./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 dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/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_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ --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-dbf71c6-m [2022-10-17 10:26:57,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:26:57,234 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:26:57,282 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:26:57,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:26:57,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:26:57,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:26:57,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:26:57,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:26:57,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:26:57,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:26:57,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:26:57,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:26:57,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:26:57,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:26:57,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:26:57,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:26:57,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:26:57,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:26:57,317 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:26:57,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:26:57,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:26:57,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:26:57,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:26:57,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:26:57,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:26:57,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:26:57,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:26:57,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:26:57,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:26:57,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:26:57,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:26:57,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:26:57,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:26:57,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:26:57,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:26:57,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:26:57,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:26:57,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:26:57,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:26:57,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:26:57,344 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-10-17 10:26:57,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:26:57,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:26:57,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:26:57,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:26:57,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:26:57,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:26:57,398 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:26:57,399 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:26:57,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:26:57,399 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:26:57,399 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:26:57,399 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:26:57,400 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:26:57,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:26:57,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:26:57,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:26:57,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:26:57,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:26:57,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:26:57,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:26:57,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:26:57,401 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:26:57,401 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:26:57,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:26:57,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:26:57,402 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:26:57,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:26:57,402 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:26:57,403 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:26:57,403 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_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a94e514ac338898e2e1e54a42b19ae4490ac5c412319209fc14736a6de9b7386 [2022-10-17 10:26:57,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:26:57,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:26:57,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:26:57,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:26:57,779 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:26:57,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2022-10-17 10:26:57,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/data/7fe3c0691/7b2b6a6a09124c2989c22931c412339e/FLAG6380f331e [2022-10-17 10:26:58,392 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:26:58,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/sv-benchmarks/c/termination-memory-linkedlists/ll_append-alloca-2.i [2022-10-17 10:26:58,404 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/data/7fe3c0691/7b2b6a6a09124c2989c22931c412339e/FLAG6380f331e [2022-10-17 10:26:58,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/data/7fe3c0691/7b2b6a6a09124c2989c22931c412339e [2022-10-17 10:26:58,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:26:58,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:26:58,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:58,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:26:58,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:26:58,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:58" (1/1) ... [2022-10-17 10:26:58,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b52d088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:58, skipping insertion in model container [2022-10-17 10:26:58,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:26:58" (1/1) ... [2022-10-17 10:26:58,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:26:58,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:26:59,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:59,201 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:26:59,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:26:59,301 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:26:59,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59 WrapperNode [2022-10-17 10:26:59,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:26:59,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:59,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:26:59,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:26:59,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,371 INFO L138 Inliner]: procedures = 115, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-10-17 10:26:59,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:26:59,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:26:59,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:26:59,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:26:59,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:26:59,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:26:59,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:26:59,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:26:59,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (1/1) ... [2022-10-17 10:26:59,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:26:59,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:26:59,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:26:59,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:26:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure new_ll [2022-10-17 10:26:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure new_ll [2022-10-17 10:26:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:26:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:26:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:26:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:26:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure length [2022-10-17 10:26:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure length [2022-10-17 10:26:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:26:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:26:59,601 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:26:59,603 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:26:59,816 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:26:59,821 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:26:59,822 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:26:59,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:59 BoogieIcfgContainer [2022-10-17 10:26:59,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:26:59,825 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:26:59,825 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:26:59,829 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:26:59,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:59,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:26:58" (1/3) ... [2022-10-17 10:26:59,831 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3520dc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:26:59, skipping insertion in model container [2022-10-17 10:26:59,831 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:59,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:26:59" (2/3) ... [2022-10-17 10:26:59,832 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3520dc5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:26:59, skipping insertion in model container [2022-10-17 10:26:59,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:26:59,832 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:59" (3/3) ... [2022-10-17 10:26:59,833 INFO L332 chiAutomizerObserver]: Analyzing ICFG ll_append-alloca-2.i [2022-10-17 10:26:59,889 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:26:59,890 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:26:59,890 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:26:59,890 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:26:59,890 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:26:59,890 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:26:59,891 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:26:59,891 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:26:59,896 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) [2022-10-17 10:26:59,926 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-10-17 10:26:59,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:59,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:59,933 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:26:59,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:59,934 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:26:59,935 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) [2022-10-17 10:26:59,939 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2022-10-17 10:26:59,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:26:59,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:26:59,940 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:26:59,941 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:26:59,948 INFO L748 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 14#L574true assume !(main_~n~0#1 < 1); 26#L577true call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 13#new_llENTRYtrue [2022-10-17 10:26:59,949 INFO L750 eck$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 [2022-10-17 10:26:59,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:26:59,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1418244, now seen corresponding path program 1 times [2022-10-17 10:26:59,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:26:59,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407097333] [2022-10-17 10:26:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:26:59,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:00,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:00,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:00,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:00,128 INFO L85 PathProgramCache]: Analyzing trace with hash 29967, now seen corresponding path program 1 times [2022-10-17 10:27:00,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:00,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33280166] [2022-10-17 10:27:00,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:00,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:00,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:00,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:00,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:00,200 INFO L85 PathProgramCache]: Analyzing trace with hash -698765780, now seen corresponding path program 1 times [2022-10-17 10:27:00,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:00,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472801827] [2022-10-17 10:27:00,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:00,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:00,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:00,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:00,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:01,275 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:27:01,275 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:27:01,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:27:01,277 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:27:01,277 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:27:01,278 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,278 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:27:01,278 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:27:01,278 INFO L133 ssoRankerPreferences]: Filename of dumped script: ll_append-alloca-2.i_Iteration1_Lasso [2022-10-17 10:27:01,278 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:27:01,279 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:27:01,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,310 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,312 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,315 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,322 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,324 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,327 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,336 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,342 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,344 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,349 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,354 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,360 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,362 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,367 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,374 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,377 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,380 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,393 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,472 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,475 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,478 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,482 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,485 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,488 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,505 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:27:01,779 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:27:01,784 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:27:01,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:01,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:01,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:01,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:01,803 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:01,804 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:01,804 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:01,804 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:01,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:01,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:01,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:27:01,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:01,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:01,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:01,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:01,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:01,883 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:01,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:01,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:01,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:01,884 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:01,885 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:01,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:01,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:27:01,897 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:01,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:01,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:01,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:01,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:01,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:01,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:01,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:01,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:01,956 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:01,957 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:01,957 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:01,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:27:01,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:01,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:01,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:01,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:01,986 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:01,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:27:01,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:01,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:01,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:01,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:01,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:01,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,000 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,000 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:27:02,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:27:02,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,144 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,159 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,185 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:27:02,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,247 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,257 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,267 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,267 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,268 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,268 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:27:02,285 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,324 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:27:02,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,399 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,418 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,419 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,420 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:27:02,432 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,470 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,491 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:27:02,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,541 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:02,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:02,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:27:02,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,623 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:27:02,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,693 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:27:02,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,719 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,759 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,782 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:27:02,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,846 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:27:02,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,866 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-10-17 10:27:02,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,886 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:27:02,891 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2022-10-17 10:27:02,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,933 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:27:02,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:02,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:02,946 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:02,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:02,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:02,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:02,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:02,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:02,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:02,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:02,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:02,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:02,987 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:02,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-10-17 10:27:02,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,010 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,031 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:27:03,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,041 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,069 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:27:03,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,081 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-10-17 10:27:03,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,102 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:27:03,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,110 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,111 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-10-17 10:27:03,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,174 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:27:03,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,249 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,261 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-10-17 10:27:03,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-10-17 10:27:03,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:27:03,281 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,314 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:27:03,342 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,381 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,391 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,391 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,391 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,391 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,392 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,392 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:27:03,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,450 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,452 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:27:03,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,511 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:27:03,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:27:03,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:27:03,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:27:03,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:27:03,537 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:27:03,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,574 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-10-17 10:27:03,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:27:03,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:27:03,586 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-10-17 10:27:03,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:27:03,594 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2022-10-17 10:27:03,595 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2022-10-17 10:27:03,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:27:03,621 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:27:03,670 INFO L443 ModelExtractionUtils]: Simplification made 14 calls to the SMT solver. [2022-10-17 10:27:03,670 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. [2022-10-17 10:27:03,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:27:03,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:03,685 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:27:03,702 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:27:03,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:27:03,725 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2022-10-17 10:27:03,725 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:27:03,725 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] [2022-10-17 10:27:03,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:03,782 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2022-10-17 10:27:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:03,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:27:03,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:03,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-17 10:27:03,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:04,004 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 [2022-10-17 10:27:04,007 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) [2022-10-17 10:27:04,139 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. [2022-10-17 10:27:04,141 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 [2022-10-17 10:27:04,154 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) [2022-10-17 10:27:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2022-10-17 10:27:04,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2022-10-17 10:27:04,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:27:04,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2022-10-17 10:27:04,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:27:04,159 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2022-10-17 10:27:04,170 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:04,178 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 37 transitions. [2022-10-17 10:27:04,179 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-10-17 10:27:04,180 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2022-10-17 10:27:04,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 37 transitions. [2022-10-17 10:27:04,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:04,184 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-10-17 10:27:04,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 37 transitions. [2022-10-17 10:27:04,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-10-17 10:27:04,212 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) [2022-10-17 10:27:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 33 transitions. [2022-10-17 10:27:04,217 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-10-17 10:27:04,217 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 33 transitions. [2022-10-17 10:27:04,217 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:27:04,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 33 transitions. [2022-10-17 10:27:04,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:04,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:04,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:04,222 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:04,222 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:04,223 INFO L748 eck$LassoCheckResult]: Stem: 145#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 146#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_#t~ret10#1.base, main_#t~ret10#1.offset, main_#t~ret11#1, main_~n~0#1, main_~x~0#1.base, main_~x~0#1.offset, main_~y~0#1.base, main_~y~0#1.offset, main_~y_length~0#1;main_~n~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 153#L574 assume !(main_~n~0#1 < 1); 142#L577 call main_#t~ret9#1.base, main_#t~ret9#1.offset := new_ll(main_~n~0#1);< 161#new_llENTRY ~n := #in~n; 162#L548 assume 0 == ~n;#res.base, #res.offset := 0, 0; 164#new_llFINAL assume true; 158#new_llEXIT >#57#return; 156#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 157#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 159#L566-3 [2022-10-17 10:27:04,223 INFO L750 eck$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 [2022-10-17 10:27:04,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,228 INFO L85 PathProgramCache]: Analyzing trace with hash 772923198, now seen corresponding path program 1 times [2022-10-17 10:27:04,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132159649] [2022-10-17 10:27:04,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:27:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:04,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:04,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132159649] [2022-10-17 10:27:04,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132159649] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:27:04,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:27:04,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:27:04,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502297736] [2022-10-17 10:27:04,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:27:04,547 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:27:04,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,549 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 1 times [2022-10-17 10:27:04,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171636785] [2022-10-17 10:27:04,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,566 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:04,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:04,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:27:04,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:27:04,627 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) [2022-10-17 10:27:04,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:04,717 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-10-17 10:27:04,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2022-10-17 10:27:04,719 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:04,720 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 31 states and 36 transitions. [2022-10-17 10:27:04,720 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-10-17 10:27:04,720 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-10-17 10:27:04,721 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 36 transitions. [2022-10-17 10:27:04,721 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:04,721 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 36 transitions. [2022-10-17 10:27:04,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 36 transitions. [2022-10-17 10:27:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2022-10-17 10:27:04,725 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) [2022-10-17 10:27:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-10-17 10:27:04,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-10-17 10:27:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:27:04,727 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-10-17 10:27:04,727 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:27:04,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2022-10-17 10:27:04,729 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:04,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:04,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:04,729 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:04,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:04,730 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 [2022-10-17 10:27:04,730 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 [2022-10-17 10:27:04,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,731 INFO L85 PathProgramCache]: Analyzing trace with hash -250149368, now seen corresponding path program 1 times [2022-10-17 10:27:04,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116036055] [2022-10-17 10:27:04,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:27:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:04,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:04,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116036055] [2022-10-17 10:27:04,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116036055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:27:04,881 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:27:04,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:27:04,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608440524] [2022-10-17 10:27:04,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:27:04,882 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:27:04,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 1 times [2022-10-17 10:27:04,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:04,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751249951] [2022-10-17 10:27:04,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:04,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:04,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:04,916 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:05,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:27:05,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:27:05,068 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) [2022-10-17 10:27:05,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:05,171 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-10-17 10:27:05,171 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 31 transitions. [2022-10-17 10:27:05,174 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:05,177 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 24 states and 28 transitions. [2022-10-17 10:27:05,177 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-10-17 10:27:05,178 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2022-10-17 10:27:05,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 28 transitions. [2022-10-17 10:27:05,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:05,178 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-10-17 10:27:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 28 transitions. [2022-10-17 10:27:05,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-10-17 10:27:05,183 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) [2022-10-17 10:27:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-10-17 10:27:05,187 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-10-17 10:27:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:27:05,189 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-10-17 10:27:05,189 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:27:05,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2022-10-17 10:27:05,191 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:05,191 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:05,191 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:05,192 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:05,192 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-10-17 10:27:05,192 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$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 288#new_llFINAL assume true; 308#new_llEXIT >#57#return; 302#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 303#L563 assume !(append_~x#1.base == 0 && append_~x#1.offset == 0);append_~s~0#1.base, append_~s~0#1.offset := append_~x#1.base, append_~x#1.offset; 304#L566-3 [2022-10-17 10:27:05,192 INFO L750 eck$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 [2022-10-17 10:27:05,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,193 INFO L85 PathProgramCache]: Analyzing trace with hash 704779872, now seen corresponding path program 1 times [2022-10-17 10:27:05,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767086284] [2022-10-17 10:27:05,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,263 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,264 INFO L85 PathProgramCache]: Analyzing trace with hash 2086, now seen corresponding path program 2 times [2022-10-17 10:27:05,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159818133] [2022-10-17 10:27:05,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:05,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:05,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:05,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1311374651, now seen corresponding path program 1 times [2022-10-17 10:27:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:05,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219095305] [2022-10-17 10:27:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:05,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:27:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:05,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:27:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:27:05,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:05,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219095305] [2022-10-17 10:27:05,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219095305] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:27:05,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284724806] [2022-10-17 10:27:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:05,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:27:05,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:27:05,876 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:27:05,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-10-17 10:27:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:05,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-17 10:27:05,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:27:05,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-17 10:27:06,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 10:27:06,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 10:27:06,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-17 10:27:06,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-17 10:27:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:27:06,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:27:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:27:06,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284724806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:27:06,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:27:06,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 21 [2022-10-17 10:27:06,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505932490] [2022-10-17 10:27:06,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:27:06,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:06,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-17 10:27:06,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2022-10-17 10:27:06,700 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) [2022-10-17 10:27:07,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:07,104 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-10-17 10:27:07,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2022-10-17 10:27:07,105 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:07,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 34 states and 40 transitions. [2022-10-17 10:27:07,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 31 [2022-10-17 10:27:07,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2022-10-17 10:27:07,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 40 transitions. [2022-10-17 10:27:07,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:07,107 INFO L218 hiAutomatonCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-10-17 10:27:07,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 40 transitions. [2022-10-17 10:27:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2022-10-17 10:27:07,110 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) [2022-10-17 10:27:07,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-10-17 10:27:07,111 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-10-17 10:27:07,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-17 10:27:07,113 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-10-17 10:27:07,113 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:27:07,113 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 37 transitions. [2022-10-17 10:27:07,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:07,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:07,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:07,115 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:27:07,115 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:07,115 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$(#t~ret3.base, #t~ret3.offset, ~head~0.base, 4 + ~head~0.offset, 8);havoc #t~ret3.base, #t~ret3.offset;#res.base, #res.offset := ~head~0.base, ~head~0.offset; 528#new_llFINAL assume true; 527#new_llEXIT >#57#return; 515#L577-1 main_~x~0#1.base, main_~x~0#1.offset := main_#t~ret9#1.base, main_#t~ret9#1.offset;havoc main_#t~ret9#1.base, main_#t~ret9#1.offset;assume { :begin_inline_append } true;append_#in~x#1.base, append_#in~x#1.offset, append_#in~y#1.base, append_#in~y#1.offset := main_~x~0#1.base, main_~x~0#1.offset, main_~x~0#1.base, main_~x~0#1.offset;havoc append_#res#1.base, append_#res#1.offset;havoc append_#t~mem7#1.base, append_#t~mem7#1.offset, append_#t~mem6#1.base, append_#t~mem6#1.offset, append_~x#1.base, append_~x#1.offset, append_~y#1.base, append_~y#1.offset, append_~s~0#1.base, append_~s~0#1.offset;append_~x#1.base, append_~x#1.offset := append_#in~x#1.base, append_#in~x#1.offset;append_~y#1.base, append_~y#1.offset := append_#in~y#1.base, append_#in~y#1.offset; 516#L563 assume append_~x#1.base == 0 && append_~x#1.offset == 0;append_#res#1.base, append_#res#1.offset := append_~y#1.base, append_~y#1.offset; 502#L569 main_#t~ret10#1.base, main_#t~ret10#1.offset := append_#res#1.base, append_#res#1.offset;assume { :end_inline_append } true;main_~y~0#1.base, main_~y~0#1.offset := main_#t~ret10#1.base, main_#t~ret10#1.offset;havoc main_#t~ret10#1.base, main_#t~ret10#1.offset; 503#L579 call main_#t~ret11#1 := length(main_~y~0#1.base, main_~y~0#1.offset);< 514#lengthENTRY [2022-10-17 10:27:07,116 INFO L750 eck$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 [2022-10-17 10:27:07,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:07,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1311376214, now seen corresponding path program 1 times [2022-10-17 10:27:07,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:07,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771737041] [2022-10-17 10:27:07,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:07,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:07,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:27:07,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:27:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:27:07,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:27:07,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:27:07,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771737041] [2022-10-17 10:27:07,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771737041] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:27:07,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:27:07,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:27:07,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940336482] [2022-10-17 10:27:07,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:27:07,219 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:27:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:07,220 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 2 times [2022-10-17 10:27:07,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:07,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687826164] [2022-10-17 10:27:07,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:07,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:07,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:27:07,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:27:07,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:27:07,340 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) [2022-10-17 10:27:07,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:27:07,410 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2022-10-17 10:27:07,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 41 transitions. [2022-10-17 10:27:07,413 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:07,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 41 transitions. [2022-10-17 10:27:07,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2022-10-17 10:27:07,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2022-10-17 10:27:07,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 41 transitions. [2022-10-17 10:27:07,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:27:07,417 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 41 transitions. [2022-10-17 10:27:07,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 41 transitions. [2022-10-17 10:27:07,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-10-17 10:27:07,425 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) [2022-10-17 10:27:07,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-10-17 10:27:07,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-10-17 10:27:07,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:27:07,429 INFO L428 stractBuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-10-17 10:27:07,430 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:27:07,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 35 transitions. [2022-10-17 10:27:07,430 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-10-17 10:27:07,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:27:07,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:27:07,432 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] [2022-10-17 10:27:07,432 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:27:07,432 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 [2022-10-17 10:27:07,432 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 [2022-10-17 10:27:07,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:07,433 INFO L85 PathProgramCache]: Analyzing trace with hash -139719339, now seen corresponding path program 1 times [2022-10-17 10:27:07,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:07,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089059050] [2022-10-17 10:27:07,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:07,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,494 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:07,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:07,494 INFO L85 PathProgramCache]: Analyzing trace with hash 37905, now seen corresponding path program 3 times [2022-10-17 10:27:07,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:07,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115905860] [2022-10-17 10:27:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:07,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:27:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash -555510211, now seen corresponding path program 1 times [2022-10-17 10:27:07,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:27:07,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992019010] [2022-10-17 10:27:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:27:07,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:27:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:07,571 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:27:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:09,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:27:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:27:09,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:27:09 BoogieIcfgContainer [2022-10-17 10:27:09,823 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:27:09,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:27:09,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:27:09,824 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:27:09,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:26:59" (3/4) ... [2022-10-17 10:27:09,843 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-10-17 10:27:09,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:27:09,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:27:09,908 INFO L158 Benchmark]: Toolchain (without parser) took 11206.50ms. Allocated memory was 96.5MB in the beginning and 180.4MB in the end (delta: 83.9MB). Free memory was 57.9MB in the beginning and 148.8MB in the end (delta: -90.9MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,908 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:27:09,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 599.20ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 57.7MB in the beginning and 114.2MB in the end (delta: -56.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.59ms. Allocated memory is still 146.8MB. Free memory was 113.7MB in the beginning and 112.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,910 INFO L158 Benchmark]: Boogie Preprocessor took 58.60ms. Allocated memory is still 146.8MB. Free memory was 112.1MB in the beginning and 110.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,910 INFO L158 Benchmark]: RCFGBuilder took 390.96ms. Allocated memory is still 146.8MB. Free memory was 110.5MB in the beginning and 97.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,911 INFO L158 Benchmark]: BuchiAutomizer took 9998.53ms. Allocated memory was 146.8MB in the beginning and 180.4MB in the end (delta: 33.6MB). Free memory was 97.4MB in the beginning and 50.4MB in the end (delta: 47.0MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,911 INFO L158 Benchmark]: Witness Printer took 83.69ms. Allocated memory is still 180.4MB. Free memory was 50.4MB in the beginning and 148.8MB in the end (delta: -98.5MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-10-17 10:27:09,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 96.5MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 599.20ms. Allocated memory was 96.5MB in the beginning and 146.8MB in the end (delta: 50.3MB). Free memory was 57.7MB in the beginning and 114.2MB in the end (delta: -56.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.59ms. Allocated memory is still 146.8MB. Free memory was 113.7MB in the beginning and 112.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.60ms. Allocated memory is still 146.8MB. Free memory was 112.1MB in the beginning and 110.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.96ms. Allocated memory is still 146.8MB. Free memory was 110.5MB in the beginning and 97.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 9998.53ms. Allocated memory was 146.8MB in the beginning and 180.4MB in the end (delta: 33.6MB). Free memory was 97.4MB in the beginning and 50.4MB in the end (delta: 47.0MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. * Witness Printer took 83.69ms. Allocated memory is still 180.4MB. Free memory was 50.4MB in the beginning and 148.8MB in the end (delta: -98.5MB). Peak memory consumption was 2.2MB. 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 9.8s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 8.6s. Construction of modules took 0.3s. 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, 66 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 63 mSDsluCounter, 358 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 440 IncrementalHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 78 mSDtfsCounter, 440 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: 151ms 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! [2022-10-17 10:27:09,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-10-17 10:27:10,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e4c8650-0446-4ab1-9a30-4050a072ca20/bin/uautomizer-J5u9QxTXDZ/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)