort_merge_~n) = -1*merge_sort_merge_~i~0 + 1*merge_sort_merge_~n Supporting invariants [] [2021-10-28 23:51:13,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:13,882 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2021-10-28 23:51:13,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:13,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:51:13,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:51:14,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:51:14,241 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-10-28 23:51:14,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 312 states and 385 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:51:14,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 312 states and 385 transitions. cyclomatic complexity: 88. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Result 326 states and 407 transitions. Complement of second has 9 states. [2021-10-28 23:51:14,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:51:14,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 23:51:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2021-10-28 23:51:14,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 46 letters. Loop has 2 letters. [2021-10-28 23:51:14,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:51:14,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 48 letters. Loop has 2 letters. [2021-10-28 23:51:14,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:51:14,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 46 letters. Loop has 4 letters. [2021-10-28 23:51:14,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:51:14,309 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 326 states and 407 transitions. [2021-10-28 23:51:14,312 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 70 [2021-10-28 23:51:14,315 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 326 states to 314 states and 389 transitions. [2021-10-28 23:51:14,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 193 [2021-10-28 23:51:14,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2021-10-28 23:51:14,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 314 states and 389 transitions. [2021-10-28 23:51:14,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:14,317 INFO L681 BuchiCegarLoop]: Abstraction has 314 states and 389 transitions. [2021-10-28 23:51:14,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states and 389 transitions. [2021-10-28 23:51:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2021-10-28 23:51:14,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 285 states have (on average 1.2175438596491228) internal successors, (347), 287 states have internal predecessors, (347), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (25), 14 states have call predecessors, (25), 15 states have call successors, (25) [2021-10-28 23:51:14,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 389 transitions. [2021-10-28 23:51:14,325 INFO L704 BuchiCegarLoop]: Abstraction has 314 states and 389 transitions. [2021-10-28 23:51:14,325 INFO L587 BuchiCegarLoop]: Abstraction has 314 states and 389 transitions. [2021-10-28 23:51:14,325 INFO L425 BuchiCegarLoop]: ======== Iteration 17============ [2021-10-28 23:51:14,325 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 314 states and 389 transitions. [2021-10-28 23:51:14,327 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 70 [2021-10-28 23:51:14,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:14,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:14,333 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:14,333 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:14,333 INFO L791 eck$LassoCheckResult]: Stem: 10744#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10723#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 10724#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 10727#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 10728#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 10771#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 10772#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 10729#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 10730#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 10731#L40-3 assume !(main_~i~1 < main_~n~0); 10761#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 10762#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 10836#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 10824#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 10828#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 10830#L24 assume ~n < 2; 10829#L8 assume true; 10823#merge_sortEXIT >#86#return; 10708#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 10818#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 10781#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 10782#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 10874#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 10876#L24 assume ~n < 2; 10872#L8 assume true; 10873#merge_sortEXIT >#86#return; 10714#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 10713#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 10715#L24 assume ~n < 2; 10756#L8 assume true; 10737#merge_sortEXIT >#88#return; 10738#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 10745#L11-3 assume !!(merge_~k~0 < merge_~n); 10746#L12 assume !(merge_~j~0 == merge_~n); 11002#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 11000#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 10998#L14-2 merge_#t~ite14 := merge_#t~ite13; 10999#L13-2 merge_#t~ite15 := merge_#t~ite14; 11008#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 11006#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 11004#L11-3 assume !!(merge_~k~0 < merge_~n); 11005#L12 assume merge_~j~0 == merge_~n;merge_#t~post3 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post3;call merge_#t~mem4 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post3, 4);merge_#t~ite15 := merge_#t~mem4; 10766#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 10938#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 10939#L11-3 assume !(merge_~k~0 < merge_~n); 10780#L11-4 merge_~i~0 := 0; 10752#L17-3 assume !(merge_~i~0 < merge_~n); 10753#L17-4 call ULTIMATE.dealloc(merge_~x~0.base, merge_~x~0.offset); 10863#L8 assume true; 10817#merge_sortEXIT >#88#return; 10816#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 10815#L11-3 assume !!(merge_~k~0 < merge_~n); 10814#L12 assume !(merge_~j~0 == merge_~n); 10813#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 10810#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 10807#L14-2 merge_#t~ite14 := merge_#t~ite13; 10805#L13-2 merge_#t~ite15 := merge_#t~ite14; 10803#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 10801#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 10799#L11-3 assume !!(merge_~k~0 < merge_~n); 10798#L12 [2021-10-28 23:51:14,334 INFO L793 eck$LassoCheckResult]: Loop: 10798#L12 assume !(merge_~j~0 == merge_~n); 10812#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 10808#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 10809#L14-2 merge_#t~ite14 := merge_#t~ite13; 10868#L13-2 merge_#t~ite15 := merge_#t~ite14; 10791#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 10792#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 10797#L11-3 assume !!(merge_~k~0 < merge_~n); 10798#L12 [2021-10-28 23:51:14,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:14,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1719261906, now seen corresponding path program 1 times [2021-10-28 23:51:14,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:14,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618295189] [2021-10-28 23:51:14,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:14,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:51:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:51:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:51:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-10-28 23:51:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-28 23:51:14,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:14,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618295189] [2021-10-28 23:51:14,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618295189] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:51:14,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653598768] [2021-10-28 23:51:14,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:14,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:51:14,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:14,448 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:51:14,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2021-10-28 23:51:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:14,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-28 23:51:14,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:15,095 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 27 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-28 23:51:15,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653598768] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:51:15,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:51:15,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 14] total 18 [2021-10-28 23:51:15,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189681669] [2021-10-28 23:51:15,097 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:51:15,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:15,097 INFO L85 PathProgramCache]: Analyzing trace with hash 233986997, now seen corresponding path program 1 times [2021-10-28 23:51:15,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:15,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056967950] [2021-10-28 23:51:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:15,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:15,103 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:15,108 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:15,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:15,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:15,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-28 23:51:15,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2021-10-28 23:51:15,370 INFO L87 Difference]: Start difference. First operand 314 states and 389 transitions. cyclomatic complexity: 90 Second operand has 18 states, 17 states have (on average 3.823529411764706) internal successors, (65), 15 states have internal predecessors, (65), 5 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:51:15,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:15,990 INFO L93 Difference]: Finished difference Result 426 states and 527 transitions. [2021-10-28 23:51:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-28 23:51:15,991 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 426 states and 527 transitions. [2021-10-28 23:51:15,998 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 124 [2021-10-28 23:51:16,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 426 states to 426 states and 527 transitions. [2021-10-28 23:51:16,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2021-10-28 23:51:16,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2021-10-28 23:51:16,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 426 states and 527 transitions. [2021-10-28 23:51:16,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:16,003 INFO L681 BuchiCegarLoop]: Abstraction has 426 states and 527 transitions. [2021-10-28 23:51:16,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states and 527 transitions. [2021-10-28 23:51:16,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 316. [2021-10-28 23:51:16,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 287 states have (on average 1.2055749128919862) internal successors, (346), 289 states have internal predecessors, (346), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (25), 14 states have call predecessors, (25), 15 states have call successors, (25) [2021-10-28 23:51:16,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 388 transitions. [2021-10-28 23:51:16,015 INFO L704 BuchiCegarLoop]: Abstraction has 316 states and 388 transitions. [2021-10-28 23:51:16,015 INFO L587 BuchiCegarLoop]: Abstraction has 316 states and 388 transitions. [2021-10-28 23:51:16,015 INFO L425 BuchiCegarLoop]: ======== Iteration 18============ [2021-10-28 23:51:16,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 316 states and 388 transitions. [2021-10-28 23:51:16,018 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 70 [2021-10-28 23:51:16,019 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:16,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:16,021 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:16,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:16,021 INFO L791 eck$LassoCheckResult]: Stem: 11754#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11735#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 11736#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 11738#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 11739#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 11783#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 11784#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 11740#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 11741#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 11742#L40-3 assume !(main_~i~1 < main_~n~0); 11715#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 11777#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 11843#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 11724#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 11723#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 11725#L24 assume ~n < 2; 11844#L8 assume true; 11838#merge_sortEXIT >#86#return; 11719#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 11804#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 11798#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 11799#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 11842#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 11850#L24 assume ~n < 2; 11840#L8 assume true; 11841#merge_sortEXIT >#86#return; 11750#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 11763#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 11769#L24 assume ~n < 2; 11770#L8 assume true; 11749#merge_sortEXIT >#88#return; 11751#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 11998#L11-3 assume !!(merge_~k~0 < merge_~n); 11997#L12 assume !(merge_~j~0 == merge_~n); 11996#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 11994#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 11995#L14-2 merge_#t~ite14 := merge_#t~ite13; 11990#L13-2 merge_#t~ite15 := merge_#t~ite14; 11991#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 11774#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 11757#L11-3 assume !!(merge_~k~0 < merge_~n); 11758#L12 assume merge_~j~0 == merge_~n;merge_#t~post3 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post3;call merge_#t~mem4 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post3, 4);merge_#t~ite15 := merge_#t~mem4; 11999#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 12008#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 12007#L11-3 assume !(merge_~k~0 < merge_~n); 11855#L11-4 merge_~i~0 := 0; 11764#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 11761#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 11762#L17-3 assume !(merge_~i~0 < merge_~n); 11721#L17-4 call ULTIMATE.dealloc(merge_~x~0.base, merge_~x~0.offset); 11722#L8 assume true; 11737#merge_sortEXIT >#88#return; 11747#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 11748#L11-3 assume !!(merge_~k~0 < merge_~n); 12017#L12 assume !(merge_~j~0 == merge_~n); 12016#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 12014#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 12015#L14-2 merge_#t~ite14 := merge_#t~ite13; 12025#L13-2 merge_#t~ite15 := merge_#t~ite14; 12010#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 12009#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 11755#L11-3 assume !!(merge_~k~0 < merge_~n); 11756#L12 [2021-10-28 23:51:16,021 INFO L793 eck$LassoCheckResult]: Loop: 11756#L12 assume !(merge_~j~0 == merge_~n); 11731#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 11732#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 11714#L14-2 merge_#t~ite14 := merge_#t~ite13; 11716#L13-2 merge_#t~ite15 := merge_#t~ite14; 11778#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 11772#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 11773#L11-3 assume !!(merge_~k~0 < merge_~n); 11756#L12 [2021-10-28 23:51:16,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:16,022 INFO L85 PathProgramCache]: Analyzing trace with hash 2004988308, now seen corresponding path program 1 times [2021-10-28 23:51:16,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:16,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993822940] [2021-10-28 23:51:16,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:16,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-10-28 23:51:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-10-28 23:51:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 23:51:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-10-28 23:51:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,136 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 28 proven. 6 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-10-28 23:51:16,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:51:16,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993822940] [2021-10-28 23:51:16,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993822940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:51:16,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93094046] [2021-10-28 23:51:16,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:16,137 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:51:16,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:51:16,141 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:51:16,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2021-10-28 23:51:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:51:16,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:51:16,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:51:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 25 proven. 24 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-28 23:51:16,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93094046] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:51:16,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:51:16,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14] total 20 [2021-10-28 23:51:16,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645423712] [2021-10-28 23:51:16,788 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:51:16,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:16,789 INFO L85 PathProgramCache]: Analyzing trace with hash 233986997, now seen corresponding path program 2 times [2021-10-28 23:51:16,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:16,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175277673] [2021-10-28 23:51:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:16,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:16,801 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:16,806 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:17,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:51:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-28 23:51:17,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2021-10-28 23:51:17,030 INFO L87 Difference]: Start difference. First operand 316 states and 388 transitions. cyclomatic complexity: 87 Second operand has 20 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 17 states have internal predecessors, (70), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2021-10-28 23:51:18,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:51:18,238 INFO L93 Difference]: Finished difference Result 631 states and 795 transitions. [2021-10-28 23:51:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-28 23:51:18,238 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 631 states and 795 transitions. [2021-10-28 23:51:18,244 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 208 [2021-10-28 23:51:18,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 631 states to 631 states and 795 transitions. [2021-10-28 23:51:18,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 420 [2021-10-28 23:51:18,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 420 [2021-10-28 23:51:18,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 631 states and 795 transitions. [2021-10-28 23:51:18,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:51:18,253 INFO L681 BuchiCegarLoop]: Abstraction has 631 states and 795 transitions. [2021-10-28 23:51:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states and 795 transitions. [2021-10-28 23:51:18,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 326. [2021-10-28 23:51:18,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 297 states have (on average 1.1986531986531987) internal successors, (356), 299 states have internal predecessors, (356), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (25), 14 states have call predecessors, (25), 15 states have call successors, (25) [2021-10-28 23:51:18,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 398 transitions. [2021-10-28 23:51:18,266 INFO L704 BuchiCegarLoop]: Abstraction has 326 states and 398 transitions. [2021-10-28 23:51:18,266 INFO L587 BuchiCegarLoop]: Abstraction has 326 states and 398 transitions. [2021-10-28 23:51:18,266 INFO L425 BuchiCegarLoop]: ======== Iteration 19============ [2021-10-28 23:51:18,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 326 states and 398 transitions. [2021-10-28 23:51:18,268 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 70 [2021-10-28 23:51:18,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:51:18,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:51:18,270 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:18,270 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:51:18,270 INFO L791 eck$LassoCheckResult]: Stem: 13016#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 12994#L-1 havoc main_#res;havoc main_#t~nondet18, main_#t~malloc19.base, main_#t~malloc19.offset, main_#t~nondet21, main_#t~post20, main_~i~1, main_~n~0, main_~a~0.base, main_~a~0.offset;main_~n~0 := main_#t~nondet18;havoc main_#t~nondet18; 12995#L35 assume !(main_~n~0 < 1);call main_#t~malloc19.base, main_#t~malloc19.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~a~0.base, main_~a~0.offset := main_#t~malloc19.base, main_#t~malloc19.offset;havoc main_#t~malloc19.base, main_#t~malloc19.offset;main_~i~1 := 0; 12999#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 13000#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 13040#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 13041#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 13001#L40-3 assume !!(main_~i~1 < main_~n~0);call write~int(main_#t~nondet21, main_~a~0.base, main_~a~0.offset + 4 * main_~i~1, 4);havoc main_#t~nondet21; 13002#L40-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 13003#L40-3 assume !(main_~i~1 < main_~n~0); 12974#L40-4 call merge_sort(main_~a~0.base, main_~a~0.offset, main_~n~0);< 13032#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 13100#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 13012#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 13013#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 13114#L24 assume ~n < 2; 13112#L8 assume true; 13110#merge_sortEXIT >#86#return; 12997#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 13069#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 13055#L24 assume !(~n < 2);~m~0 := (if ~n < 0 && 0 != ~n % 2 then 1 + ~n / 2 else ~n / 2); 13056#L27 call merge_sort(~a.base, ~a.offset, ~m~0);< 13099#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 13108#L24 assume ~n < 2; 13097#L8 assume true; 13098#merge_sortEXIT >#86#return; 12983#L27-1 call merge_sort(~a.base, ~a.offset + 4 * ~m~0, ~n - ~m~0);< 12982#merge_sortENTRY ~a.base, ~a.offset := #in~a.base, #in~a.offset;~n := #in~n; 12984#L24 assume ~n < 2; 13026#L8 assume true; 13146#merge_sortEXIT >#88#return; 13147#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 13143#L11-3 assume !!(merge_~k~0 < merge_~n); 13144#L12 assume !(merge_~j~0 == merge_~n); 13139#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 13140#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 13222#L14-2 merge_#t~ite14 := merge_#t~ite13; 13221#L13-2 merge_#t~ite15 := merge_#t~ite14; 13220#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 13219#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 13218#L11-3 assume !!(merge_~k~0 < merge_~n); 13211#L12 assume merge_~j~0 == merge_~n;merge_#t~post3 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post3;call merge_#t~mem4 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post3, 4);merge_#t~ite15 := merge_#t~mem4; 13212#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 13242#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 13241#L11-3 assume !(merge_~k~0 < merge_~n); 13124#L11-4 merge_~i~0 := 0; 13059#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 13060#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 13024#L17-3 assume !!(merge_~i~0 < merge_~n);call merge_#t~mem17 := read~int(merge_~x~0.base, merge_~x~0.offset + 4 * merge_~i~0, 4);call write~int(merge_#t~mem17, merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4);havoc merge_#t~mem17; 13025#L17-2 merge_#t~post16 := merge_~i~0;merge_~i~0 := 1 + merge_#t~post16;havoc merge_#t~post16; 13044#L17-3 assume !(merge_~i~0 < merge_~n); 13045#L17-4 call ULTIMATE.dealloc(merge_~x~0.base, merge_~x~0.offset); 12996#L8 assume true; 12998#merge_sortEXIT >#88#return; 13008#L28 merge_#in~a.base, merge_#in~a.offset, merge_#in~n, merge_#in~m := ~a.base, ~a.offset, ~n, ~m~0;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset, merge_#t~ite15, merge_#t~post3, merge_#t~mem4, merge_#t~ite14, merge_#t~post5, merge_#t~mem6, merge_#t~mem7, merge_#t~mem8, merge_#t~ite13, merge_#t~post9, merge_#t~mem10, merge_#t~post11, merge_#t~mem12, merge_#t~post2, merge_#t~mem17, merge_#t~post16, merge_~a.base, merge_~a.offset, merge_~n, merge_~m, merge_~i~0, merge_~j~0, merge_~k~0, merge_~x~0.base, merge_~x~0.offset;merge_~a.base, merge_~a.offset := merge_#in~a.base, merge_#in~a.offset;merge_~n := merge_#in~n;merge_~m := merge_#in~m;havoc merge_~i~0;havoc merge_~j~0;havoc merge_~k~0;call merge_#t~malloc1.base, merge_#t~malloc1.offset := #Ultimate.allocOnHeap(4 * merge_~n);merge_~x~0.base, merge_~x~0.offset := merge_#t~malloc1.base, merge_#t~malloc1.offset;havoc merge_#t~malloc1.base, merge_#t~malloc1.offset;merge_~i~0 := 0;merge_~j~0 := merge_~m;merge_~k~0 := 0; 13009#L11-3 assume !!(merge_~k~0 < merge_~n); 13287#L12 assume !(merge_~j~0 == merge_~n); 13286#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 13284#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 13283#L14-2 merge_#t~ite14 := merge_#t~ite13; 13282#L13-2 merge_#t~ite15 := merge_#t~ite14; 13036#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 13027#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 13028#L11-3 assume !!(merge_~k~0 < merge_~n); 13004#L12 [2021-10-28 23:51:18,270 INFO L793 eck$LassoCheckResult]: Loop: 13004#L12 assume !(merge_~j~0 == merge_~n); 12990#L13 assume !(merge_~i~0 == merge_~m);call merge_#t~mem7 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~j~0, 4);call merge_#t~mem8 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_~i~0, 4); 12991#L14 assume merge_#t~mem7 < merge_#t~mem8;merge_#t~post9 := merge_~j~0;merge_~j~0 := 1 + merge_#t~post9;call merge_#t~mem10 := read~int(merge_~a.base, merge_~a.offset + 4 * merge_#t~post9, 4);merge_#t~ite13 := merge_#t~mem10; 13014#L14-2 merge_#t~ite14 := merge_#t~ite13; 13295#L13-2 merge_#t~ite15 := merge_#t~ite14; 13294#L12-2 call write~int(merge_#t~ite15, merge_~x~0.base, merge_~x~0.offset + 4 * merge_~k~0, 4);havoc merge_#t~ite15;havoc merge_#t~post3;havoc merge_#t~mem4;havoc merge_#t~ite14;havoc merge_#t~post5;havoc merge_#t~mem6;havoc merge_#t~mem7;havoc merge_#t~mem8;havoc merge_#t~ite13;havoc merge_#t~post9;havoc merge_#t~mem10;havoc merge_#t~post11;havoc merge_#t~mem12; 13293#L11-2 merge_#t~post2 := merge_~k~0;merge_~k~0 := 1 + merge_#t~post2;havoc merge_#t~post2; 13289#L11-3 assume !!(merge_~k~0 < merge_~n); 13004#L12 [2021-10-28 23:51:18,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:18,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1710153686, now seen corresponding path program 2 times [2021-10-28 23:51:18,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:18,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827586438] [2021-10-28 23:51:18,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:18,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:18,334 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:18,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:18,435 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:18,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 233986997, now seen corresponding path program 3 times [2021-10-28 23:51:18,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:18,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44199058] [2021-10-28 23:51:18,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:18,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:18,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:18,448 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:18,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:51:18,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1618831734, now seen corresponding path program 3 times [2021-10-28 23:51:18,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:51:18,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345981752] [2021-10-28 23:51:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:51:18,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:51:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:18,522 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:51:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:51:18,641 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:51:37,454 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:51:37,455 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:51:37,455 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:51:37,455 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:51:37,455 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:51:37,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:51:37,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:51:37,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:51:37,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: mergeSort.i_Iteration19_Lasso [2021-10-28 23:51:37,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:51:37,455 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:51:37,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:37,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:51:38,397 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:953) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:862) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 23:51:38,406 INFO L168 Benchmark]: Toolchain (without parser) took 64793.35 ms. Allocated memory was 100.7 MB in the beginning and 318.8 MB in the end (delta: 218.1 MB). Free memory was 59.7 MB in the beginning and 142.0 MB in the end (delta: -82.2 MB). Peak memory consumption was 210.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:38,406 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:51:38,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.41 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 76.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:38,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.60 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 74.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:38,408 INFO L168 Benchmark]: Boogie Preprocessor took 53.19 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:38,408 INFO L168 Benchmark]: RCFGBuilder took 417.30 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 61.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:38,409 INFO L168 Benchmark]: BuchiAutomizer took 63800.30 ms. Allocated memory was 100.7 MB in the beginning and 318.8 MB in the end (delta: 218.1 MB). Free memory was 61.3 MB in the beginning and 142.0 MB in the end (delta: -80.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:51:38,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 76.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 437.41 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 76.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.60 ms. Allocated memory is still 100.7 MB. Free memory was 76.5 MB in the beginning and 74.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.19 ms. Allocated memory is still 100.7 MB. Free memory was 74.9 MB in the beginning and 73.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 417.30 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 61.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 63800.30 ms. Allocated memory was 100.7 MB in the beginning and 318.8 MB in the end (delta: 218.1 MB). Free memory was 61.3 MB in the beginning and 142.0 MB in the end (delta: -80.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 23:51:38,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2021-10-28 23:51:38,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:38,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-10-28 23:51:39,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-10-28 23:51:39,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-10-28 23:51:39,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:39,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:39,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-10-28 23:51:40,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:51:40,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_925c2bbd-be53-4537-99c4-f0b358bfd6b7/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...