./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcspn.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:28:36,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:28:36,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:28:36,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:28:36,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:28:36,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:28:36,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:28:36,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:28:36,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:28:36,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:28:36,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:28:36,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:28:36,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:28:36,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:28:36,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:28:36,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:28:36,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:28:36,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:28:36,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:28:36,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:28:36,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:28:36,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:28:36,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:28:36,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:28:36,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:28:36,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:28:36,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:28:36,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:28:36,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:28:36,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:28:36,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:28:36,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:28:36,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:28:36,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:28:36,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:28:36,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:28:36,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:28:36,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:28:36,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:28:36,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:28:36,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:28:36,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-20 09:28:36,373 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:28:36,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:28:36,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:28:36,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:28:36,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:28:36,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:28:36,378 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:28:36,378 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-20 09:28:36,378 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-20 09:28:36,379 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-20 09:28:36,380 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-20 09:28:36,380 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-20 09:28:36,381 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-20 09:28:36,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:28:36,381 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:28:36,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:28:36,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:28:36,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-20 09:28:36,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-20 09:28:36,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-20 09:28:36,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:28:36,383 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-20 09:28:36,383 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:28:36,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-20 09:28:36,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:28:36,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:28:36,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:28:36,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:28:36,387 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-20 09:28:36,388 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_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 [2022-11-20 09:28:36,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:28:36,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:28:36,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:28:36,711 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:28:36,712 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:28:36,713 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/termination-dietlibc/strcspn.i [2022-11-20 09:28:39,996 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:28:40,247 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:28:40,248 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/sv-benchmarks/c/termination-dietlibc/strcspn.i [2022-11-20 09:28:40,261 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/data/193680373/6ccc168a109e464c8c227992afb0da00/FLAG788845f87 [2022-11-20 09:28:40,278 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/data/193680373/6ccc168a109e464c8c227992afb0da00 [2022-11-20 09:28:40,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:28:40,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:28:40,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:40,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:28:40,290 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:28:40,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2ac05f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40, skipping insertion in model container [2022-11-20 09:28:40,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:28:40,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:28:40,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:40,649 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:28:40,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:28:40,730 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:28:40,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40 WrapperNode [2022-11-20 09:28:40,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:28:40,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:40,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:28:40,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:28:40,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,810 INFO L138 Inliner]: procedures = 113, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-20 09:28:40,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:28:40,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:28:40,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:28:40,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:28:40,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,859 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:28:40,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:28:40,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:28:40,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:28:40,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (1/1) ... [2022-11-20 09:28:40,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:40,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:40,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:40,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-20 09:28:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:28:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:28:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:28:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:28:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:28:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:28:41,088 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:28:41,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:28:41,345 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:28:41,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:28:41,358 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 09:28:41,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:41 BoogieIcfgContainer [2022-11-20 09:28:41,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:28:41,365 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-20 09:28:41,365 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-20 09:28:41,370 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-20 09:28:41,371 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:28:41,372 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:28:40" (1/3) ... [2022-11-20 09:28:41,375 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b04f2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:28:41, skipping insertion in model container [2022-11-20 09:28:41,375 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:28:41,375 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:28:40" (2/3) ... [2022-11-20 09:28:41,376 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b04f2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:28:41, skipping insertion in model container [2022-11-20 09:28:41,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-20 09:28:41,377 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:41" (3/3) ... [2022-11-20 09:28:41,385 INFO L332 chiAutomizerObserver]: Analyzing ICFG strcspn.i [2022-11-20 09:28:41,468 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-20 09:28:41,468 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-20 09:28:41,468 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-20 09:28:41,469 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-20 09:28:41,469 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-20 09:28:41,469 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-20 09:28:41,469 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-20 09:28:41,469 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-20 09:28:41,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 09:28:41,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:41,498 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:41,505 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:28:41,505 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 09:28:41,505 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-20 09:28:41,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,507 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 09:28:41,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:41,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:41,509 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:28:41,509 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-11-20 09:28:41,517 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 17#L519true assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 10#L523true assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 6#L510-4true [2022-11-20 09:28:41,518 INFO L750 eck$LassoCheckResult]: Loop: 6#L510-4true call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 12#L510-1true assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 9#L511-4true assume !true; 14#L511-5true strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 11#L510-3true strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 6#L510-4true [2022-11-20 09:28:41,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:41,526 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-11-20 09:28:41,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:41,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720384043] [2022-11-20 09:28:41,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:41,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:41,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:41,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:41,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:41,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:41,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:41,768 INFO L85 PathProgramCache]: Analyzing trace with hash 44069891, now seen corresponding path program 1 times [2022-11-20 09:28:41,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:41,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450782654] [2022-11-20 09:28:41,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:41,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:41,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:41,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:41,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450782654] [2022-11-20 09:28:41,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450782654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:41,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:41,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:41,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139928390] [2022-11-20 09:28:41,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:41,829 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-20 09:28:41,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:41,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:28:41,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:28:41,871 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:41,879 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2022-11-20 09:28:41,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2022-11-20 09:28:41,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 09:28:41,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 13 transitions. [2022-11-20 09:28:41,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-11-20 09:28:41,888 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-20 09:28:41,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2022-11-20 09:28:41,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:41,889 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-20 09:28:41,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2022-11-20 09:28:41,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-20 09:28:41,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-20 09:28:41,920 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-20 09:28:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:28:41,925 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-20 09:28:41,925 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-20 09:28:41,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2022-11-20 09:28:41,926 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-11-20 09:28:41,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:41,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:41,927 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-20 09:28:41,927 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-20 09:28:41,928 INFO L748 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 52#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 48#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 47#L510-4 [2022-11-20 09:28:41,928 INFO L750 eck$LassoCheckResult]: Loop: 47#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 49#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 42#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 43#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 53#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 46#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 47#L510-4 [2022-11-20 09:28:41,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:41,929 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2022-11-20 09:28:41,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:41,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807972973] [2022-11-20 09:28:41,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:41,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:41,964 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:41,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:41,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1365737035, now seen corresponding path program 1 times [2022-11-20 09:28:41,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:41,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224206132] [2022-11-20 09:28:41,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:41,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:42,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:42,002 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:42,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:42,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:42,014 INFO L85 PathProgramCache]: Analyzing trace with hash 736220402, now seen corresponding path program 1 times [2022-11-20 09:28:42,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:42,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522201992] [2022-11-20 09:28:42,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:42,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:42,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:42,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:42,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:43,343 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:43,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:43,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:43,344 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:43,345 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:43,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:43,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:43,345 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:43,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration2_Lasso [2022-11-20 09:28:43,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:43,346 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:43,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,339 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,342 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,346 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,349 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,352 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,362 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,365 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,368 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,376 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,379 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,384 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,387 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,390 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:44,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:45,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:45,156 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:45,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-20 09:28:45,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,211 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,226 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,245 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-20 09:28:45,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,261 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:45,261 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,261 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,263 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:45,264 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:45,279 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,288 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-20 09:28:45,333 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 [2022-11-20 09:28:45,348 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,377 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-20 09:28:45,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,407 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,408 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,420 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,431 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-20 09:28:45,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:45,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,450 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2022-11-20 09:28:45,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,452 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2022-11-20 09:28:45,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:45,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-20 09:28:45,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,504 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,525 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,541 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-20 09:28:45,548 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,573 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,573 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,599 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,612 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,625 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-20 09:28:45,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,643 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:45,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:45,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,670 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:45,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-20 09:28:45,695 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:45,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:45,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:45,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:45,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:45,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:45,731 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:45,794 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2022-11-20 09:28:45,795 INFO L444 ModelExtractionUtils]: 14 out of 28 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-11-20 09:28:45,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:45,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:45,842 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:45,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-20 09:28:45,854 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:45,896 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 09:28:45,896 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:45,896 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_1, ULTIMATE.start_strcspn_~s#1.offset) = 1*v_rep(select #length ULTIMATE.start_main_~in~0#1.base)_1 - 1*ULTIMATE.start_strcspn_~s#1.offset Supporting invariants [] [2022-11-20 09:28:45,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:46,020 INFO L156 tatePredicateManager]: 18 out of 19 supporting invariants were superfluous and have been removed [2022-11-20 09:28:46,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:46,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:28:46,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:46,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:46,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:28:46,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:46,233 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:28:46,235 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 23 transitions. Complement of second has 4 states. [2022-11-20 09:28:46,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:46,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-20 09:28:46,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-20 09:28:46,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:46,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-20 09:28:46,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:46,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 4 letters. Loop has 12 letters. [2022-11-20 09:28:46,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:46,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2022-11-20 09:28:46,306 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:46,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 21 transitions. [2022-11-20 09:28:46,307 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-20 09:28:46,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-20 09:28:46,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2022-11-20 09:28:46,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:46,308 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 09:28:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2022-11-20 09:28:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-20 09:28:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2022-11-20 09:28:46,311 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 09:28:46,311 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2022-11-20 09:28:46,311 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-20 09:28:46,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2022-11-20 09:28:46,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:46,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:46,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:46,313 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-11-20 09:28:46,313 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 09:28:46,313 INFO L748 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 209#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 220#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 212#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 213#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 214#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 204#L511-4 [2022-11-20 09:28:46,313 INFO L750 eck$LassoCheckResult]: Loop: 204#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 205#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 216#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 217#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 204#L511-4 [2022-11-20 09:28:46,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2022-11-20 09:28:46,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:46,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539122972] [2022-11-20 09:28:46,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:46,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:46,358 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:46,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:46,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:46,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 1 times [2022-11-20 09:28:46,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:46,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468245115] [2022-11-20 09:28:46,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:46,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:46,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:46,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:46,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash 736222132, now seen corresponding path program 1 times [2022-11-20 09:28:46,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:46,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847995404] [2022-11-20 09:28:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:46,431 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:46,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:47,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:47,616 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:47,616 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:47,617 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:47,617 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:47,617 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:47,617 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:47,617 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:47,618 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:47,618 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration3_Lasso [2022-11-20 09:28:47,618 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:47,618 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:47,623 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:47,626 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,451 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,454 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,457 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,474 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,476 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,479 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,487 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:48,493 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:49,335 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:49,335 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:49,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,340 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-20 09:28:49,347 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:49,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:49,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:49,362 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,371 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-20 09:28:49,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,389 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,389 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,420 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-20 09:28:49,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,458 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,463 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-20 09:28:49,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,480 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,480 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,483 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,491 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,496 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-20 09:28:49,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,517 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,557 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-20 09:28:49,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,584 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,584 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,613 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-20 09:28:49,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,631 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2022-11-20 09:28:49,631 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-11-20 09:28:49,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,661 INFO L401 nArgumentSynthesizer]: We have 56 Motzkin's Theorem applications. [2022-11-20 09:28:49,661 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-11-20 09:28:49,710 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,721 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,725 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-20 09:28:49,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,747 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,748 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,764 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:49,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:49,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:49,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:49,775 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:49,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:49,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-20 09:28:49,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:49,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:49,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:49,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:49,821 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:49,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:49,867 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:50,025 INFO L443 ModelExtractionUtils]: Simplification made 32 calls to the SMT solver. [2022-11-20 09:28:50,026 INFO L444 ModelExtractionUtils]: 8 out of 52 variables were initially zero. Simplification set additionally 40 variables to zero. [2022-11-20 09:28:50,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:50,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:50,028 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:50,042 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:50,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-20 09:28:50,084 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 09:28:50,084 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:50,084 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_2, ULTIMATE.start_strcspn_~i~0#1, ULTIMATE.start_strcspn_~reject#1.offset) = 1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_2 - 1*ULTIMATE.start_strcspn_~i~0#1 - 1*ULTIMATE.start_strcspn_~reject#1.offset Supporting invariants [] [2022-11-20 09:28:50,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:50,198 INFO L156 tatePredicateManager]: 20 out of 20 supporting invariants were superfluous and have been removed [2022-11-20 09:28:50,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:50,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 09:28:50,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:50,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 09:28:50,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:50,320 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-20 09:28:50,320 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:50,362 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 51 transitions. Complement of second has 5 states. [2022-11-20 09:28:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:50,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:50,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2022-11-20 09:28:50,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2022-11-20 09:28:50,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:50,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2022-11-20 09:28:50,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:50,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2022-11-20 09:28:50,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:50,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 51 transitions. [2022-11-20 09:28:50,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:50,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 33 transitions. [2022-11-20 09:28:50,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 09:28:50,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2022-11-20 09:28:50,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2022-11-20 09:28:50,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:50,384 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-20 09:28:50,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2022-11-20 09:28:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2022-11-20 09:28:50,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:50,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-20 09:28:50,391 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-20 09:28:50,391 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-20 09:28:50,392 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-20 09:28:50,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2022-11-20 09:28:50,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:50,394 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:50,394 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:50,395 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:50,395 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 09:28:50,395 INFO L748 eck$LassoCheckResult]: Stem: 401#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 402#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 414#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 405#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 406#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 408#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 409#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 417#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 415#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 403#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 404#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 407#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 397#L511-4 [2022-11-20 09:28:50,396 INFO L750 eck$LassoCheckResult]: Loop: 397#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 398#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 410#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 411#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 397#L511-4 [2022-11-20 09:28:50,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:50,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1161797001, now seen corresponding path program 2 times [2022-11-20 09:28:50,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:50,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492988548] [2022-11-20 09:28:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:50,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:50,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:50,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:50,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:50,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 2 times [2022-11-20 09:28:50,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:50,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817350637] [2022-11-20 09:28:50,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:50,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:50,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:50,525 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:50,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash -967302850, now seen corresponding path program 1 times [2022-11-20 09:28:50,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:50,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889466509] [2022-11-20 09:28:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:50,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:50,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:51,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:51,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889466509] [2022-11-20 09:28:51,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889466509] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:28:51,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109198360] [2022-11-20 09:28:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:28:51,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:51,060 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:28:51,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-20 09:28:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:51,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-20 09:28:51,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:51,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-20 09:28:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:51,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:28:51,329 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-20 09:28:51,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 11 [2022-11-20 09:28:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:51,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109198360] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:28:51,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:28:51,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2022-11-20 09:28:51,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741887260] [2022-11-20 09:28:51,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:28:51,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:51,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-20 09:28:51,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-20 09:28:51,426 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 15 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:51,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:28:51,551 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2022-11-20 09:28:51,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 51 transitions. [2022-11-20 09:28:51,555 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:51,556 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 39 transitions. [2022-11-20 09:28:51,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-11-20 09:28:51,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-11-20 09:28:51,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 39 transitions. [2022-11-20 09:28:51,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:51,557 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-11-20 09:28:51,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 39 transitions. [2022-11-20 09:28:51,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2022-11-20 09:28:51,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-20 09:28:51,562 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-20 09:28:51,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:28:51,564 INFO L428 stractBuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-20 09:28:51,564 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-20 09:28:51,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2022-11-20 09:28:51,566 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:51,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:51,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:51,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:51,568 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 09:28:51,568 INFO L748 eck$LassoCheckResult]: Stem: 581#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 582#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 598#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 587#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 588#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 599#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 585#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 586#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 596#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 597#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 601#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 602#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 600#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 589#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 590#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 591#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 583#L511-4 [2022-11-20 09:28:51,568 INFO L750 eck$LassoCheckResult]: Loop: 583#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 584#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 594#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 595#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 583#L511-4 [2022-11-20 09:28:51,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1375356158, now seen corresponding path program 2 times [2022-11-20 09:28:51,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:51,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082075673] [2022-11-20 09:28:51,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:51,604 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:51,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:51,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 3 times [2022-11-20 09:28:51,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:51,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855529805] [2022-11-20 09:28:51,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:51,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:51,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:51,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:51,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1858115515, now seen corresponding path program 3 times [2022-11-20 09:28:51,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:51,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961740077] [2022-11-20 09:28:51,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:51,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:51,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:51,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:53,288 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:28:53,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:28:53,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:28:53,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:28:53,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:28:53,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:53,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:28:53,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:28:53,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration5_Lasso [2022-11-20 09:28:53,289 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:28:53,289 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:28:53,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,307 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,310 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,320 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,324 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,328 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,331 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:53,334 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:54,356 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:54,364 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:54,368 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:54,370 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:54,374 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:28:55,425 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:28:55,425 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:28:55,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,435 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-20 09:28:55,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:55,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:55,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,486 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-20 09:28:55,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,506 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,506 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,507 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,529 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-20 09:28:55,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,578 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-20 09:28:55,597 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,598 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,626 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-20 09:28:55,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,646 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,676 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-20 09:28:55,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,697 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,697 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,698 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,712 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-20 09:28:55,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,734 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:55,734 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:55,751 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,756 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-20 09:28:55,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,777 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,777 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,791 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,796 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-20 09:28:55,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:55,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:55,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,854 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-20 09:28:55,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:55,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:55,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,898 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,903 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-20 09:28:55,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:55,948 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:55,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:55,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-20 09:28:55,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:55,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:28:55,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:55,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:55,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:55,973 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:28:55,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:28:55,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:55,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:55,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:55,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:56,000 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:56,008 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:56,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-20 09:28:56,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:56,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:56,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:56,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:56,025 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:56,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:56,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:56,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:56,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:56,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:56,042 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:56,047 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:56,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-20 09:28:56,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:56,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:56,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:56,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:56,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:56,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:56,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:56,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:56,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:56,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:56,101 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:56,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:56,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-20 09:28:56,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:56,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:56,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:56,121 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:56,130 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:56,130 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:56,155 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:28:56,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:56,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:56,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:56,166 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:56,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:28:56,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-20 09:28:56,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:28:56,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:28:56,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:28:56,189 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:28:56,216 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:28:56,216 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:28:56,259 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:28:56,424 INFO L443 ModelExtractionUtils]: Simplification made 38 calls to the SMT solver. [2022-11-20 09:28:56,425 INFO L444 ModelExtractionUtils]: 8 out of 52 variables were initially zero. Simplification set additionally 39 variables to zero. [2022-11-20 09:28:56,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:28:56,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:28:56,430 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:28:56,432 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:28:56,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-20 09:28:56,468 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-20 09:28:56,468 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:28:56,468 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_3, ULTIMATE.start_strcspn_~i~0#1) = 36893488147419103231*v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_3 - 2*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_3 + 18446744073709551615*v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_3 >= 0] [2022-11-20 09:28:56,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:56,681 INFO L156 tatePredicateManager]: 28 out of 30 supporting invariants were superfluous and have been removed [2022-11-20 09:28:56,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:56,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 09:28:56,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:56,844 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 09:28:56,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 09:28:56,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-20 09:28:56,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-20 09:28:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 09:28:57,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:57,268 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2022-11-20 09:28:57,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:57,349 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 30 transitions. Complement of second has 5 states. [2022-11-20 09:28:57,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:57,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:57,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-20 09:28:57,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-20 09:28:57,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:57,354 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:57,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 09:28:57,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:57,547 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:28:57,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-20 09:28:57,589 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 09:28:57,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 09:28:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:57,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 09:28:57,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:58,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:58,009 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 3 loop predicates [2022-11-20 09:28:58,009 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:58,104 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 30 transitions. Complement of second has 5 states. [2022-11-20 09:28:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-20 09:28:58,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-20 09:28:58,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-20 09:28:58,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:58,107 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:28:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:58,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-20 09:28:58,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:58,265 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 09:28:58,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-20 09:28:58,294 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-20 09:28:58,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-20 09:28:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:58,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 09:28:58,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:28:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:58,699 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2022-11-20 09:28:58,699 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:58,929 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 63 transitions. Complement of second has 11 states. [2022-11-20 09:28:58,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2022-11-20 09:28:58,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:58,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2022-11-20 09:28:58,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 4 letters. [2022-11-20 09:28:58,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:58,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 20 letters. Loop has 4 letters. [2022-11-20 09:28:58,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:58,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 8 letters. [2022-11-20 09:28:58,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:28:58,933 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 63 transitions. [2022-11-20 09:28:58,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:58,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 42 states and 46 transitions. [2022-11-20 09:28:58,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 09:28:58,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-20 09:28:58,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 46 transitions. [2022-11-20 09:28:58,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:28:58,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-20 09:28:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 46 transitions. [2022-11-20 09:28:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2022-11-20 09:28:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 36 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-11-20 09:28:58,941 INFO L240 hiAutomatonCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-20 09:28:58,941 INFO L428 stractBuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-11-20 09:28:58,941 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-20 09:28:58,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2022-11-20 09:28:58,942 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:28:58,942 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:28:58,942 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:28:58,943 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2022-11-20 09:28:58,944 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 09:28:58,944 INFO L748 eck$LassoCheckResult]: Stem: 1092#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1093#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1104#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1096#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1097#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1106#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1118#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1116#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1115#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1107#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1108#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1117#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1105#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1094#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1095#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1099#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1090#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1091#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1102#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1103#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1114#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1113#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1112#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1111#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1109#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1098#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1088#L511-4 [2022-11-20 09:28:58,944 INFO L750 eck$LassoCheckResult]: Loop: 1088#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1089#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1100#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1101#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1088#L511-4 [2022-11-20 09:28:58,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:58,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1550213327, now seen corresponding path program 4 times [2022-11-20 09:28:58,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:58,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091139677] [2022-11-20 09:28:58,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:58,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:58,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:58,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:58,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:58,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 4 times [2022-11-20 09:28:58,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:58,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965242800] [2022-11-20 09:28:58,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:58,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:58,993 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:58,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:28:58,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:58,997 INFO L85 PathProgramCache]: Analyzing trace with hash 229061526, now seen corresponding path program 5 times [2022-11-20 09:28:58,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:58,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846373484] [2022-11-20 09:28:58,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:58,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:59,023 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:28:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:28:59,062 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:01,103 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:29:01,104 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:29:01,104 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:29:01,104 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:29:01,104 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:29:01,104 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:01,104 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:29:01,104 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:29:01,104 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration6_Lasso [2022-11-20 09:29:01,104 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:29:01,104 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:29:01,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:01,112 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:01,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,275 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,278 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,283 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,301 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,304 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:02,830 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-11-20 09:29:04,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:29:04,826 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:29:04,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:04,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:04,834 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:04,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-11-20 09:29:04,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:04,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:04,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:29:04,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:04,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:04,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:04,849 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:29:04,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:29:04,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:04,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-11-20 09:29:04,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:04,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:04,855 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:04,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-20 09:29:04,859 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:04,871 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:04,871 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:04,871 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:04,871 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:04,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:04,873 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:04,877 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:04,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:04,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:04,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:04,882 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:04,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-20 09:29:04,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:04,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:04,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:04,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:04,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:04,902 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:04,902 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:04,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:04,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:04,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:04,915 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:04,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-20 09:29:04,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:04,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:04,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:04,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:04,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:04,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:04,931 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:04,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:04,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-11-20 09:29:04,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:04,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:04,939 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:04,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:04,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-20 09:29:04,955 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:04,955 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2022-11-20 09:29:04,955 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-11-20 09:29:04,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:05,115 INFO L401 nArgumentSynthesizer]: We have 328 Motzkin's Theorem applications. [2022-11-20 09:29:05,115 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-11-20 09:29:05,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:05,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-11-20 09:29:05,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:05,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:05,447 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:05,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2022-11-20 09:29:05,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:05,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:05,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:05,465 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:05,465 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:05,479 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:05,479 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:05,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:29:05,772 INFO L443 ModelExtractionUtils]: Simplification made 44 calls to the SMT solver. [2022-11-20 09:29:05,772 INFO L444 ModelExtractionUtils]: 9 out of 52 variables were initially zero. Simplification set additionally 40 variables to zero. [2022-11-20 09:29:05,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:05,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:05,774 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:05,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-11-20 09:29:05,781 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:29:05,805 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-20 09:29:05,805 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:29:05,805 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_4, ULTIMATE.start_strcspn_~i~0#1) = 5*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_4 - 2*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [] [2022-11-20 09:29:05,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:06,010 INFO L156 tatePredicateManager]: 30 out of 31 supporting invariants were superfluous and have been removed [2022-11-20 09:29:06,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:06,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 09:29:06,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:06,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:06,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:29:06,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:06,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:06,453 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2022-11-20 09:29:06,453 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:06,510 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 41 transitions. Complement of second has 5 states. [2022-11-20 09:29:06,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-20 09:29:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:06,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-20 09:29:06,513 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2022-11-20 09:29:06,513 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:06,514 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:29:06,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:06,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 09:29:06,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:06,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:29:06,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:06,937 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 3 loop predicates [2022-11-20 09:29:06,937 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:06,993 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 41 transitions. Complement of second has 5 states. [2022-11-20 09:29:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2022-11-20 09:29:06,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2022-11-20 09:29:06,997 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2022-11-20 09:29:06,997 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:06,997 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:29:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 09:29:07,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:07,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:29:07,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:07,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:07,415 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2022-11-20 09:29:07,415 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:07,626 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 66 states and 74 transitions. Complement of second has 13 states. [2022-11-20 09:29:07,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 5 stem states 2 non-accepting loop states 2 accepting loop states [2022-11-20 09:29:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:07,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 50 transitions. [2022-11-20 09:29:07,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 4 letters. [2022-11-20 09:29:07,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:07,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 30 letters. Loop has 4 letters. [2022-11-20 09:29:07,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:07,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 8 letters. [2022-11-20 09:29:07,629 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:07,629 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 74 transitions. [2022-11-20 09:29:07,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:29:07,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 57 transitions. [2022-11-20 09:29:07,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2022-11-20 09:29:07,631 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2022-11-20 09:29:07,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 57 transitions. [2022-11-20 09:29:07,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-20 09:29:07,631 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 57 transitions. [2022-11-20 09:29:07,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 57 transitions. [2022-11-20 09:29:07,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2022-11-20 09:29:07,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-11-20 09:29:07,635 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-20 09:29:07,635 INFO L428 stractBuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-11-20 09:29:07,635 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-20 09:29:07,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 52 transitions. [2022-11-20 09:29:07,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-11-20 09:29:07,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-20 09:29:07,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-20 09:29:07,637 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-11-20 09:29:07,637 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-20 09:29:07,638 INFO L748 eck$LassoCheckResult]: Stem: 1740#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1741#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1752#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1 % 18446744073709551616);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1744#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1 % 18446744073709551616);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1745#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1747#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1738#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1739#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1756#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1781#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1780#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1779#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1778#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1777#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1754#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1755#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1782#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1770#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1750#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1751#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1757#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1767#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1753#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1742#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1743#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1776#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1775#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1771#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1772#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1765#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1766#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1762#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1761#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1760#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1758#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1746#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1736#L511-4 [2022-11-20 09:29:07,638 INFO L750 eck$LassoCheckResult]: Loop: 1736#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1737#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1748#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1749#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1736#L511-4 [2022-11-20 09:29:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:07,639 INFO L85 PathProgramCache]: Analyzing trace with hash -43865248, now seen corresponding path program 6 times [2022-11-20 09:29:07,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:07,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164914066] [2022-11-20 09:29:07,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:07,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:07,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:07,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:07,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:07,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 5 times [2022-11-20 09:29:07,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:07,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631110620] [2022-11-20 09:29:07,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:07,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:07,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:07,686 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:07,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash -345387609, now seen corresponding path program 7 times [2022-11-20 09:29:07,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:07,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922204581] [2022-11-20 09:29:07,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:07,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:07,709 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 09:29:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 09:29:07,761 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 09:29:10,214 INFO L210 LassoAnalysis]: Preferences: [2022-11-20 09:29:10,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-20 09:29:10,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-20 09:29:10,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-20 09:29:10,214 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-20 09:29:10,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:10,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-20 09:29:10,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-20 09:29:10,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration7_Lasso [2022-11-20 09:29:10,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-20 09:29:10,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-20 09:29:10,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,229 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,231 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,235 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:10,238 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,431 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,433 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,435 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,436 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,438 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,444 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-20 09:29:11,915 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2022-11-20 09:29:23,888 WARN L233 SmtUtils]: Spent 11.91s on a formula simplification. DAG size of input: 298 DAG size of output: 150 (called from [L 68] de.uni_freiburg.informatik.ultimate.icfgtransformer.transformulatransformers.SimplifyPreprocessor.process) [2022-11-20 09:29:24,155 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-20 09:29:24,156 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-20 09:29:24,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,163 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-11-20 09:29:24,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:29:24,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,182 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,182 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:29:24,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:29:24,191 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,197 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,200 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-11-20 09:29:24,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,212 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:29:24,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,213 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,213 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:29:24,213 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:29:24,215 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2022-11-20 09:29:24,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,219 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-11-20 09:29:24,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,233 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,235 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:24,235 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:24,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,269 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2022-11-20 09:29:24,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,286 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,288 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:24,288 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:24,298 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,304 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,311 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2022-11-20 09:29:24,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:29:24,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:29:24,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:29:24,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,351 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2022-11-20 09:29:24,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:29:24,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:29:24,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:29:24,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,390 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,395 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2022-11-20 09:29:24,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-20 09:29:24,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,410 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,411 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-20 09:29:24,411 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-20 09:29:24,427 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,432 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2022-11-20 09:29:24,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,456 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:24,456 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:24,479 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,484 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2022-11-20 09:29:24,503 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:24,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:24,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,529 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:24,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:24,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2022-11-20 09:29:24,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,566 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,570 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2022-11-20 09:29:24,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:24,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:24,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:24,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:24,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:24,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:24,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:24,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:24,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:24,612 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:24,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:24,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2022-11-20 09:29:24,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:24,631 INFO L203 nArgumentSynthesizer]: 108 stem disjuncts [2022-11-20 09:29:24,631 INFO L204 nArgumentSynthesizer]: 4 loop disjuncts [2022-11-20 09:29:24,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:25,091 INFO L401 nArgumentSynthesizer]: We have 904 Motzkin's Theorem applications. [2022-11-20 09:29:25,091 INFO L402 nArgumentSynthesizer]: A total of 8 supporting invariants were added. [2022-11-20 09:29:26,207 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-20 09:29:26,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2022-11-20 09:29:26,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:26,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:26,222 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:26,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2022-11-20 09:29:26,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-20 09:29:26,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-20 09:29:26,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-20 09:29:26,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-20 09:29:26,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-20 09:29:26,254 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-20 09:29:26,254 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-20 09:29:26,307 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-20 09:29:26,335 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-20 09:29:26,335 INFO L444 ModelExtractionUtils]: 39 out of 55 variables were initially zero. Simplification set additionally 12 variables to zero. [2022-11-20 09:29:26,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-20 09:29:26,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:26,339 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:26,344 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-20 09:29:26,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2022-11-20 09:29:26,379 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-11-20 09:29:26,380 INFO L513 LassoAnalysis]: Proved termination. [2022-11-20 09:29:26,380 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~i~0#1, v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_5) = -1*ULTIMATE.start_strcspn_~i~0#1 + 1*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_5 Supporting invariants [1*ULTIMATE.start_strcspn_~reject#1.offset >= 0] [2022-11-20 09:29:26,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:26,590 INFO L156 tatePredicateManager]: 41 out of 42 supporting invariants were superfluous and have been removed [2022-11-20 09:29:26,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:26,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:29:26,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:26,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:29:26,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:26,836 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-20 09:29:26,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:26,873 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 61 transitions. Complement of second has 6 states. [2022-11-20 09:29:26,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:29:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-20 09:29:26,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2022-11-20 09:29:26,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:26,875 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:29:26,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:26,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:29:26,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:29:27,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:27,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:27,119 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-20 09:29:27,119 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:27,159 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 55 states and 61 transitions. Complement of second has 6 states. [2022-11-20 09:29:27,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:29:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2022-11-20 09:29:27,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2022-11-20 09:29:27,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:27,162 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-20 09:29:27,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 09:29:27,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:27,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 09:29:27,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:29:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:29:27,455 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2022-11-20 09:29:27,455 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:27,496 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 80 states and 91 transitions. Complement of second has 5 states. [2022-11-20 09:29:27,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-20 09:29:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:27,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-11-20 09:29:27,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 4 letters. [2022-11-20 09:29:27,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:27,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 40 letters. Loop has 4 letters. [2022-11-20 09:29:27,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:27,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 36 letters. Loop has 8 letters. [2022-11-20 09:29:27,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-20 09:29:27,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2022-11-20 09:29:27,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:29:27,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 0 states and 0 transitions. [2022-11-20 09:29:27,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-20 09:29:27,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-20 09:29:27,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-20 09:29:27,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:27,504 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:27,504 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:27,504 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:29:27,504 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-20 09:29:27,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:29:27,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-20 09:29:27,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-20 09:29:27,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:29:27 BoogieIcfgContainer [2022-11-20 09:29:27,513 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-20 09:29:27,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:29:27,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:29:27,514 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:29:27,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:28:41" (3/4) ... [2022-11-20 09:29:27,518 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 09:29:27,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:29:27,518 INFO L158 Benchmark]: Toolchain (without parser) took 47235.28ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 140.0MB in the beginning and 102.6MB in the end (delta: 37.4MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. [2022-11-20 09:29:27,519 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:27,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.73ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 124.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 09:29:27,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.55ms. Allocated memory is still 180.4MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:27,520 INFO L158 Benchmark]: Boogie Preprocessor took 62.04ms. Allocated memory is still 180.4MB. Free memory was 122.2MB in the beginning and 120.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:29:27,520 INFO L158 Benchmark]: RCFGBuilder took 489.71ms. Allocated memory is still 180.4MB. Free memory was 120.6MB in the beginning and 109.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 09:29:27,521 INFO L158 Benchmark]: BuchiAutomizer took 46148.23ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 109.6MB in the beginning and 103.6MB in the end (delta: 6.0MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. [2022-11-20 09:29:27,521 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 262.1MB. Free memory was 103.6MB in the beginning and 102.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:29:27,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.73ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 124.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.55ms. Allocated memory is still 180.4MB. Free memory was 124.3MB in the beginning and 122.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.04ms. Allocated memory is still 180.4MB. Free memory was 122.2MB in the beginning and 120.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.71ms. Allocated memory is still 180.4MB. Free memory was 120.6MB in the beginning and 109.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 46148.23ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 109.6MB in the beginning and 103.6MB in the end (delta: 6.0MB). Peak memory consumption was 90.4MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 262.1MB. Free memory was 103.6MB in the beginning and 102.6MB in the end (delta: 1.0MB). There was no memory consumed. 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 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[in] + -1 * s and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[reject] + -1 * reject + -1 * i and consists of 3 locations. One nondeterministic module has affine ranking function -2 * i + 36893488147419103231 * unknown-#length-unknown[__builtin_alloca (in_len)] and consists of 8 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[reject] + -2 * i and consists of 9 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[reject] + -1 * i and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 15 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 46.0s and 8 iterations. TraceHistogramMax:6. Analysis of lassos took 40.4s. Construction of modules took 0.3s. Büchi inclusion checks took 5.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 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 [2, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 270 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 269 mSDsluCounter, 312 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 170 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 142 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital277 mio100 ax100 hnf100 lsp95 ukn83 mio100 lsp47 div158 bol100 ite100 ukn100 eq163 hnf92 smp70 dnf1288 smp67 tf100 neg89 sie125 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 1595ms VariablesStem: 6 VariablesLoop: 2 DisjunctsStem: 108 DisjunctsLoop: 4 SupportingInvariants: 8 MotzkinApplications: 904 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-20 09:29:27,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:27,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-20 09:29:27,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1cf87644-b5e1-43dc-bec6-2f57cfcdd3fd/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE