./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN --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 a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:31:14,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:31:14,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:31:14,322 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:31:14,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:31:14,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:31:14,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:31:14,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:31:14,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:31:14,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:31:14,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:31:14,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:31:14,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:31:14,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:31:14,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:31:14,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:31:14,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:31:14,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:31:14,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:31:14,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:31:14,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:31:14,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:31:14,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:31:14,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:31:14,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:31:14,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:31:14,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:31:14,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:31:14,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:31:14,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:31:14,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:31:14,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:31:14,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:31:14,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:31:14,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:31:14,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:31:14,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:31:14,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:31:14,393 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:31:14,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:31:14,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:31:14,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 09:31:14,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:31:14,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:31:14,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:31:14,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:31:14,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:31:14,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:31:14,442 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:31:14,442 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 09:31:14,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 09:31:14,443 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 09:31:14,444 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 09:31:14,444 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 09:31:14,445 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 09:31:14,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:31:14,445 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:31:14,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:31:14,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:31:14,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 09:31:14,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 09:31:14,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 09:31:14,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:31:14,447 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 09:31:14,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:31:14,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 09:31:14,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:31:14,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:31:14,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:31:14,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:31:14,451 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 09:31:14,451 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_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 [2022-11-20 09:31:14,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:31:14,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:31:14,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:31:14,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:31:14,818 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:31:14,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2022-11-20 09:31:17,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:31:18,120 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:31:18,134 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2022-11-20 09:31:18,151 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/data/062aa2301/ad3c062fd3554d15a7d8339181af9ba2/FLAG88240519a [2022-11-20 09:31:18,170 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/data/062aa2301/ad3c062fd3554d15a7d8339181af9ba2 [2022-11-20 09:31:18,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:31:18,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:31:18,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:18,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:31:18,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:31:18,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3a5468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18, skipping insertion in model container [2022-11-20 09:31:18,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:31:18,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:31:18,617 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:18,630 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:31:18,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:31:18,724 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:31:18,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18 WrapperNode [2022-11-20 09:31:18,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:31:18,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:18,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:31:18,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:31:18,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,770 INFO L138 Inliner]: procedures = 115, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-11-20 09:31:18,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:31:18,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:31:18,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:31:18,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:31:18,781 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:31:18,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:31:18,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:31:18,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:31:18,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (1/1) ... [2022-11-20 09:31:18,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:18,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:18,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:18,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 09:31:18,905 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2022-11-20 09:31:18,905 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2022-11-20 09:31:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:31:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:31:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 09:31:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 09:31:18,906 INFO L130 BoogieDeclarations]: Found specification of procedure length [2022-11-20 09:31:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2022-11-20 09:31:18,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:31:18,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:31:19,002 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:31:19,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:31:19,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:31:19,205 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:31:19,206 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 09:31:19,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:19 BoogieIcfgContainer [2022-11-20 09:31:19,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:31:19,209 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 09:31:19,209 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 09:31:19,228 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 09:31:19,228 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:31:19,229 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:31:18" (1/3) ... [2022-11-20 09:31:19,230 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6908864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:31:19, skipping insertion in model container [2022-11-20 09:31:19,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:31:19,230 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:31:18" (2/3) ... [2022-11-20 09:31:19,230 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6908864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:31:19, skipping insertion in model container [2022-11-20 09:31:19,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:31:19,231 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:19" (3/3) ... [2022-11-20 09:31:19,232 INFO L332 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2022-11-20 09:31:19,331 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 09:31:19,331 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 09:31:19,331 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 09:31:19,331 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 09:31:19,331 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 09:31:19,331 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 09:31:19,332 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 09:31:19,332 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 09:31:19,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 09:31:19,363 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 09:31:19,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:19,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:19,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:31:19,370 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:31:19,370 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 09:31:19,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 09:31:19,377 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-11-20 09:31:19,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:19,377 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:19,378 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:31:19,378 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:31:19,387 INFO L748 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 14#L574true assume !(main_~n~0#1 < 1); 26#L577true call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 13#new_llENTRYtrue [2022-11-20 09:31:19,387 INFO L750 eck$LassoCheckResult]: Loop: 13#new_llENTRYtrue ~n := #in~n; 20#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 15#L552true call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 13#new_llENTRYtrue [2022-11-20 09:31:19,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:19,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2022-11-20 09:31:19,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:19,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177763410] [2022-11-20 09:31:19,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:19,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:19,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:19,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:19,605 INFO L85 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2022-11-20 09:31:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:19,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35022155] [2022-11-20 09:31:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:19,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:19,657 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:19,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:19,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:19,694 INFO L85 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2022-11-20 09:31:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:19,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876758277] [2022-11-20 09:31:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:19,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:19,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:19,771 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:20,802 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:31:20,803 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:31:20,803 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:31:20,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:31:20,804 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:31:20,804 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:20,804 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:31:20,804 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:31:20,804 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2022-11-20 09:31:20,804 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:31:20,805 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:31:20,828 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,839 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,841 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,844 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,849 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,852 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,861 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,863 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,866 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,869 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,874 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,876 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,893 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,896 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,898 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,900 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,903 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,905 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,995 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:20,997 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,000 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,004 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,010 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,016 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,021 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,023 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,026 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,028 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:31:21,290 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:31:21,295 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:31:21,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 09:31:21,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,341 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,354 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 09:31:21,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,375 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,404 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 [2022-11-20 09:31:21,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,417 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 09:31:21,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,427 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 09:31:21,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,441 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,441 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,451 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,459 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 09:31:21,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-11-20 09:31:21,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,491 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 09:31:21,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,504 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,504 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,505 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,505 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,507 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-11-20 09:31:21,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,515 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 09:31:21,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-11-20 09:31:21,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,543 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 09:31:21,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,556 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,556 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,598 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,656 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,657 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,657 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,657 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 09:31:21,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,683 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,688 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 09:31:21,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,717 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,717 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,718 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,735 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 09:31:21,746 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 [2022-11-20 09:31:21,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,783 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,804 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 09:31:21,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:31:21,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:31:21,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,829 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 09:31:21,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,867 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 09:31:21,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,883 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,889 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,894 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 09:31:21,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,909 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,937 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:21,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:21,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:21,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:21,948 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:21,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:21,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 09:31:21,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:21,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:21,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:21,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:21,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:21,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:21,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:21,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,009 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,025 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 09:31:22,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,047 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 09:31:22,049 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 [2022-11-20 09:31:22,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,060 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,060 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,075 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 09:31:22,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,094 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,103 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 09:31:22,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,120 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,120 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,120 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,120 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,121 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,122 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,127 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-20 09:31:22,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,142 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-11-20 09:31:22,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,148 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 09:31:22,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,198 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 09:31:22,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,217 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,221 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 09:31:22,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:31:22,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:31:22,261 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,265 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 09:31:22,269 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,317 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 09:31:22,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,337 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-20 09:31:22,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,341 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 09:31:22,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-11-20 09:31:22,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,378 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 09:31:22,381 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 [2022-11-20 09:31:22,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:31:22,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:31:22,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:31:22,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:31:22,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:31:22,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,399 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 09:31:22,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:31:22,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:31:22,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:31:22,416 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 09:31:22,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:31:22,424 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-11-20 09:31:22,424 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-11-20 09:31:22,441 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:31:22,470 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-11-20 09:31:22,470 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-11-20 09:31:22,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:31:22,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:22,537 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:31:22,586 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:31:22,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 09:31:22,617 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-11-20 09:31:22,617 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:31:22,617 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_ll_#in~n) = 1*new_ll_#in~n Supporting invariants [1*new_ll_#in~n >= 0] [2022-11-20 09:31:22,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:22,640 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-11-20 09:31:22,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:31:22,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:22,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-20 09:31:22,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:22,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:22,865 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-20 09:31:22,867 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-20 09:31:22,988 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4). Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 45 states and 54 transitions. Complement of second has 13 states. [2022-11-20 09:31:22,990 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 [2022-11-20 09:31:22,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-20 09:31:22,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-11-20 09:31:22,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-20 09:31:22,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:31:22,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-20 09:31:22,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:31:22,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-20 09:31:22,998 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:31:22,998 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2022-11-20 09:31:23,001 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:23,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2022-11-20 09:31:23,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-11-20 09:31:23,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-11-20 09:31:23,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2022-11-20 09:31:23,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:31:23,010 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-11-20 09:31:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2022-11-20 09:31:23,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-20 09:31:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 09:31:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-11-20 09:31:23,037 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-11-20 09:31:23,037 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-11-20 09:31:23,037 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 09:31:23,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2022-11-20 09:31:23,039 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:23,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:23,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:23,040 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:23,040 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 09:31:23,040 INFO L748 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 153#L574 assume !(main_~n~0#1 < 1); 142#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 161#new_llENTRY ~n := #in~n; 162#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 164#new_llFINAL assume true; 158#new_llEXIT >#57#return; 156#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 157#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 159#L566-3 [2022-11-20 09:31:23,040 INFO L750 eck$LassoCheckResult]: Loop: 159#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 160#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 159#L566-3 [2022-11-20 09:31:23,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,041 INFO L85 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2022-11-20 09:31:23,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778165843] [2022-11-20 09:31:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:23,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 09:31:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:23,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778165843] [2022-11-20 09:31:23,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778165843] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:23,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:23,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:31:23,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939194687] [2022-11-20 09:31:23,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:23,280 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 09:31:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2022-11-20 09:31:23,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056683488] [2022-11-20 09:31:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,291 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,298 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:23,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:23,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:23,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:23,383 INFO L87 Difference]: Start difference. First operand 27 states and 33 transitions. cyclomatic complexity: 9 Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 09:31:23,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:23,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:23,481 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-20 09:31:23,481 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2022-11-20 09:31:23,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:23,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2022-11-20 09:31:23,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-11-20 09:31:23,496 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-11-20 09:31:23,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2022-11-20 09:31:23,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:31:23,496 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-11-20 09:31:23,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2022-11-20 09:31:23,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-11-20 09:31:23,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-20 09:31:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-20 09:31:23,507 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-20 09:31:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:23,510 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-20 09:31:23,510 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 09:31:23,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2022-11-20 09:31:23,511 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:23,511 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:23,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:23,512 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:23,512 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:31:23,512 INFO L748 eck$LassoCheckResult]: Stem: 218#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 226#L574 assume !(main_~n~0#1 < 1); 216#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 233#new_llENTRY ~n := #in~n; 223#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 224#new_llFINAL assume true; 227#new_llEXIT >#57#return; 229#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 230#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 212#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 213#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 228#lengthENTRY [2022-11-20 09:31:23,513 INFO L750 eck$LassoCheckResult]: Loop: 228#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 221#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 222#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 228#lengthENTRY [2022-11-20 09:31:23,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,513 INFO L85 PathProgramCache]: Analyzing trace with hash -250149368, now seen corresponding path program 1 times [2022-11-20 09:31:23,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362336943] [2022-11-20 09:31:23,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 09:31:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:23,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:23,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362336943] [2022-11-20 09:31:23,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362336943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:23,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:23,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 09:31:23,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249208625] [2022-11-20 09:31:23,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:23,578 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 09:31:23,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,578 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2022-11-20 09:31:23,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296655492] [2022-11-20 09:31:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:23,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:23,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:31:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:31:23,718 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. cyclomatic complexity: 8 Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 09:31:23,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:23,801 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-11-20 09:31:23,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2022-11-20 09:31:23,802 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:23,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2022-11-20 09:31:23,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-11-20 09:31:23,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-11-20 09:31:23,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2022-11-20 09:31:23,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:31:23,803 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-20 09:31:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2022-11-20 09:31:23,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-20 09:31:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-20 09:31:23,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-11-20 09:31:23,806 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-20 09:31:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:31:23,807 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-11-20 09:31:23,808 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 09:31:23,808 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2022-11-20 09:31:23,808 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:23,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:23,809 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:23,809 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:23,809 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-20 09:31:23,810 INFO L748 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 299#L574 assume !(main_~n~0#1 < 1); 286#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 306#new_llENTRY ~n := #in~n; 298#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 287#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 307#new_llENTRY ~n := #in~n; 296#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 297#new_llFINAL assume true; 300#new_llEXIT >#53#return; 285#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 288#new_llFINAL assume true; 308#new_llEXIT >#57#return; 302#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 303#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 304#L566-3 [2022-11-20 09:31:23,810 INFO L750 eck$LassoCheckResult]: Loop: 304#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 305#L566-1 assume !!(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset;call append_#t~mem7#1.base, append_#t~mem7#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8);append_~x#1.base, append_~x#1.offset := append_#t~mem7#1.base, append_#t~mem7#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset; 304#L566-3 [2022-11-20 09:31:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2022-11-20 09:31:23,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342180902] [2022-11-20 09:31:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:23,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2022-11-20 09:31:23,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41105210] [2022-11-20 09:31:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,845 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:23,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:23,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:23,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2022-11-20 09:31:23,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:23,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645474127] [2022-11-20 09:31:23,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:23,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:24,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 09:31:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:31:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:24,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-20 09:31:24,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:24,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645474127] [2022-11-20 09:31:24,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645474127] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:31:24,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206733173] [2022-11-20 09:31:24,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:24,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:31:24,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:31:24,459 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:31:24,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-11-20 09:31:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:24,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-20 09:31:24,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:31:24,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-20 09:31:24,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 09:31:24,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-20 09:31:24,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 09:31:24,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 09:31:24,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:31:24,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:31:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:31:25,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206733173] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:31:25,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:31:25,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 21 [2022-11-20 09:31:25,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707429765] [2022-11-20 09:31:25,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:31:25,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:25,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-20 09:31:25,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-11-20 09:31:25,247 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. cyclomatic complexity: 7 Second operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 15 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 6 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-20 09:31:25,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:25,693 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-11-20 09:31:25,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2022-11-20 09:31:25,694 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:25,695 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2022-11-20 09:31:25,695 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2022-11-20 09:31:25,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-11-20 09:31:25,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2022-11-20 09:31:25,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:31:25,695 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-11-20 09:31:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2022-11-20 09:31:25,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-11-20 09:31:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 09:31:25,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-20 09:31:25,698 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-20 09:31:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-20 09:31:25,700 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-20 09:31:25,700 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 09:31:25,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2022-11-20 09:31:25,701 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:25,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:25,701 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:25,702 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:25,702 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:31:25,702 INFO L748 eck$LassoCheckResult]: Stem: 504#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 505#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 512#L574 assume !(main_~n~0#1 < 1); 500#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 521#new_llENTRY ~n := #in~n; 511#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 499#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 522#new_llENTRY ~n := #in~n; 509#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 510#new_llFINAL assume true; 517#new_llEXIT >#53#return; 518#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 528#new_llFINAL assume true; 527#new_llEXIT >#57#return; 515#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 516#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 502#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 503#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 514#lengthENTRY [2022-11-20 09:31:25,702 INFO L750 eck$LassoCheckResult]: Loop: 514#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 507#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 508#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 514#lengthENTRY [2022-11-20 09:31:25,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:25,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2022-11-20 09:31:25,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:25,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808031628] [2022-11-20 09:31:25,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:25,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-20 09:31:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 09:31:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:31:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:31:25,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:31:25,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808031628] [2022-11-20 09:31:25,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808031628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:31:25,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:31:25,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:31:25,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960768363] [2022-11-20 09:31:25,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:31:25,814 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-20 09:31:25,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:25,815 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2022-11-20 09:31:25,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:25,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460006962] [2022-11-20 09:31:25,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:25,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:25,819 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:25,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:31:25,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:31:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:31:25,941 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. cyclomatic complexity: 9 Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 5 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 09:31:26,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:31:26,013 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-11-20 09:31:26,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2022-11-20 09:31:26,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:26,015 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2022-11-20 09:31:26,015 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-11-20 09:31:26,015 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-11-20 09:31:26,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2022-11-20 09:31:26,015 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:31:26,015 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-11-20 09:31:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2022-11-20 09:31:26,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-11-20 09:31:26,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 09:31:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-11-20 09:31:26,019 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-20 09:31:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:31:26,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-11-20 09:31:26,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 09:31:26,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2022-11-20 09:31:26,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-20 09:31:26,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:31:26,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:31:26,021 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:31:26,022 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-20 09:31:26,022 INFO L748 eck$LassoCheckResult]: Stem: 598#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 599#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 606#L574 assume !(main_~n~0#1 < 1); 593#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 616#new_llENTRY ~n := #in~n; 605#L548 assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~head~0.base, ~head~0.offset := #t~malloc2.base, #t~malloc2.offset;havoc #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~head~0.base, ~head~0.offset, 4); 594#L552 call #t~ret3.base, #t~ret3.offset := new_ll(~n - 1);< 617#new_llENTRY ~n := #in~n; 603#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 604#new_llFINAL assume true; 611#new_llEXIT >#53#return; 612#L552-1 call write~$Pointer$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 622#new_llFINAL assume true; 619#new_llEXIT >#57#return; 609#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 610#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 620#L566-3 call append_#t~mem6#1.base, append_#t~mem6#1.offset := read~$Pointer$(append_~x#1.base, 4 + append_~x#1.offset, 8); 615#L566-1 assume !(append_#t~mem6#1.base != 0 || append_#t~mem6#1.offset != 0);havoc append_#t~mem6#1.base, append_#t~mem6#1.offset; 600#L566-4 call write~$Pointer$(append_~y#1.base, append_~y#1.offset, append_~x#1.base, 4 + append_~x#1.offset, 8);append_#res#1.base, append_#res#1.offset := append_~s~0#1.base, append_~s~0#1.offset; 596#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 597#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 607#lengthENTRY [2022-11-20 09:31:26,022 INFO L750 eck$LassoCheckResult]: Loop: 607#lengthENTRY ~xs.base, ~xs.offset := #in~xs.base, #in~xs.offset; 601#L557 assume !(~xs.base == 0 && ~xs.offset == 0);call #t~mem4.base, #t~mem4.offset := read~$Pointer$(~xs.base, 4 + ~xs.offset, 8); 602#L559 call #t~ret5 := length(#t~mem4.base, #t~mem4.offset);< 607#lengthENTRY [2022-11-20 09:31:26,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:26,022 INFO L85 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2022-11-20 09:31:26,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:26,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483731353] [2022-11-20 09:31:26,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:26,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:26,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:26,039 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:26,067 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:26,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:26,067 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 3 times [2022-11-20 09:31:26,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:26,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122227242] [2022-11-20 09:31:26,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:26,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:26,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:26,086 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2022-11-20 09:31:26,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:26,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856954867] [2022-11-20 09:31:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:26,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:26,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:31:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:28,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:31:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:31:28,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:31:28 BoogieIcfgContainer [2022-11-20 09:31:28,618 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 09:31:28,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:31:28,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:31:28,619 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:31:28,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:31:19" (3/4) ... [2022-11-20 09:31:28,622 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-20 09:31:28,656 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:31:28,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:31:28,657 INFO L158 Benchmark]: Toolchain (without parser) took 10482.44ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 127.1MB in the beginning and 67.9MB in the end (delta: 59.2MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,657 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:31:28,657 INFO L158 Benchmark]: CACSL2BoogieTranslator took 548.44ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 110.9MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.13ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 109.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,658 INFO L158 Benchmark]: Boogie Preprocessor took 57.23ms. Allocated memory is still 159.4MB. Free memory was 109.2MB in the beginning and 107.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,658 INFO L158 Benchmark]: RCFGBuilder took 378.88ms. Allocated memory is still 159.4MB. Free memory was 107.7MB in the beginning and 95.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,659 INFO L158 Benchmark]: BuchiAutomizer took 9409.03ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.5MB in the beginning and 70.0MB in the end (delta: 24.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,659 INFO L158 Benchmark]: Witness Printer took 37.64ms. Allocated memory is still 195.0MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:31:28,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 92.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 548.44ms. Allocated memory is still 159.4MB. Free memory was 127.1MB in the beginning and 110.9MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.13ms. Allocated memory is still 159.4MB. Free memory was 110.9MB in the beginning and 109.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.23ms. Allocated memory is still 159.4MB. Free memory was 109.2MB in the beginning and 107.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 378.88ms. Allocated memory is still 159.4MB. Free memory was 107.7MB in the beginning and 95.0MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 9409.03ms. Allocated memory was 159.4MB in the beginning and 195.0MB in the end (delta: 35.7MB). Free memory was 94.5MB in the beginning and 70.0MB in the end (delta: 24.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 37.64ms. Allocated memory is still 195.0MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (4 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. 4 modules have a trivial ranking function, the largest among these consists of 22 locations. The remainder module has 31 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.0s. Construction of modules took 0.4s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 350 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 448 IncrementalHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 70 mSDtfsCounter, 448 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU3 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital143 mio100 ax100 hnf100 lsp95 ukn30 mio100 lsp40 div100 bol100 ite100 ukn100 eq217 hnf86 smp100 dnf121 smp100 tf100 neg92 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 218ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 555]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) VAL [n=1] [L577] CALL, EXPR new_ll(n) VAL [\old(n)=1] [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n VAL [\old(n)=1, head={-1:0}, n=1] [L552] CALL, EXPR new_ll(n-1) VAL [\old(n)=0] [L548] COND TRUE n == 0 [L549] return ((void *)0); VAL [\old(n)=0, \result={0:0}, n=0] [L552] RET, EXPR new_ll(n-1) VAL [\old(n)=1, head={-1:0}, n=1, new_ll(n-1)={0:0}] [L552] head->next = new_ll(n-1) [L553] return head; VAL [\old(n)=1, \result={-1:0}, head={-1:0}, n=1] [L577] RET, EXPR new_ll(n) VAL [n=1, new_ll(n)={-1:0}] [L577] node_t* x = new_ll(n); [L578] CALL, EXPR append(x, x) [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; VAL [s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L566] EXPR x->next VAL [s={-1:0}, x={-1:0}, x={-1:0}, x->next={0:0}, y={-1:0}, y={-1:0}] [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; VAL [\result={-1:0}, s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L578] RET, EXPR append(x, x) [L578] node_t* y = append(x, x); [L579] CALL length(y) VAL [xs={-1:0}] Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 555]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L573] int n = __VERIFIER_nondet_int(); [L574] COND FALSE !(n < 1) VAL [n=1] [L577] CALL, EXPR new_ll(n) VAL [\old(n)=1] [L548] COND FALSE !(n == 0) [L550] node_t* head = malloc(sizeof(node_t)); [L551] head->val = n VAL [\old(n)=1, head={-1:0}, n=1] [L552] CALL, EXPR new_ll(n-1) VAL [\old(n)=0] [L548] COND TRUE n == 0 [L549] return ((void *)0); VAL [\old(n)=0, \result={0:0}, n=0] [L552] RET, EXPR new_ll(n-1) VAL [\old(n)=1, head={-1:0}, n=1, new_ll(n-1)={0:0}] [L552] head->next = new_ll(n-1) [L553] return head; VAL [\old(n)=1, \result={-1:0}, head={-1:0}, n=1] [L577] RET, EXPR new_ll(n) VAL [n=1, new_ll(n)={-1:0}] [L577] node_t* x = new_ll(n); [L578] CALL, EXPR append(x, x) [L563] COND FALSE !(x == ((void *)0)) [L565] node_t* s = x; VAL [s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L566] EXPR x->next VAL [s={-1:0}, x={-1:0}, x={-1:0}, x->next={0:0}, y={-1:0}, y={-1:0}] [L566] COND FALSE !(x->next != ((void *)0)) [L568] x->next = y [L569] return s; VAL [\result={-1:0}, s={-1:0}, x={-1:0}, x={-1:0}, y={-1:0}, y={-1:0}] [L578] RET, EXPR append(x, x) [L578] node_t* y = append(x, x); [L579] CALL length(y) VAL [xs={-1:0}] Loop: [L557] COND FALSE !(xs == ((void *)0)) [L559] EXPR xs->next [L559] CALL length(xs->next) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 09:31:28,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-11-20 09:31:28,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b853d39e-b902-409d-b4e0-1cad0e962df2/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)