./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8 --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 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- 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-e04fb08 [2022-11-16 11:12:16,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:12:16,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:12:16,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:12:16,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:12:16,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:12:16,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:12:16,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:12:16,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:12:16,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:12:16,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:12:16,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:12:16,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:12:16,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:12:16,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:12:16,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:12:16,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:12:16,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:12:16,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:12:16,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:12:16,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:12:16,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:12:16,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:12:16,345 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:12:16,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:12:16,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:12:16,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:12:16,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:12:16,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:12:16,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:12:16,359 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:12:16,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:12:16,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:12:16,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:12:16,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:12:16,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:12:16,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:12:16,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:12:16,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:12:16,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:12:16,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:12:16,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:12:16,407 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:12:16,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:12:16,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:12:16,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:12:16,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:12:16,423 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:12:16,423 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:12:16,423 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:12:16,424 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:12:16,424 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:12:16,425 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:12:16,426 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:12:16,426 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:12:16,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:12:16,426 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:12:16,427 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:12:16,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:12:16,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:12:16,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:12:16,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:12:16,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:12:16,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:12:16,429 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:12:16,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:12:16,429 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:12:16,430 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:12:16,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:12:16,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:12:16,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:12:16,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:12:16,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:12:16,432 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:12:16,433 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_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2022-11-16 11:12:16,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:12:16,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:12:16,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:12:16,779 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:12:16,780 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:12:16,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2022-11-16 11:12:16,853 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/data/82224c3a1/0662d40de6b84c259cde770fe45f1597/FLAG2914b1006 [2022-11-16 11:12:17,330 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:12:17,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2022-11-16 11:12:17,339 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/data/82224c3a1/0662d40de6b84c259cde770fe45f1597/FLAG2914b1006 [2022-11-16 11:12:17,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/data/82224c3a1/0662d40de6b84c259cde770fe45f1597 [2022-11-16 11:12:17,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:12:17,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:12:17,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:17,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:12:17,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:12:17,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:17" (1/1) ... [2022-11-16 11:12:17,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321812ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:17, skipping insertion in model container [2022-11-16 11:12:17,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:12:17" (1/1) ... [2022-11-16 11:12:17,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:12:17,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:12:17,957 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[755,768] [2022-11-16 11:12:18,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:18,012 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:12:18,024 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[755,768] [2022-11-16 11:12:18,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:12:18,070 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:12:18,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18 WrapperNode [2022-11-16 11:12:18,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:12:18,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:18,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:12:18,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:12:18,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,138 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 417 [2022-11-16 11:12:18,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:12:18,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:12:18,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:12:18,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:12:18,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,184 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:12:18,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:12:18,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:12:18,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:12:18,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (1/1) ... [2022-11-16 11:12:18,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:18,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:18,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:18,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:12:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:12:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:12:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:12:18,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:12:18,353 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:12:18,355 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:12:18,943 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:12:18,951 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:12:18,967 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-16 11:12:18,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:18 BoogieIcfgContainer [2022-11-16 11:12:18,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:12:18,970 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:12:18,970 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:12:18,975 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:12:18,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:12:18,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:12:17" (1/3) ... [2022-11-16 11:12:18,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b666eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:12:18, skipping insertion in model container [2022-11-16 11:12:18,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:12:18,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:12:18" (2/3) ... [2022-11-16 11:12:18,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46b666eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:12:18, skipping insertion in model container [2022-11-16 11:12:18,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:12:18,978 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:18" (3/3) ... [2022-11-16 11:12:18,979 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2022-11-16 11:12:19,042 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:12:19,043 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:12:19,043 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:12:19,043 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:12:19,043 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:12:19,043 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:12:19,043 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:12:19,044 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:12:19,047 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 121 states, 120 states have (on average 1.7083333333333333) internal successors, (205), 120 states have internal predecessors, (205), 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) [2022-11-16 11:12:19,074 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-16 11:12:19,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:12:19,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:12:19,080 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:12:19,080 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:12:19,081 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:12:19,081 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 121 states, 120 states have (on average 1.7083333333333333) internal successors, (205), 120 states have internal predecessors, (205), 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) [2022-11-16 11:12:19,090 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-16 11:12:19,091 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:12:19,091 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:12:19,091 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:12:19,091 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:12:19,100 INFO L748 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 60#L30true assume !(0 == base2flt_~m#1 % 4294967296); 112#L36true assume !(base2flt_~m#1 % 4294967296 < 16777216); 20#L58-2true [2022-11-16 11:12:19,100 INFO L750 eck$LassoCheckResult]: Loop: 20#L58-2true assume !false; 92#L59true assume base2flt_~m#1 % 4294967296 >= 33554432; 118#L60true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 20#L58-2true [2022-11-16 11:12:19,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:19,106 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-16 11:12:19,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:19,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573839309] [2022-11-16 11:12:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:19,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:19,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:19,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:12:19,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573839309] [2022-11-16 11:12:19,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573839309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:12:19,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:12:19,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:12:19,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452166235] [2022-11-16 11:12:19,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:12:19,438 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:12:19,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:19,440 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-16 11:12:19,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:19,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101994224] [2022-11-16 11:12:19,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:19,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:19,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:19,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:19,565 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:19,566 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:19,566 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:19,566 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:19,566 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:12:19,566 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:19,566 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:19,567 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:19,567 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2022-11-16 11:12:19,567 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:19,567 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:19,581 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:19,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:19,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:19,710 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:12:19,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:19,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:19,719 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:19,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:19,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:19,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:12:19,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:19,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:19,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:19,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:19,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:12:19,785 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:19,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:12:19,820 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:12:19,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:19,830 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:19,830 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:19,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:19,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:19,831 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:12:19,831 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:19,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:19,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:19,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration1_Loop [2022-11-16 11:12:19,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:19,832 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:19,833 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:19,843 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:19,975 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:19,981 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:12:19,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:19,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:19,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:20,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:12:20,001 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 [2022-11-16 11:12:20,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:20,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:20,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:20,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:20,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:20,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:20,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:20,033 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:12:20,042 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:12:20,043 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:12:20,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:20,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:20,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:20,059 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:12:20,060 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:12:20,060 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:12:20,061 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:12:20,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:12:20,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:20,079 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:12:20,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:20,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:12:20,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:20,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:12:20,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:20,220 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:12:20,225 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 121 states, 120 states have (on average 1.7083333333333333) internal successors, (205), 120 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 11:12:20,390 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 121 states, 120 states have (on average 1.7083333333333333) internal successors, (205), 120 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 367 states and 612 transitions. Complement of second has 6 states. [2022-11-16 11:12:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:12:20,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 11:12:20,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2022-11-16 11:12:20,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 400 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-16 11:12:20,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:20,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 400 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:12:20,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:20,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 400 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-16 11:12:20,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:20,409 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 612 transitions. [2022-11-16 11:12:20,439 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-16 11:12:20,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 73 states and 114 transitions. [2022-11-16 11:12:20,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2022-11-16 11:12:20,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-11-16 11:12:20,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 114 transitions. [2022-11-16 11:12:20,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:12:20,450 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 114 transitions. [2022-11-16 11:12:20,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 114 transitions. [2022-11-16 11:12:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 58. [2022-11-16 11:12:20,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 58 states have (on average 1.6206896551724137) internal successors, (94), 57 states have internal predecessors, (94), 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) [2022-11-16 11:12:20,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 94 transitions. [2022-11-16 11:12:20,487 INFO L240 hiAutomatonCegarLoop]: Abstraction has 58 states and 94 transitions. [2022-11-16 11:12:20,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:12:20,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:12:20,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:12:20,492 INFO L87 Difference]: Start difference. First operand 58 states and 94 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-16 11:12:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:12:20,570 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2022-11-16 11:12:20,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 43 transitions. [2022-11-16 11:12:20,571 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:12:20,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 32 states and 43 transitions. [2022-11-16 11:12:20,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2022-11-16 11:12:20,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-11-16 11:12:20,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2022-11-16 11:12:20,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:20,573 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 43 transitions. [2022-11-16 11:12:20,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2022-11-16 11:12:20,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-11-16 11:12:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 28 states have internal predecessors, (40), 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) [2022-11-16 11:12:20,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2022-11-16 11:12:20,578 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 40 transitions. [2022-11-16 11:12:20,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:12:20,581 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 40 transitions. [2022-11-16 11:12:20,582 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:12:20,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 40 transitions. [2022-11-16 11:12:20,582 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:12:20,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:12:20,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:12:20,583 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:20,583 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:12:20,584 INFO L748 eck$LassoCheckResult]: Stem: 643#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 632#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 626#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 627#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 633#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 646#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 639#L36-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 631#L58-5 [2022-11-16 11:12:20,584 INFO L750 eck$LassoCheckResult]: Loop: 631#L58-5 assume !false; 636#L59-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 629#L60-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 631#L58-5 [2022-11-16 11:12:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305057, now seen corresponding path program 1 times [2022-11-16 11:12:20,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:20,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060966316] [2022-11-16 11:12:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:20,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:20,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:20,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:20,609 INFO L85 PathProgramCache]: Analyzing trace with hash 159017, now seen corresponding path program 1 times [2022-11-16 11:12:20,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:20,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946395584] [2022-11-16 11:12:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:20,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:20,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:20,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:20,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:20,624 INFO L85 PathProgramCache]: Analyzing trace with hash -284940343, now seen corresponding path program 1 times [2022-11-16 11:12:20,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:20,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141939301] [2022-11-16 11:12:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:20,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:20,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:20,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:20,682 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:20,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:20,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:20,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:20,683 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:12:20,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:20,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:20,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:20,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2022-11-16 11:12:20,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:20,683 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:20,684 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:20,691 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:20,789 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:20,789 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:12:20,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:20,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:20,791 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:20,795 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:20,795 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:20,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:12:20,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:12:20,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:12:20,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:20,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:20,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:20,829 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:20,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:12:20,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:20,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:20,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:20,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:20,860 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:20,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:12:20,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:12:20,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:20,903 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:12:20,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:20,912 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:20,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:20,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:20,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:20,913 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:12:20,913 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:20,913 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:20,913 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:20,913 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration2_Loop [2022-11-16 11:12:20,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:20,913 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:20,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:20,926 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:21,054 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:21,054 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:12:21,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,056 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,092 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 [2022-11-16 11:12:21,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:12:21,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:21,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:21,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:21,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:21,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:21,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:21,111 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:21,127 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:12:21,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:21,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,138 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,150 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 [2022-11-16 11:12:21,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:12:21,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:21,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:21,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:21,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:21,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:21,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:21,170 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:21,173 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:12:21,175 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:12:21,176 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:12:21,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,179 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,200 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:12:21,200 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:12:21,201 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:12:21,201 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:12:21,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:12:21,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-16 11:12:21,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-11-16 11:12:21,209 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:12:21,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:21,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:12:21,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:21,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:21,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:12:21,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:21,334 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:12:21,335 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 40 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:21,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 40 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 78 transitions. Complement of second has 5 states. [2022-11-16 11:12:21,387 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 [2022-11-16 11:12:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2022-11-16 11:12:21,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:12:21,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:21,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:12:21,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:21,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 49 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-16 11:12:21,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:21,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 78 transitions. [2022-11-16 11:12:21,391 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:12:21,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 48 states and 65 transitions. [2022-11-16 11:12:21,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2022-11-16 11:12:21,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-11-16 11:12:21,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 65 transitions. [2022-11-16 11:12:21,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:12:21,393 INFO L218 hiAutomatonCegarLoop]: Abstraction has 48 states and 65 transitions. [2022-11-16 11:12:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 65 transitions. [2022-11-16 11:12:21,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 32. [2022-11-16 11:12:21,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.375) internal successors, (44), 31 states have internal predecessors, (44), 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) [2022-11-16 11:12:21,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2022-11-16 11:12:21,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 44 transitions. [2022-11-16 11:12:21,396 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2022-11-16 11:12:21,396 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:12:21,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2022-11-16 11:12:21,397 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-16 11:12:21,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:12:21,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:12:21,398 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:21,398 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:12:21,398 INFO L748 eck$LassoCheckResult]: Stem: 780#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 767#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 760#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 761#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 770#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 783#L30-1 assume !(0 == base2flt_~m#1 % 4294967296); 777#L36-1 assume base2flt_~m#1 % 4294967296 < 16777216; 758#L48-3 [2022-11-16 11:12:21,399 INFO L750 eck$LassoCheckResult]: Loop: 758#L48-3 assume !false; 773#L39-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 757#L48-2 assume base2flt_~m#1 % 4294967296 < 16777216; 758#L48-3 [2022-11-16 11:12:21,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:21,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305031, now seen corresponding path program 1 times [2022-11-16 11:12:21,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:21,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744352206] [2022-11-16 11:12:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:21,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:21,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:21,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:21,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:21,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash 133258, now seen corresponding path program 1 times [2022-11-16 11:12:21,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:21,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425698584] [2022-11-16 11:12:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:21,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:21,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:21,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:21,433 INFO L85 PathProgramCache]: Analyzing trace with hash -285740668, now seen corresponding path program 1 times [2022-11-16 11:12:21,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:21,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648907184] [2022-11-16 11:12:21,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:21,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:21,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:21,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:21,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:21,498 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:21,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:21,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:21,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:21,498 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:12:21,499 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:21,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:21,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2022-11-16 11:12:21,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:21,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:21,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:21,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:21,593 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:21,594 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:12:21,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,595 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:21,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:21,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:12:21,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:21,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,649 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:12:21,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:21,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:12:21,707 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:12:21,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:21,717 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:21,718 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:21,718 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:21,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:21,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:12:21,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:21,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:21,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration3_Loop [2022-11-16 11:12:21,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:21,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:21,719 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:21,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:21,807 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:21,808 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:12:21,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,812 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,821 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 [2022-11-16 11:12:21,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:12:21,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:21,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:21,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:21,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:21,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:21,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:21,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:21,851 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:12:21,864 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:12:21,864 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:12:21,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:21,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:21,866 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:21,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:12:21,871 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:12:21,871 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:12:21,872 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:12:21,872 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-16 11:12:21,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:21,876 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:12:21,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:21,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:12:21,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:21,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:12:21,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:22,016 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 [2022-11-16 11:12:22,017 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 44 transitions. cyclomatic complexity: 16 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:22,045 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 44 transitions. cyclomatic complexity: 16. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 60 states and 83 transitions. Complement of second has 5 states. [2022-11-16 11:12:22,045 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 [2022-11-16 11:12:22,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:22,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 50 transitions. [2022-11-16 11:12:22,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:12:22,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:22,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:12:22,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:22,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 50 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-16 11:12:22,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:22,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 60 states and 83 transitions. [2022-11-16 11:12:22,051 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:12:22,054 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 60 states to 52 states and 70 transitions. [2022-11-16 11:12:22,054 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-16 11:12:22,056 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-16 11:12:22,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 70 transitions. [2022-11-16 11:12:22,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:12:22,057 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 70 transitions. [2022-11-16 11:12:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 70 transitions. [2022-11-16 11:12:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 35. [2022-11-16 11:12:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 34 states have internal predecessors, (48), 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) [2022-11-16 11:12:22,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2022-11-16 11:12:22,065 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-16 11:12:22,065 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 48 transitions. [2022-11-16 11:12:22,065 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:12:22,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 48 transitions. [2022-11-16 11:12:22,066 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-16 11:12:22,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:12:22,067 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:12:22,070 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:22,070 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:12:22,071 INFO L748 eck$LassoCheckResult]: Stem: 925#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 910#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 903#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 904#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 911#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 928#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 907#L80-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 905#L81-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 897#L30-2 assume !(0 == base2flt_~m#1 % 4294967296); 898#L36-2 assume base2flt_~m#1 % 4294967296 < 16777216; 912#L48-5 [2022-11-16 11:12:22,071 INFO L750 eck$LassoCheckResult]: Loop: 912#L48-5 assume !false; 929#L39-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 924#L48-4 assume base2flt_~m#1 % 4294967296 < 16777216; 912#L48-5 [2022-11-16 11:12:22,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,072 INFO L85 PathProgramCache]: Analyzing trace with hash -285285893, now seen corresponding path program 1 times [2022-11-16 11:12:22,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:22,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686105372] [2022-11-16 11:12:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:22,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,117 INFO L85 PathProgramCache]: Analyzing trace with hash 217663, now seen corresponding path program 1 times [2022-11-16 11:12:22,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:22,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99582277] [2022-11-16 11:12:22,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:22,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:22,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,133 INFO L85 PathProgramCache]: Analyzing trace with hash 788428293, now seen corresponding path program 1 times [2022-11-16 11:12:22,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:22,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047627371] [2022-11-16 11:12:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:22,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,158 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:22,196 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:22,196 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:22,196 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:22,196 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:22,196 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:12:22,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:22,197 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:22,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2022-11-16 11:12:22,197 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:22,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:22,198 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:22,205 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:22,273 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:22,273 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:12:22,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,275 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:12:22,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:22,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:22,310 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:12:22,310 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=0} Honda state: {ULTIMATE.start_base2flt_~m#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:12:22,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:22,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,320 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:12:22,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:22,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:22,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:22,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,360 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,372 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:12:22,372 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:22,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:12:22,407 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:12:22,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:22,412 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:22,412 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:22,412 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:22,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:22,412 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:12:22,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:22,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:22,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration4_Loop [2022-11-16 11:12:22,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:22,413 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:22,414 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:22,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:22,484 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:22,485 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:12:22,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,486 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:12:22,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-16 11:12:22,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:22,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:22,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:22,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:22,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:22,508 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:22,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:22,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:12:22,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:22,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,536 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,549 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 [2022-11-16 11:12:22,562 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:22,562 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:22,562 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:22,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:22,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:22,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:22,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:22,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:12:22,583 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:12:22,587 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:12:22,588 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:12:22,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,595 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:12:22,601 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:12:22,601 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:12:22,601 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-16 11:12:22,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:12:22,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:22,611 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:12:22,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:12:22,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:22,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:12:22,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:22,688 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 [2022-11-16 11:12:22,688 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 17 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:22,695 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 48 transitions. cyclomatic complexity: 17. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 39 states and 52 transitions. Complement of second has 4 states. [2022-11-16 11:12:22,695 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 [2022-11-16 11:12:22,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-11-16 11:12:22,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:12:22,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:22,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:12:22,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:22,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 40 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-16 11:12:22,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:22,698 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 52 transitions. [2022-11-16 11:12:22,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:12:22,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 32 states and 44 transitions. [2022-11-16 11:12:22,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-11-16 11:12:22,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2022-11-16 11:12:22,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 44 transitions. [2022-11-16 11:12:22,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:12:22,700 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 44 transitions. [2022-11-16 11:12:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 44 transitions. [2022-11-16 11:12:22,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-16 11:12:22,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 32 states have (on average 1.375) internal successors, (44), 31 states have internal predecessors, (44), 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) [2022-11-16 11:12:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2022-11-16 11:12:22,702 INFO L240 hiAutomatonCegarLoop]: Abstraction has 32 states and 44 transitions. [2022-11-16 11:12:22,702 INFO L428 stractBuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2022-11-16 11:12:22,702 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:12:22,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2022-11-16 11:12:22,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:12:22,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:12:22,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:12:22,703 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:12:22,703 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:12:22,704 INFO L748 eck$LassoCheckResult]: Stem: 1055#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3); 1042#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_#t~ret10#1, main_#t~ret11#1, main_#t~ret12#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_add1~0#1, main_~r_add2~0#1, main_~zero~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~__retres14~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~ea~2#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~eb~2#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~r_add1~0#1;havoc main_~r_add2~0#1;havoc main_~zero~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~__retres14~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1035#L30 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1036#L80 base2flt_#res#1 := base2flt_~__retres4~0#1; 1043#L81 main_#t~ret8#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~ma~2#1, main_~ea~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1058#L30-1 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1039#L80-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1037#L81-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := main_~mb~2#1, main_~eb~2#1;havoc base2flt_#res#1;havoc base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1029#L30-2 assume !(0 == base2flt_~m#1 % 4294967296); 1030#L36-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1044#L58-8 [2022-11-16 11:12:22,704 INFO L750 eck$LassoCheckResult]: Loop: 1044#L58-8 assume !false; 1056#L59-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1057#L60-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1044#L58-8 [2022-11-16 11:12:22,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,704 INFO L85 PathProgramCache]: Analyzing trace with hash -285285867, now seen corresponding path program 1 times [2022-11-16 11:12:22,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:22,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412119228] [2022-11-16 11:12:22,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:22,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,713 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:22,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,722 INFO L85 PathProgramCache]: Analyzing trace with hash 243422, now seen corresponding path program 1 times [2022-11-16 11:12:22,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:22,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094340391] [2022-11-16 11:12:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:22,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,728 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:22,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash 789228618, now seen corresponding path program 1 times [2022-11-16 11:12:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:12:22,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909540858] [2022-11-16 11:12:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:12:22,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:12:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:12:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:12:22,772 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:12:22,805 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:22,805 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:22,805 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:22,806 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:22,806 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:12:22,806 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,806 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:22,806 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:22,806 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2022-11-16 11:12:22,806 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:22,806 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:22,807 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:22,814 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:22,903 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:22,903 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:12:22,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,905 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:22,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:22,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-16 11:12:22,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:12:22,951 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m#1=-1} Honda state: {ULTIMATE.start_base2flt_~m#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:12:22,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:22,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:22,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:22,961 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:22,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:12:22,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:22,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 11:12:23,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:23,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:23,008 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:23,012 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:12:23,012 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:12:23,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:12:23,055 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:12:23,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,059 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:12:23,059 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:12:23,059 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:12:23,060 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:12:23,060 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:12:23,060 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:23,060 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:12:23,060 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:12:23,060 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-2a.c.cil.c_Iteration5_Loop [2022-11-16 11:12:23,060 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:12:23,060 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:12:23,061 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:23,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:12:23,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:12:23,182 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:12:23,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:23,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:23,187 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:23,192 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 [2022-11-16 11:12:23,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:23,205 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:23,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:23,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:23,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:23,207 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:23,207 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:23,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:12:23,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:12:23,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:23,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:23,221 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:23,227 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 [2022-11-16 11:12:23,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:12:23,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:12:23,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:12:23,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:12:23,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:12:23,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:12:23,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:12:23,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:12:23,263 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:12:23,265 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:12:23,265 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:12:23,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:12:23,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:12:23,267 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:12:23,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:12:23,272 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:12:23,272 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:12:23,272 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-16 11:12:23,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:12:23,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,276 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:12:23,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:12:23,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:23,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:12:23,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:12:23,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:12:23,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:12:23,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:12:23,361 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:12:23,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 44 transitions. cyclomatic complexity: 15 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:23,371 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 44 transitions. cyclomatic complexity: 15. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 48 transitions. Complement of second has 4 states. [2022-11-16 11:12:23,372 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 [2022-11-16 11:12:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:12:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-11-16 11:12:23,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:12:23,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:23,374 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:12:23,374 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:23,375 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 35 transitions. Stem has 10 letters. Loop has 6 letters. [2022-11-16 11:12:23,375 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:12:23,375 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2022-11-16 11:12:23,375 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:12:23,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2022-11-16 11:12:23,376 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:12:23,376 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:12:23,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:12:23,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:12:23,376 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:12:23,376 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:12:23,376 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:12:23,377 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 11:12:23,377 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:12:23,377 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:12:23,377 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:12:23,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:12:23 BoogieIcfgContainer [2022-11-16 11:12:23,389 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:12:23,391 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:12:23,391 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:12:23,391 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:12:23,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:12:18" (3/4) ... [2022-11-16 11:12:23,394 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:12:23,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:12:23,395 INFO L158 Benchmark]: Toolchain (without parser) took 5675.91ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 84.8MB in the beginning and 136.4MB in the end (delta: -51.6MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-11-16 11:12:23,395 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:23,396 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.72ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 98.1MB in the end (delta: -13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 11:12:23,396 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.37ms. Allocated memory is still 127.9MB. Free memory was 98.1MB in the beginning and 95.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:12:23,397 INFO L158 Benchmark]: Boogie Preprocessor took 34.81ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 92.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:12:23,397 INFO L158 Benchmark]: RCFGBuilder took 778.47ms. Allocated memory is still 127.9MB. Free memory was 92.9MB in the beginning and 64.7MB in the end (delta: 28.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 11:12:23,398 INFO L158 Benchmark]: BuchiAutomizer took 4420.44ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 64.7MB in the beginning and 136.4MB in the end (delta: -71.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:23,398 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 182.5MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:12:23,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 127.9MB. Free memory is still 101.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.72ms. Allocated memory is still 127.9MB. Free memory was 84.6MB in the beginning and 98.1MB in the end (delta: -13.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.37ms. Allocated memory is still 127.9MB. Free memory was 98.1MB in the beginning and 95.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.81ms. Allocated memory is still 127.9MB. Free memory was 95.3MB in the beginning and 92.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 778.47ms. Allocated memory is still 127.9MB. Free memory was 92.9MB in the beginning and 64.7MB in the end (delta: 28.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4420.44ms. Allocated memory was 127.9MB in the beginning and 182.5MB in the end (delta: 54.5MB). Free memory was 64.7MB in the beginning and 136.4MB in the end (delta: -71.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 182.5MB. Free memory is still 136.4MB. 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 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 51 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 359 mSDsluCounter, 426 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 386 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div570 bol100 ite100 ukn100 eq132 hnf96 smp42 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 75ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:12:23,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:12:23,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de40c2a2-c72b-4eb3-9e7f-c55bffb0a4c2/bin/uautomizer-tPACEb0tL8/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