./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/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_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/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_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- 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 11:49:55,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:49:55,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:49:55,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:49:55,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:49:55,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:49:55,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:49:55,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:49:55,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:49:55,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:49:55,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:49:55,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:49:55,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:49:55,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:49:55,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:49:55,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:49:55,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:49:55,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:49:55,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:49:55,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:49:55,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:49:55,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:49:55,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:49:55,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:49:55,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:49:55,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:49:55,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:49:55,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:49:55,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:49:55,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:49:55,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:49:55,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:49:55,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:49:55,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:49:55,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:49:55,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:49:55,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:49:55,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:49:55,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:49:55,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:49:55,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:49:55,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-16 11:49:55,550 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:49:55,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:49:55,551 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:49:55,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:49:55,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:49:55,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:49:55,554 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:49:55,555 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:49:55,555 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:49:55,555 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:49:55,556 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:49:55,556 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:49:55,557 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:49:55,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:49:55,558 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:49:55,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:49:55,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:49:55,571 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:49:55,571 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:49:55,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:49:55,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:49:55,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:49:55,573 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:49:55,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:49:55,574 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:49:55,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:49:55,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:49:55,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:49:55,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:49:55,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:49:55,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:49:55,578 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:49:55,578 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_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2022-11-16 11:49:55,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:49:55,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:49:55,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:49:55,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:49:55,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:49:55,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-11-16 11:49:56,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/data/aca476403/d7c998dd836646748b1e0fa7d5c35264/FLAG11691c396 [2022-11-16 11:49:56,715 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:49:56,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-11-16 11:49:56,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/data/aca476403/d7c998dd836646748b1e0fa7d5c35264/FLAG11691c396 [2022-11-16 11:49:57,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/data/aca476403/d7c998dd836646748b1e0fa7d5c35264 [2022-11-16 11:49:57,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:49:57,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:49:57,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:49:57,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:49:57,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:49:57,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efddcc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57, skipping insertion in model container [2022-11-16 11:49:57,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:49:57,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:49:57,428 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_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-11-16 11:49:57,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:49:57,541 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:49:57,576 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_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-11-16 11:49:57,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:49:57,669 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:49:57,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57 WrapperNode [2022-11-16 11:49:57,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:49:57,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:49:57,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:49:57,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:49:57,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,753 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 374 [2022-11-16 11:49:57,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:49:57,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:49:57,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:49:57,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:49:57,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:49:57,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:49:57,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:49:57,866 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:49:57,867 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (1/1) ... [2022-11-16 11:49:57,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:57,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:57,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:57,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:49:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:49:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:49:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:49:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:49:58,103 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:49:58,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:49:58,864 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:49:58,873 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:49:58,874 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-16 11:49:58,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:58 BoogieIcfgContainer [2022-11-16 11:49:58,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:49:58,878 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:49:58,894 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:49:58,900 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:49:58,901 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:49:58,902 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:49:57" (1/3) ... [2022-11-16 11:49:58,903 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4841926c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:49:58, skipping insertion in model container [2022-11-16 11:49:58,903 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:49:58,904 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:49:57" (2/3) ... [2022-11-16 11:49:58,904 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4841926c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:49:58, skipping insertion in model container [2022-11-16 11:49:58,905 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:49:58,905 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:58" (3/3) ... [2022-11-16 11:49:58,907 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2022-11-16 11:49:58,994 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:49:58,994 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:49:58,994 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:49:58,995 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:49:58,995 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:49:58,995 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:49:58,995 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:49:58,996 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:49:59,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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 11:49:59,036 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-16 11:49:59,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:49:59,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:49:59,044 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:49:59,046 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:49:59,046 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:49:59,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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 11:49:59,058 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-16 11:49:59,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:49:59,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:49:59,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-16 11:49:59,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:49:59,070 INFO L748 eck$LassoCheckResult]: Stem: 88#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(22, 2);call #Ultimate.allocInit(12, 3); 29#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 65#L29true assume !(0 == base2flt_~m#1 % 4294967296); 87#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 43#L57-2true [2022-11-16 11:49:59,071 INFO L750 eck$LassoCheckResult]: Loop: 43#L57-2true assume !false; 28#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 77#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 43#L57-2true [2022-11-16 11:49:59,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-16 11:49:59,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:59,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663551196] [2022-11-16 11:49:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:59,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:49:59,486 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 11:49:59,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:49:59,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663551196] [2022-11-16 11:49:59,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663551196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:49:59,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:49:59,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:49:59,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539371777] [2022-11-16 11:49:59,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:49:59,498 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:49:59,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:49:59,500 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-16 11:49:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:49:59,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575194447] [2022-11-16 11:49:59,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:49:59,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:49:59,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:59,525 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:49:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:49:59,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:49:59,665 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:49:59,678 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:49:59,678 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:49:59,678 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:49:59,678 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:49:59,679 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:59,679 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:49:59,679 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:49:59,679 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2022-11-16 11:49:59,680 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:49:59,680 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:49:59,717 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 11:49:59,757 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 11:49:59,939 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:49:59,940 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:49:59,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:49:59,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:49:59,948 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:49:59,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:49:59,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:49:59,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:00,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:00,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:00,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:00,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:00,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:00,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:00,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:50:00,075 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:00,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:00,086 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:00,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:00,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:00,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:00,087 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:00,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:00,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:00,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:00,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2022-11-16 11:50:00,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:00,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:00,090 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 11:50:00,114 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 11:50:00,262 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:00,268 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:00,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:00,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:00,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:00,281 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 11:50:00,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:50:00,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:00,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:00,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:00,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:00,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:00,306 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:00,307 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:00,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:00,326 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:00,327 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:00,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:00,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:00,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:00,346 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:00,346 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:00,347 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:00,348 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 11:50:00,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:50:00,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:00,361 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:00,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:00,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:00,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:00,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:00,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:00,482 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 11:50:00,548 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 11:50:00,552 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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 11:50:00,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 104 states, 103 states have (on average 1.7864077669902914) internal successors, (184), 103 states have internal predecessors, (184), 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 309 states and 542 transitions. Complement of second has 6 states. [2022-11-16 11:50:00,669 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 11:50:00,675 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 11:50:00,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 358 transitions. [2022-11-16 11:50:00,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-16 11:50:00,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:00,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:50:00,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:00,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 358 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-16 11:50:00,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:00,681 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 309 states and 542 transitions. [2022-11-16 11:50:00,692 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-16 11:50:00,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 309 states to 103 states and 168 transitions. [2022-11-16 11:50:00,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2022-11-16 11:50:00,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 100 [2022-11-16 11:50:00,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 168 transitions. [2022-11-16 11:50:00,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:00,702 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 168 transitions. [2022-11-16 11:50:00,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 168 transitions. [2022-11-16 11:50:00,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 88. [2022-11-16 11:50:00,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 88 states have (on average 1.6818181818181819) internal successors, (148), 87 states have internal predecessors, (148), 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 11:50:00,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 148 transitions. [2022-11-16 11:50:00,750 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 148 transitions. [2022-11-16 11:50:00,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:50:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:50:00,755 INFO L87 Difference]: Start difference. First operand 88 states and 148 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 11:50:00,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:00,907 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-11-16 11:50:00,907 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 72 transitions. [2022-11-16 11:50:00,909 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-16 11:50:00,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 72 transitions. [2022-11-16 11:50:00,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-16 11:50:00,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2022-11-16 11:50:00,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 72 transitions. [2022-11-16 11:50:00,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:50:00,915 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 72 transitions. [2022-11-16 11:50:00,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 72 transitions. [2022-11-16 11:50:00,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-11-16 11:50:00,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 44 states have internal predecessors, (66), 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 11:50:00,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2022-11-16 11:50:00,933 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-16 11:50:00,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:50:00,934 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-16 11:50:00,934 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:50:00,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2022-11-16 11:50:00,936 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-16 11:50:00,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:00,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:00,936 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:00,937 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:50:00,937 INFO L748 eck$LassoCheckResult]: Stem: 633#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(22, 2);call #Ultimate.allocInit(12, 3); 603#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 604#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 636#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 608#L80 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 := 1, 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; 609#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 610#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 611#L57-5 [2022-11-16 11:50:00,937 INFO L750 eck$LassoCheckResult]: Loop: 611#L57-5 assume !false; 613#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 614#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 611#L57-5 [2022-11-16 11:50:00,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:00,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305057, now seen corresponding path program 1 times [2022-11-16 11:50:00,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:00,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091583135] [2022-11-16 11:50:00,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:00,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:00,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:01,112 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 11:50:01,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:01,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091583135] [2022-11-16 11:50:01,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091583135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:01,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:01,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:50:01,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783791872] [2022-11-16 11:50:01,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:01,115 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:50:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash 159017, now seen corresponding path program 1 times [2022-11-16 11:50:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715435992] [2022-11-16 11:50:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:01,124 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:01,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:01,173 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:01,174 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:01,174 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:01,174 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:01,174 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:01,174 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,174 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:01,174 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:01,175 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2022-11-16 11:50:01,175 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:01,175 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:01,176 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 11:50:01,187 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 11:50:01,260 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Exception during sending of exit command (exit): Broken pipe [2022-11-16 11:50:01,282 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-11-16 11:50:01,362 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:01,363 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:01,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:01,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:01,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:01,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:01,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:50:01,424 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:50:01,424 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 11:50:01,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:01,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:01,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:01,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:01,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:01,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:50:01,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:01,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:01,488 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:01,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:01,502 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:01,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:50:01,546 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:01,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:01,557 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:01,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:01,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:01,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:01,558 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:01,558 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,558 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:01,558 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:01,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2022-11-16 11:50:01,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:01,559 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:01,560 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 11:50:01,572 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 11:50:01,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:01,717 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:01,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:01,719 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:01,732 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 11:50:01,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:50:01,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:01,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:01,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:01,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:01,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:01,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:01,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:01,763 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:50:01,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:01,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:01,772 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:01,782 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 11:50:01,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:50:01,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:01,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:01,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:01,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:01,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:01,803 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:01,804 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:01,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:01,817 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:01,817 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:01,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:01,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:01,819 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:01,837 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:01,837 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:01,837 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:01,837 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 11:50:01,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:50:01,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:01,849 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:01,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:01,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:01,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:01,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:01,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:01,944 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 11:50:01,945 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 11:50:01,945 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27 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 11:50:01,977 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 66 transitions. cyclomatic complexity: 27. 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 88 states and 130 transitions. Complement of second has 5 states. [2022-11-16 11:50:01,978 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 11:50:01,979 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 11:50:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-11-16 11:50:01,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:50:01,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:01,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:50:01,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:01,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-16 11:50:01,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:01,981 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 130 transitions. [2022-11-16 11:50:01,983 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-16 11:50:01,984 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 80 states and 117 transitions. [2022-11-16 11:50:01,984 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2022-11-16 11:50:01,985 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-16 11:50:01,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 117 transitions. [2022-11-16 11:50:01,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:01,985 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 117 transitions. [2022-11-16 11:50:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 117 transitions. [2022-11-16 11:50:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 48. [2022-11-16 11:50:01,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 47 states have internal predecessors, (70), 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 11:50:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2022-11-16 11:50:01,989 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-16 11:50:01,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:01,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:50:01,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:50:01,991 INFO L87 Difference]: Start difference. First operand 48 states and 70 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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 11:50:02,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:02,075 INFO L93 Difference]: Finished difference Result 46 states and 64 transitions. [2022-11-16 11:50:02,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 64 transitions. [2022-11-16 11:50:02,076 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:50:02,081 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 64 transitions. [2022-11-16 11:50:02,082 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2022-11-16 11:50:02,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-16 11:50:02,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-16 11:50:02,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:50:02,086 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-16 11:50:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-16 11:50:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-16 11:50:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 41 states have internal predecessors, (59), 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 11:50:02,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2022-11-16 11:50:02,101 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-16 11:50:02,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:50:02,102 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-16 11:50:02,104 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-16 11:50:02,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2022-11-16 11:50:02,107 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:50:02,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:02,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:02,111 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:02,111 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:50:02,112 INFO L748 eck$LassoCheckResult]: Stem: 906#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(22, 2);call #Ultimate.allocInit(12, 3); 878#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 879#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 908#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 883#L80 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 := 1, 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; 884#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 885#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 886#L47-3 [2022-11-16 11:50:02,112 INFO L750 eck$LassoCheckResult]: Loop: 886#L47-3 assume !false; 905#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 897#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 886#L47-3 [2022-11-16 11:50:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305031, now seen corresponding path program 1 times [2022-11-16 11:50:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:02,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013322432] [2022-11-16 11:50:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:02,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:02,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:02,158 INFO L85 PathProgramCache]: Analyzing trace with hash 133258, now seen corresponding path program 1 times [2022-11-16 11:50:02,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:02,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952526826] [2022-11-16 11:50:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:02,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:02,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:02,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:02,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:02,183 INFO L85 PathProgramCache]: Analyzing trace with hash -285740668, now seen corresponding path program 1 times [2022-11-16 11:50:02,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:02,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450789548] [2022-11-16 11:50:02,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:02,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:02,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:02,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:02,268 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:02,268 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:02,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:02,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:02,269 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:02,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:02,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:02,270 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2022-11-16 11:50:02,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:02,270 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:02,271 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 11:50:02,280 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:02,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:02,373 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:02,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:02,375 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:02,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-16 11:50:02,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:02,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:02,446 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:50:02,446 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 11:50:02,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:02,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:02,451 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:02,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-16 11:50:02,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:02,457 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:02,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-11-16 11:50:02,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:02,486 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:02,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-16 11:50:02,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:02,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:02,534 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:02,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:02,545 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:02,545 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:02,545 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:02,545 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:02,545 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:02,545 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,545 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:02,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:02,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2022-11-16 11:50:02,546 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:02,546 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:02,547 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 11:50:02,557 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 11:50:02,649 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:02,650 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:02,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:02,655 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:02,664 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 11:50:02,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-16 11:50:02,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:02,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:02,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:02,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:02,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:02,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:02,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:02,698 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:50:02,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:02,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:02,709 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:02,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-16 11:50:02,724 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 11:50:02,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:02,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:02,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:02,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:02,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:02,742 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:02,742 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:02,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:02,755 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:02,755 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:02,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:02,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:02,762 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:02,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-16 11:50:02,766 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:02,766 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:02,766 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:02,766 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 11:50:02,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:02,778 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:02,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:02,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:02,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:02,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:02,884 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 11:50:02,885 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 11:50:02,885 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 59 transitions. cyclomatic complexity: 22 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 11:50:02,910 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 59 transitions. cyclomatic complexity: 22. 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 54 states and 77 transitions. Complement of second has 5 states. [2022-11-16 11:50:02,911 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 11:50:02,912 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 11:50:02,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-11-16 11:50:02,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-16 11:50:02,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:02,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-16 11:50:02,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:02,914 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-16 11:50:02,914 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:02,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 77 transitions. [2022-11-16 11:50:02,915 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:50:02,916 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 64 transitions. [2022-11-16 11:50:02,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-11-16 11:50:02,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-16 11:50:02,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-16 11:50:02,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:02,917 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-16 11:50:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-16 11:50:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-11-16 11:50:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.4) internal successors, (63), 44 states have internal predecessors, (63), 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 11:50:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2022-11-16 11:50:02,920 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-16 11:50:02,920 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-16 11:50:02,921 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-16 11:50:02,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2022-11-16 11:50:02,921 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:50:02,922 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:02,922 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:02,922 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:02,923 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:50:02,923 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(22, 2);call #Ultimate.allocInit(12, 3); 1024#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 1025#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1057#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1029#L80 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 := 1, 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; 1030#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1031#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1032#L47-3 assume !false; 1053#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1044#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1045#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~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_~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; 1051#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1046#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1047#L47-5 [2022-11-16 11:50:02,923 INFO L750 eck$LassoCheckResult]: Loop: 1047#L47-5 assume !false; 1052#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1059#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1047#L47-5 [2022-11-16 11:50:02,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:02,924 INFO L85 PathProgramCache]: Analyzing trace with hash 124962288, now seen corresponding path program 1 times [2022-11-16 11:50:02,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:02,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439150995] [2022-11-16 11:50:02,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:02,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:02,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-11-16 11:50:02,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-11-16 11:50:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:03,085 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 11:50:03,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:03,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439150995] [2022-11-16 11:50:03,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439150995] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:03,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:03,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:50:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454600996] [2022-11-16 11:50:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:03,087 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:50:03,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:03,088 INFO L85 PathProgramCache]: Analyzing trace with hash 217663, now seen corresponding path program 1 times [2022-11-16 11:50:03,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:03,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138488004] [2022-11-16 11:50:03,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:03,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:03,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:03,097 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:03,140 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:03,140 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:03,140 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:03,140 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:03,140 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:03,140 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:03,141 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:03,141 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:03,141 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2022-11-16 11:50:03,141 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:03,141 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:03,143 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 11:50:03,151 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 11:50:03,249 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:03,249 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:03,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:03,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:03,251 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:03,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:03,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:03,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-16 11:50:03,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:03,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:03,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:03,318 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:03,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-16 11:50:03,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:03,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:03,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:03,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:03,385 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:03,386 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:03,386 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:03,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:03,386 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:03,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:03,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:03,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:03,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2022-11-16 11:50:03,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:03,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:03,388 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 11:50:03,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:03,489 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:03,489 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:03,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:03,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:03,491 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:03,503 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 11:50:03,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-16 11:50:03,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:03,519 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:03,519 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:03,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:03,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:03,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:03,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:03,532 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:03,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:03,539 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:03,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:03,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:03,543 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:03,561 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:03,561 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:03,561 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:03,561 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 11:50:03,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-16 11:50:03,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:03,571 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:03,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:03,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:03,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:03,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:03,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:03,707 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 11:50:03,707 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 11:50:03,708 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 11:50:03,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 63 transitions. cyclomatic complexity: 23. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 73 states and 102 transitions. Complement of second has 5 states. [2022-11-16 11:50:03,745 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 11:50:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 11:50:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2022-11-16 11:50:03,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-16 11:50:03,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:03,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-16 11:50:03,752 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:03,752 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-16 11:50:03,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:03,753 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 102 transitions. [2022-11-16 11:50:03,754 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-16 11:50:03,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 65 states and 89 transitions. [2022-11-16 11:50:03,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-16 11:50:03,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-16 11:50:03,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2022-11-16 11:50:03,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:03,756 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2022-11-16 11:50:03,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2022-11-16 11:50:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-11-16 11:50:03,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.3958333333333333) internal successors, (67), 47 states have internal predecessors, (67), 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 11:50:03,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2022-11-16 11:50:03,763 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2022-11-16 11:50:03,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:03,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:50:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:50:03,764 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. 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 11:50:03,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:03,804 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-11-16 11:50:03,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2022-11-16 11:50:03,805 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-16 11:50:03,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2022-11-16 11:50:03,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-16 11:50:03,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-16 11:50:03,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-16 11:50:03,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:03,806 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-16 11:50:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-16 11:50:03,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-16 11:50:03,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 48 states have (on average 1.375) internal successors, (66), 47 states have internal predecessors, (66), 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 11:50:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2022-11-16 11:50:03,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-16 11:50:03,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:50:03,812 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-16 11:50:03,812 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-16 11:50:03,812 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2022-11-16 11:50:03,815 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-16 11:50:03,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:03,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:03,817 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:03,817 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:50:03,817 INFO L748 eck$LassoCheckResult]: Stem: 1339#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(22, 2);call #Ultimate.allocInit(12, 3); 1307#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 1308#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1343#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1312#L80 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 := 1, 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; 1313#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1314#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1315#L47-3 assume !false; 1341#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1324#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1325#L47-3 assume !false; 1340#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1327#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1328#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~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_~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; 1334#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1329#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1331#L57-8 [2022-11-16 11:50:03,817 INFO L750 eck$LassoCheckResult]: Loop: 1331#L57-8 assume !false; 1321#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1322#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1331#L57-8 [2022-11-16 11:50:03,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1441762439, now seen corresponding path program 1 times [2022-11-16 11:50:03,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:03,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990018850] [2022-11-16 11:50:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:03,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:03,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:03,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990018850] [2022-11-16 11:50:03,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990018850] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:50:03,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722517996] [2022-11-16 11:50:03,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:03,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:50:03,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:03,954 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:50:03,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-16 11:50:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:04,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:04,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:04,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:04,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:50:04,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:04,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722517996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:50:04,121 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:50:04,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-16 11:50:04,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009429280] [2022-11-16 11:50:04,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:50:04,123 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:50:04,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,124 INFO L85 PathProgramCache]: Analyzing trace with hash 243422, now seen corresponding path program 1 times [2022-11-16 11:50:04,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:04,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569001046] [2022-11-16 11:50:04,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:04,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:04,192 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:04,192 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:04,192 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:04,192 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:04,192 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:04,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:04,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:04,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2022-11-16 11:50:04,193 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:04,193 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:04,194 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 11:50:04,202 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 11:50:04,325 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:04,325 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:04,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:04,328 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:04,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:04,334 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:04,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-16 11:50:04,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:04,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:04,373 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:04,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:04,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:04,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-16 11:50:04,416 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:04,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:04,427 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:04,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:04,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:04,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:04,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:04,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:04,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:04,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2022-11-16 11:50:04,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:04,428 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:04,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:04,437 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 11:50:04,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:04,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:04,570 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:04,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:04,572 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:04,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-16 11:50:04,579 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 11:50:04,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:04,595 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:04,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:04,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:04,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:04,596 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:04,596 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:04,606 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:04,609 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:04,610 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:04,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:04,611 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:04,620 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:04,620 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:04,620 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:04,620 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 11:50:04,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-16 11:50:04,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:04,631 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:04,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:04,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:04,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:04,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:04,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:04,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:04,718 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 11:50:04,719 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 11:50:04,719 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23 Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:50:04,743 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48 states and 66 transitions. cyclomatic complexity: 23. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 75 states and 104 transitions. Complement of second has 5 states. [2022-11-16 11:50:04,744 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 11:50:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:50:04,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2022-11-16 11:50:04,745 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-16 11:50:04,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:04,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-16 11:50:04,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:04,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-16 11:50:04,747 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:04,747 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 104 transitions. [2022-11-16 11:50:04,748 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-16 11:50:04,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 67 states and 91 transitions. [2022-11-16 11:50:04,749 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-16 11:50:04,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-11-16 11:50:04,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 91 transitions. [2022-11-16 11:50:04,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:04,750 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 91 transitions. [2022-11-16 11:50:04,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 91 transitions. [2022-11-16 11:50:04,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2022-11-16 11:50:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 50 states have internal predecessors, (70), 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 11:50:04,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-16 11:50:04,753 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-16 11:50:04,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:04,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 11:50:04,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:50:04,754 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 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 11:50:04,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:04,855 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-11-16 11:50:04,855 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 124 transitions. [2022-11-16 11:50:04,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-16 11:50:04,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 87 states and 118 transitions. [2022-11-16 11:50:04,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-11-16 11:50:04,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-11-16 11:50:04,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 118 transitions. [2022-11-16 11:50:04,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:04,859 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-11-16 11:50:04,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 118 transitions. [2022-11-16 11:50:04,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 63. [2022-11-16 11:50:04,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 62 states have internal predecessors, (88), 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 11:50:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2022-11-16 11:50:04,862 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-16 11:50:04,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 11:50:04,863 INFO L428 stractBuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-16 11:50:04,864 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-16 11:50:04,864 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2022-11-16 11:50:04,864 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-16 11:50:04,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:04,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:04,865 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:04,866 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:50:04,866 INFO L748 eck$LassoCheckResult]: Stem: 1779#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(22, 2);call #Ultimate.allocInit(12, 3); 1743#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 1744#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1781#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1748#L80 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 := 1, 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; 1749#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1750#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1751#L47-3 assume !false; 1786#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1764#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1754#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 1755#L76-7 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_~res~0#1 := 16777216 * (128 + base2flt_~e#1); 1770#L77-7 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1762#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1763#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~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_~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; 1771#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1735#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1736#L80-2 main_#t~ret10#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret10#1;havoc main_#t~ret10#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; 1780#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1745#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1746#L57-11 [2022-11-16 11:50:04,867 INFO L750 eck$LassoCheckResult]: Loop: 1746#L57-11 assume !false; 1752#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1753#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1746#L57-11 [2022-11-16 11:50:04,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,867 INFO L85 PathProgramCache]: Analyzing trace with hash -277950123, now seen corresponding path program 1 times [2022-11-16 11:50:04,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:04,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885410944] [2022-11-16 11:50:04,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:04,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:04,994 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 11:50:04,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:04,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885410944] [2022-11-16 11:50:04,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885410944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:50:04,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:50:04,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:50:04,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916430894] [2022-11-16 11:50:04,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:50:04,996 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:50:04,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,997 INFO L85 PathProgramCache]: Analyzing trace with hash 327827, now seen corresponding path program 1 times [2022-11-16 11:50:04,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:04,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927926846] [2022-11-16 11:50:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:04,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:05,005 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:05,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:05,013 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:05,050 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:05,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:05,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:05,050 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:05,050 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:05,051 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:05,051 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:05,051 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2022-11-16 11:50:05,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:05,051 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:05,052 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 11:50:05,061 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 11:50:05,174 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:05,174 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:05,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,176 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:05,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-16 11:50:05,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:50:05,223 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 11:50:05,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,235 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-16 11:50:05,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:05,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,283 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:05,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-16 11:50:05,334 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:05,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,349 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:05,349 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:05,349 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:05,349 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:05,349 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:05,350 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,350 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:05,350 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:05,350 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2022-11-16 11:50:05,350 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:05,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:05,351 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:05,361 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 11:50:05,474 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:05,474 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:05,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,479 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,484 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 11:50:05,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-16 11:50:05,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:05,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:05,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:05,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:05,500 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:05,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:05,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:05,518 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:50:05,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,525 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,531 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 11:50:05,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-16 11:50:05,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:05,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:05,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:05,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:05,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:05,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:05,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:05,559 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:05,562 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:05,562 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:05,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,570 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,572 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:05,572 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:05,572 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:05,573 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 11:50:05,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-16 11:50:05,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,583 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:05,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:05,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:05,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:05,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:05,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:05,682 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 11:50:05,683 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 11:50:05,683 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 63 states and 88 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:50:05,691 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 63 states and 88 transitions. cyclomatic complexity: 30. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 66 states and 92 transitions. Complement of second has 4 states. [2022-11-16 11:50:05,691 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 11:50:05,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:50:05,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-11-16 11:50:05,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 3 letters. [2022-11-16 11:50:05,693 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:05,693 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-16 11:50:05,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:05,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 6 letters. [2022-11-16 11:50:05,694 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:05,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2022-11-16 11:50:05,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:50:05,696 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 60 states and 84 transitions. [2022-11-16 11:50:05,696 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-16 11:50:05,697 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-16 11:50:05,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 84 transitions. [2022-11-16 11:50:05,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:05,697 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-16 11:50:05,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 84 transitions. [2022-11-16 11:50:05,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-16 11:50:05,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.4) internal successors, (84), 59 states have internal predecessors, (84), 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 11:50:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2022-11-16 11:50:05,700 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-16 11:50:05,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:05,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:50:05,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:50:05,701 INFO L87 Difference]: Start difference. First operand 60 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 11:50:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:05,817 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2022-11-16 11:50:05,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2022-11-16 11:50:05,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:50:05,819 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 89 transitions. [2022-11-16 11:50:05,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-11-16 11:50:05,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-16 11:50:05,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 89 transitions. [2022-11-16 11:50:05,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-16 11:50:05,820 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 89 transitions. [2022-11-16 11:50:05,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 89 transitions. [2022-11-16 11:50:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2022-11-16 11:50:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 59 states have internal predecessors, (83), 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 11:50:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2022-11-16 11:50:05,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-16 11:50:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:50:05,824 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-16 11:50:05,824 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-16 11:50:05,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 83 transitions. [2022-11-16 11:50:05,825 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-16 11:50:05,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:05,825 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:05,826 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:50:05,826 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-16 11:50:05,826 INFO L748 eck$LassoCheckResult]: Stem: 2115#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(22, 2);call #Ultimate.allocInit(12, 3); 2085#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_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#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_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#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; 2086#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2119#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2089#L80 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 := 1, 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; 2090#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2091#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2092#L47-3 assume !false; 2117#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2101#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 2102#L47-3 assume !false; 2124#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2133#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2130#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2094#L76-7 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_~res~0#1 := 16777216 * (128 + base2flt_~e#1); 2109#L77-7 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2103#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2104#L80-1 main_#t~ret9#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~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_~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; 2110#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2079#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2080#L80-2 main_#t~ret10#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret10#1;havoc main_#t~ret10#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; 2118#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2087#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2088#L47-7 [2022-11-16 11:50:05,827 INFO L750 eck$LassoCheckResult]: Loop: 2088#L47-7 assume !false; 2081#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2082#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2088#L47-7 [2022-11-16 11:50:05,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:05,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2132423710, now seen corresponding path program 1 times [2022-11-16 11:50:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:05,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762828252] [2022-11-16 11:50:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:05,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:05,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:05,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:50:05,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762828252] [2022-11-16 11:50:05,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762828252] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:50:05,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052420633] [2022-11-16 11:50:05,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:05,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 11:50:05,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,987 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-16 11:50:06,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:06,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 11:50:06,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:06,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:50:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:06,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052420633] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 11:50:06,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 11:50:06,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-16 11:50:06,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347131879] [2022-11-16 11:50:06,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 11:50:06,277 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-16 11:50:06,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:06,278 INFO L85 PathProgramCache]: Analyzing trace with hash 302068, now seen corresponding path program 1 times [2022-11-16 11:50:06,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:06,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245462069] [2022-11-16 11:50:06,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:06,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:06,285 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:06,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:06,330 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:06,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:06,331 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:06,331 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:06,331 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:06,331 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,331 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:06,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:06,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2022-11-16 11:50:06,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:06,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:06,333 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 11:50:06,342 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:06,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:06,434 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:06,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:06,436 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,448 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:06,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:06,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-16 11:50:06,487 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:50:06,488 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 11:50:06,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:06,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:06,500 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:06,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:06,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-16 11:50:06,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:06,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:06,543 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:06,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:06,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-16 11:50:06,588 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:06,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:06,599 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:06,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:06,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:06,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:06,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:06,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:06,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:06,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2022-11-16 11:50:06,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:06,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:06,601 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 11:50:06,610 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 11:50:06,691 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:06,692 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:06,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:06,693 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,699 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 11:50:06,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-16 11:50:06,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:06,715 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:06,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:06,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:06,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:06,717 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:06,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:06,734 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:50:06,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:06,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:06,740 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,747 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 11:50:06,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-16 11:50:06,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:06,763 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:06,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:06,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:06,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:06,764 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:06,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:06,786 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:06,789 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:06,789 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:06,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:06,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:06,791 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:06,799 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:06,799 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:06,800 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:06,800 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 11:50:06,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-16 11:50:06,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:06,810 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:06,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:06,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:06,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:06,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:06,948 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 11:50:06,949 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 11:50:06,950 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 83 transitions. cyclomatic complexity: 27 Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 11:50:06,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 83 transitions. cyclomatic complexity: 27. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 64 states and 87 transitions. Complement of second has 4 states. [2022-11-16 11:50:06,960 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 11:50:06,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 11:50:06,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-11-16 11:50:06,963 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-16 11:50:06,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:06,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 26 letters. Loop has 3 letters. [2022-11-16 11:50:06,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:06,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 6 letters. [2022-11-16 11:50:06,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:06,966 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 87 transitions. [2022-11-16 11:50:06,967 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:50:06,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2022-11-16 11:50:06,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:50:06,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:50:06,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:50:06,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:50:06,968 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:06,968 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:06,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:50:06,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:50:06,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:50:06,969 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 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 11:50:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:50:06,970 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-16 11:50:06,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-16 11:50:06,970 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:50:06,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:50:06,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:50:06,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:50:06,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:50:06,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:50:06,971 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:06,971 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:50:06,973 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:06,973 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-16 11:50:06,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:50:06,973 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:50:06,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:50:06,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:50:06 BoogieIcfgContainer [2022-11-16 11:50:06,986 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:50:06,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:50:06,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:50:06,987 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:50:06,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:49:58" (3/4) ... [2022-11-16 11:50:06,990 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:50:06,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:50:06,992 INFO L158 Benchmark]: Toolchain (without parser) took 9912.36ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 73.7MB in the beginning and 92.7MB in the end (delta: -18.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-16 11:50:06,992 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:06,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.29ms. Allocated memory is still 115.3MB. Free memory was 73.4MB in the beginning and 88.6MB in the end (delta: -15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:50:06,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.81ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 85.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:50:06,994 INFO L158 Benchmark]: Boogie Preprocessor took 86.48ms. Allocated memory is still 115.3MB. Free memory was 85.6MB in the beginning and 83.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:50:06,994 INFO L158 Benchmark]: RCFGBuilder took 1025.29ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 56.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-16 11:50:06,994 INFO L158 Benchmark]: BuchiAutomizer took 8107.55ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 56.3MB in the beginning and 92.7MB in the end (delta: -36.4MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-16 11:50:06,995 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 169.9MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:06,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 115.3MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.29ms. Allocated memory is still 115.3MB. Free memory was 73.4MB in the beginning and 88.6MB in the end (delta: -15.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.81ms. Allocated memory is still 115.3MB. Free memory was 88.6MB in the beginning and 85.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.48ms. Allocated memory is still 115.3MB. Free memory was 85.6MB in the beginning and 83.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1025.29ms. Allocated memory is still 115.3MB. Free memory was 83.5MB in the beginning and 56.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 8107.55ms. Allocated memory was 115.3MB in the beginning and 169.9MB in the end (delta: 54.5MB). Free memory was 56.3MB in the beginning and 92.7MB in the end (delta: -36.4MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 169.9MB. Free memory is still 92.7MB. 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 13 terminating modules (6 trivial, 7 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. 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. 6 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.0s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.0s. Construction of modules took 0.4s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 9. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 122 StatesRemovedByMinimization, 10 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 [7, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 596 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 589 mSDsluCounter, 988 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 222 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 306 IncrementalHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 766 mSDtfsCounter, 306 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf100 lsp56 ukn100 mio100 lsp100 div561 bol100 ite100 ukn100 eq132 hnf96 smp42 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 78ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s 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 11:50:07,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:07,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:07,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-16 11:50:07,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eee5aefc-de7c-4258-9dc6-3e6484ea46e1/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