./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro --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 32bit --witnessprinter.graph.data.programhash 60396cce4fa0936fb91e88a54a287214045469c9d9b3d447954681e0a5aabbc0 --- 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-8393723 [2022-11-18 19:35:34,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:35:34,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:35:34,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:35:34,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:35:34,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:35:34,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:35:34,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:35:34,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:35:34,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:35:34,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:35:34,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:35:34,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:35:34,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:35:34,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:35:34,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:35:34,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:35:34,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:35:34,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:35:34,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:35:34,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:35:34,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:35:34,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:35:34,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:35:34,649 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:35:34,649 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:35:34,650 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:35:34,651 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:35:34,651 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:35:34,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:35:34,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:35:34,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:35:34,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:35:34,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:35:34,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:35:34,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:35:34,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:35:34,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:35:34,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:35:34,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:35:34,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:35:34,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:35:34,684 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:35:34,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:35:34,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:35:34,685 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:35:34,686 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:35:34,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:35:34,686 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:35:34,687 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:35:34,687 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:35:34,687 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:35:34,687 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:35:34,688 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:35:34,688 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:35:34,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:35:34,688 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:35:34,688 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:35:34,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:35:34,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:35:34,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:35:34,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:35:34,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:35:34,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:35:34,690 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:35:34,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:35:34,691 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:35:34,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:35:34,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:35:34,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:35:34,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:35:34,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:35:34,692 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:35:34,693 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:35:34,693 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_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60396cce4fa0936fb91e88a54a287214045469c9d9b3d447954681e0a5aabbc0 [2022-11-18 19:35:34,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:35:34,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:35:34,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:35:34,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:35:34,944 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:35:34,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2022-11-18 19:35:35,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/data/6a3b301dc/b5222a8d0d9543f199a2a5ca369e82bd/FLAG3b5c86805 [2022-11-18 19:35:35,602 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:35:35,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/sv-benchmarks/c/array-memsafety/rec_strlen-alloca-1.i [2022-11-18 19:35:35,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/data/6a3b301dc/b5222a8d0d9543f199a2a5ca369e82bd/FLAG3b5c86805 [2022-11-18 19:35:35,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/data/6a3b301dc/b5222a8d0d9543f199a2a5ca369e82bd [2022-11-18 19:35:35,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:35:35,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:35:35,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:35,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:35:35,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:35:35,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:35" (1/1) ... [2022-11-18 19:35:35,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2038a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:35, skipping insertion in model container [2022-11-18 19:35:35,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:35" (1/1) ... [2022-11-18 19:35:35,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:35:35,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:35:36,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:36,413 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:35:36,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:36,490 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:35:36,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36 WrapperNode [2022-11-18 19:35:36,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:36,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:36,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:35:36,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:35:36,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,530 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-11-18 19:35:36,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:36,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:35:36,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:35:36,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:35:36,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,555 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:35:36,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:35:36,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:35:36,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:35:36,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (1/1) ... [2022-11-18 19:35:36,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:36,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:36,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:36,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:35:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:35:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:35:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:35:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:35:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2022-11-18 19:35:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2022-11-18 19:35:36,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:35:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:35:36,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:35:36,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:35:36,947 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:35:36,954 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:35:36,954 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:35:36,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:36 BoogieIcfgContainer [2022-11-18 19:35:36,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:35:36,958 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:35:36,958 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:35:36,963 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:35:36,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:35:36,964 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:35:35" (1/3) ... [2022-11-18 19:35:36,965 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44b4ed51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:35:36, skipping insertion in model container [2022-11-18 19:35:36,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:35:36,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:36" (2/3) ... [2022-11-18 19:35:36,967 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44b4ed51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:35:36, skipping insertion in model container [2022-11-18 19:35:36,967 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:35:36,967 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:36" (3/3) ... [2022-11-18 19:35:36,969 INFO L332 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-1.i [2022-11-18 19:35:37,033 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:35:37,033 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:35:37,033 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:35:37,034 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:35:37,034 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:35:37,034 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:35:37,034 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:35:37,035 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:35:37,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:35:37,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:35:37,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:35:37,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:35:37,103 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:35:37,103 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 19:35:37,104 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:35:37,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:35:37,109 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2022-11-18 19:35:37,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:35:37,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:35:37,110 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:35:37,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-18 19:35:37,120 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; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 17#L522true assume !(main_~length1~0#1 < 1); 11#L522-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 9#L527-3true [2022-11-18 19:35:37,122 INFO L750 eck$LassoCheckResult]: Loop: 9#L527-3true assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet7#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet7#1; 12#L527-2true main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 9#L527-3true [2022-11-18 19:35:37,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:37,139 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2022-11-18 19:35:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:37,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365001119] [2022-11-18 19:35:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:37,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:37,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:37,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:37,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:37,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1507, now seen corresponding path program 1 times [2022-11-18 19:35:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:37,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364964508] [2022-11-18 19:35:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:37,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:37,356 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:37,384 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:37,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:37,386 INFO L85 PathProgramCache]: Analyzing trace with hash 889568455, now seen corresponding path program 1 times [2022-11-18 19:35:37,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:37,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794252986] [2022-11-18 19:35:37,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:37,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:37,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:37,498 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:37,907 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:35:37,908 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:35:37,908 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:35:37,908 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:35:37,909 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:35:37,909 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:37,909 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:35:37,909 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:35:37,909 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration1_Lasso [2022-11-18 19:35:37,910 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:35:37,910 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:35:37,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,953 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,958 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,969 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,972 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,979 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,983 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:37,993 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:38,674 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:35:38,680 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:35:38,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:38,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:38,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:38,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:38,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 19:35:38,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:38,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:38,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:38,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:38,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:38,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:38,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:38,725 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:38,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:38,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:38,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:38,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:38,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:38,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 19:35:38,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:38,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:38,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:38,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:38,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:38,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:38,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:38,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:38,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:38,809 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:38,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:38,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 19:35:38,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:38,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:38,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:38,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:38,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:38,837 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:38,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:38,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:38,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:38,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:38,856 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:38,868 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:38,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 19:35:38,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:38,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:38,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:38,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:38,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:38,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:38,884 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:38,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:38,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:38,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:38,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:38,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:38,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 19:35:38,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:38,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:38,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:38,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:38,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:38,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:38,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:38,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:38,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:38,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:38,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:38,962 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:38,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:38,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 19:35:38,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:38,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:38,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:38,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:38,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:38,985 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:38,986 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:38,995 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:39,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:39,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:39,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:39,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:39,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 19:35:39,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:39,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:39,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:39,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:39,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:39,028 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:39,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:39,042 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:39,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:39,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:39,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:39,054 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:39,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:39,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 19:35:39,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:39,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:39,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:39,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:39,085 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:39,085 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:39,102 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:39,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:39,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:39,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:39,117 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:39,121 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:39,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:39,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:39,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:39,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:39,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:39,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:39,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:39,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 19:35:39,147 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:39,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:39,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:39,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:39,157 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:39,164 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:39,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 19:35:39,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:39,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:39,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:39,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:39,196 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:39,196 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:39,218 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:35:39,250 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 19:35:39,250 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. [2022-11-18 19:35:39,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:39,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:39,256 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:39,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:35:39,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 19:35:39,294 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 19:35:39,294 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:35:39,294 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~length1~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-11-18 19:35:39,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:39,326 INFO L156 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-11-18 19:35:39,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:39,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:35:39,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:39,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:35:39,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:39,466 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 [2022-11-18 19:35:39,468 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 19:35:39,530 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 34 states and 43 transitions. Complement of second has 9 states. [2022-11-18 19:35:39,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-18 19:35:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-18 19:35:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2022-11-18 19:35:39,541 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2022-11-18 19:35:39,542 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:35:39,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 2 letters. [2022-11-18 19:35:39,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:35:39,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 4 letters. [2022-11-18 19:35:39,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:35:39,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 43 transitions. [2022-11-18 19:35:39,547 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:35:39,553 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 12 states and 15 transitions. [2022-11-18 19:35:39,554 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2022-11-18 19:35:39,554 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 19:35:39,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2022-11-18 19:35:39,555 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:39,556 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 19:35:39,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2022-11-18 19:35:39,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 19:35:39,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2022-11-18 19:35:39,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 19:35:39,593 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2022-11-18 19:35:39,593 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:35:39,593 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2022-11-18 19:35:39,596 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:35:39,596 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:35:39,596 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:35:39,597 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:39,597 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:35:39,598 INFO L748 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 111#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 121#L522 assume !(main_~length1~0#1 < 1); 112#L522-2 call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 113#L527-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 120#L527-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1); 118#L533 call main_#t~ret8#1 := strlen_rec(main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset);< 116#strlen_recENTRY [2022-11-18 19:35:39,598 INFO L750 eck$LassoCheckResult]: Loop: 116#strlen_recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 119#L515 assume !(0 == #t~mem2);havoc #t~mem2; 117#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 116#strlen_recENTRY [2022-11-18 19:35:39,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:39,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1806816568, now seen corresponding path program 1 times [2022-11-18 19:35:39,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:39,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086913097] [2022-11-18 19:35:39,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:39,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:39,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:39,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:39,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:39,663 INFO L85 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 1 times [2022-11-18 19:35:39,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:39,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425509846] [2022-11-18 19:35:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:39,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:39,691 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:39,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:39,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:39,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1952714549, now seen corresponding path program 1 times [2022-11-18 19:35:39,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:39,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662048530] [2022-11-18 19:35:39,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:39,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:40,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:40,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:40,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662048530] [2022-11-18 19:35:40,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662048530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:40,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:40,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:35:40,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096107672] [2022-11-18 19:35:40,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:40,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:40,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:35:40,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:35:40,256 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:40,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:40,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:40,431 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2022-11-18 19:35:40,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2022-11-18 19:35:40,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:35:40,434 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 13 states and 15 transitions. [2022-11-18 19:35:40,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2022-11-18 19:35:40,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2022-11-18 19:35:40,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2022-11-18 19:35:40,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:40,436 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-11-18 19:35:40,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2022-11-18 19:35:40,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2022-11-18 19:35:40,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-18 19:35:40,439 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-18 19:35:40,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:35:40,440 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-18 19:35:40,440 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:35:40,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2022-11-18 19:35:40,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:35:40,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:35:40,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:35:40,445 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:40,445 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:35:40,446 INFO L748 eck$LassoCheckResult]: Stem: 158#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~nondet7#1, main_#t~post6#1, main_~i~0#1, main_#t~ret8#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 169#L522 assume !(main_~length1~0#1 < 1); 160#L522-2 call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1 % 4294967296);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;main_~i~0#1 := 0; 161#L527-3 assume !!(main_~i~0#1 < main_~length1~0#1 - 1);call write~int(main_#t~nondet7#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + main_~i~0#1, 1);havoc main_#t~nondet7#1; 162#L527-2 main_#t~post6#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 163#L527-3 assume !(main_~i~0#1 < main_~length1~0#1 - 1); 168#L527-4 call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1); 165#L533 call main_#t~ret8#1 := strlen_rec(main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset);< 164#strlen_recENTRY [2022-11-18 19:35:40,446 INFO L750 eck$LassoCheckResult]: Loop: 164#strlen_recENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 167#L515 assume !(0 == #t~mem2);havoc #t~mem2; 166#L518 call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 164#strlen_recENTRY [2022-11-18 19:35:40,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:40,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1185641750, now seen corresponding path program 1 times [2022-11-18 19:35:40,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:40,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39648269] [2022-11-18 19:35:40,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:40,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:40,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:40,507 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:40,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:40,508 INFO L85 PathProgramCache]: Analyzing trace with hash 58722, now seen corresponding path program 2 times [2022-11-18 19:35:40,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:40,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744456259] [2022-11-18 19:35:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:40,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:40,513 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:40,527 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:40,528 INFO L85 PathProgramCache]: Analyzing trace with hash -357639123, now seen corresponding path program 1 times [2022-11-18 19:35:40,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:40,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151576765] [2022-11-18 19:35:40,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:40,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:40,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:35:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:35:40,585 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:35:41,091 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:35:41,091 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:35:41,091 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:35:41,091 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:35:41,092 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:35:41,092 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,092 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:35:41,092 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:35:41,092 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-1.i_Iteration3_Lasso [2022-11-18 19:35:41,092 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:35:41,092 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:35:41,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,098 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,101 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,115 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,117 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,120 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,123 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,125 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,262 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,266 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,272 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,275 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,279 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,292 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:35:41,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:35:41,578 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:35:41,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 19:35:41,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,619 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,633 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 19:35:41,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,669 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,679 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:41,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:41,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 19:35:41,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,728 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 19:35:41,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,779 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,802 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,802 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 19:35:41,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,838 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 19:35:41,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,893 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 19:35:41,902 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:41,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,941 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:41,956 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 [2022-11-18 19:35:41,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:41,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:41,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:41,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:41,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:41,970 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:41,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:41,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 19:35:41,983 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:41,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:41,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:41,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:41,993 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:42,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:42,015 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:35:42,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:42,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:42,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:42,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:35:42,016 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:35:42,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 19:35:42,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:42,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:42,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:42,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:42,041 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:42,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-18 19:35:42,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:42,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:42,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:42,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:42,063 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:42,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:42,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:35:42,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:42,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:42,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:42,090 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,095 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:35:42,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 19:35:42,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:35:42,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:35:42,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:35:42,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:35:42,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-18 19:35:42,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-18 19:35:42,138 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:35:42,180 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-11-18 19:35:42,180 INFO L444 ModelExtractionUtils]: 3 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-11-18 19:35:42,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:35:42,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:42,188 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:42,234 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:35:42,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 19:35:42,258 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-11-18 19:35:42,258 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:35:42,258 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(strlen_rec_#in~p.offset, v_rep(select #length strlen_rec_#in~p.base)_1) = -1*strlen_rec_#in~p.offset + 1*v_rep(select #length strlen_rec_#in~p.base)_1 Supporting invariants [] [2022-11-18 19:35:42,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-11-18 19:35:42,268 INFO L156 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2022-11-18 19:35:42,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:35:42,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:42,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:42,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-18 19:35:42,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:35:42,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:35:42,392 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 [2022-11-18 19:35:42,392 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,424 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 19 states and 21 transitions. Complement of second has 7 states. [2022-11-18 19:35:42,424 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 [2022-11-18 19:35:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:35:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2022-11-18 19:35:42,426 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2022-11-18 19:35:42,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:35:42,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2022-11-18 19:35:42,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:35:42,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 13 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-18 19:35:42,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:35:42,427 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 21 transitions. [2022-11-18 19:35:42,428 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:35:42,428 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2022-11-18 19:35:42,429 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 19:35:42,429 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 19:35:42,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 19:35:42,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:35:42,429 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:35:42,429 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:35:42,429 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:35:42,429 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:35:42,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:35:42,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:35:42,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 19:35:42,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:35:42 BoogieIcfgContainer [2022-11-18 19:35:42,438 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:35:42,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:35:42,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:35:42,439 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:35:42,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:36" (3/4) ... [2022-11-18 19:35:42,442 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:35:42,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:35:42,443 INFO L158 Benchmark]: Toolchain (without parser) took 6504.85ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 109.4MB in the beginning and 134.0MB in the end (delta: -24.6MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-18 19:35:42,444 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:42,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.70ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 113.8MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:35:42,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.69ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 112.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:42,446 INFO L158 Benchmark]: Boogie Preprocessor took 27.14ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:42,446 INFO L158 Benchmark]: RCFGBuilder took 397.90ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 100.2MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:35:42,447 INFO L158 Benchmark]: BuchiAutomizer took 5480.12ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 100.2MB in the beginning and 135.1MB in the end (delta: -34.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-11-18 19:35:42,447 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 186.6MB. Free memory was 135.1MB in the beginning and 134.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:35:42,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 45.2MB in the beginning and 45.2MB in the end (delta: 41.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.70ms. Allocated memory is still 142.6MB. Free memory was 109.4MB in the beginning and 113.8MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.69ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 112.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.14ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 397.90ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 100.2MB in the end (delta: 10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 5480.12ms. Allocated memory was 142.6MB in the beginning and 186.6MB in the end (delta: 44.0MB). Free memory was 100.2MB in the beginning and 135.1MB in the end (delta: -34.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 186.6MB. Free memory was 135.1MB in the beginning and 134.0MB 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[p] and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 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, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 25 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital95 mio100 ax118 hnf100 lsp78 ukn80 mio100 lsp54 div195 bol100 ite100 ukn100 eq152 hnf93 smp69 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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! [2022-11-18 19:35:42,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 19:35:42,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3d74659-21c8-4b07-9218-caab8628038e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE