./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:34:31,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:34:31,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:34:31,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:34:31,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:34:31,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:34:31,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:34:31,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:34:31,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:34:31,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:34:31,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:34:31,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:34:31,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:34:31,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:34:31,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:34:31,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:34:31,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:34:31,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:34:31,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:34:31,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:34:31,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:34:31,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:34:31,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:34:31,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:34:31,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:34:31,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:34:31,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:34:31,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:34:31,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:34:31,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:34:31,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:34:31,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:34:31,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:34:31,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:34:31,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:34:31,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:34:31,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:34:31,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:34:31,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:34:31,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:34:31,208 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:34:31,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 19:34:31,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:34:31,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:34:31,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:34:31,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:34:31,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:34:31,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:34:31,252 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:34:31,252 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 19:34:31,252 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 19:34:31,253 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 19:34:31,254 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 19:34:31,254 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 19:34:31,254 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 19:34:31,254 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:34:31,255 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:34:31,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:34:31,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:34:31,255 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:34:31,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:34:31,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 19:34:31,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 19:34:31,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 19:34:31,256 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:34:31,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:34:31,258 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 19:34:31,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:34:31,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 19:34:31,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:34:31,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:34:31,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:34:31,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:34:31,260 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 19:34:31,261 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_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2022-11-18 19:34:31,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:34:31,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:34:31,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:34:31,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:34:31,577 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:34:31,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-18 19:34:31,647 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/data/4c9cd0d55/75450b1d0b27431395256499b7f1a37e/FLAGc38a39fa5 [2022-11-18 19:34:32,065 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:34:32,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-18 19:34:32,074 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/data/4c9cd0d55/75450b1d0b27431395256499b7f1a37e/FLAGc38a39fa5 [2022-11-18 19:34:32,094 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/data/4c9cd0d55/75450b1d0b27431395256499b7f1a37e [2022-11-18 19:34:32,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:34:32,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:34:32,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:34:32,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:34:32,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:34:32,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@434bfab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32, skipping insertion in model container [2022-11-18 19:34:32,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:34:32,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:34:32,407 WARN L234 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_7b6495b6-de63-4360-897d-8d66e4b5acca/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-18 19:34:32,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:34:32,507 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:34:32,524 WARN L234 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_7b6495b6-de63-4360-897d-8d66e4b5acca/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-18 19:34:32,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:34:32,576 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:34:32,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32 WrapperNode [2022-11-18 19:34:32,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:34:32,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:34:32,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:34:32,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:34:32,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,631 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 374 [2022-11-18 19:34:32,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:34:32,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:34:32,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:34:32,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:34:32,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:34:32,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:34:32,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:34:32,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:34:32,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (1/1) ... [2022-11-18 19:34:32,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:32,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:32,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:32,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 19:34:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:34:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:34:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:34:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:34:32,838 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:34:32,839 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:34:33,506 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:34:33,513 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:34:33,514 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-18 19:34:33,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:33 BoogieIcfgContainer [2022-11-18 19:34:33,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:34:33,530 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 19:34:33,530 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 19:34:33,537 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 19:34:33,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:34:33,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 07:34:32" (1/3) ... [2022-11-18 19:34:33,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44801c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:34:33, skipping insertion in model container [2022-11-18 19:34:33,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:34:33,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:32" (2/3) ... [2022-11-18 19:34:33,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44801c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 07:34:33, skipping insertion in model container [2022-11-18 19:34:33,540 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 19:34:33,540 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:33" (3/3) ... [2022-11-18 19:34:33,548 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2022-11-18 19:34:33,617 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 19:34:33,618 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 19:34:33,618 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 19:34:33,618 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 19:34:33,618 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 19:34:33,618 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 19:34:33,618 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 19:34:33,618 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 19:34:33,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 103 states, 102 states have (on average 1.7941176470588236) internal successors, (183), 102 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,646 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-18 19:34:33,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:33,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:33,652 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:34:33,652 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:33,652 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 19:34:33,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 103 states, 102 states have (on average 1.7941176470588236) internal successors, (183), 102 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:34:33,659 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-11-18 19:34:33,660 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:33,660 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:33,660 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-11-18 19:34:33,660 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:33,667 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); 32#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_~sb~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_~sb~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); 45#L57-2true [2022-11-18 19:34:33,667 INFO L750 eck$LassoCheckResult]: Loop: 45#L57-2true assume !false; 31#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 76#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 45#L57-2true [2022-11-18 19:34:33,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:33,672 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-11-18 19:34:33,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:33,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379025478] [2022-11-18 19:34:33,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:33,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:33,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:33,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379025478] [2022-11-18 19:34:33,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379025478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:33,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:33,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:33,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046845878] [2022-11-18 19:34:33,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:33,931 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:34:33,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:33,935 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-11-18 19:34:33,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:33,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828492334] [2022-11-18 19:34:33,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:33,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:33,950 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:33,991 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:34,051 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:34,051 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:34,052 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:34,052 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:34,052 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:34,052 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:34,052 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:34,053 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:34,053 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2022-11-18 19:34:34,053 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:34,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:34,072 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:34,090 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:34,241 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:34,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:34,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:34,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:34,253 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:34,256 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:34,256 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:34,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 19:34:34,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:34,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:34,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:34,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:34,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:34,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:34,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 19:34:34,346 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:34,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:34,355 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:34,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:34,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:34,356 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:34,356 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:34,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:34,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:34,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:34,357 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration1_Loop [2022-11-18 19:34:34,357 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:34,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:34,358 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:34,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:34,485 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:34,491 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:34,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:34,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:34,497 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:34,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:34,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:34,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:34,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:34,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:34,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:34,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:34,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:34,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 19:34:34,529 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:34,536 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:34,536 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:34,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:34,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:34,541 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:34,548 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:34,548 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:34,549 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:34,549 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 19:34:34,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 19:34:34,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:34,561 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:34,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:34,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:34,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:34,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:34,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:34,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:34,723 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 [2022-11-18 19:34:34,728 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 103 states, 102 states have (on average 1.7941176470588236) internal successors, (183), 102 states have internal predecessors, (183), 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) [2022-11-18 19:34:34,858 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 103 states, 102 states have (on average 1.7941176470588236) internal successors, (183), 102 states have internal predecessors, (183), 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 306 states and 539 transitions. Complement of second has 6 states. [2022-11-18 19:34:34,861 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 [2022-11-18 19:34:34,865 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) [2022-11-18 19:34:34,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 356 transitions. [2022-11-18 19:34:34,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 356 transitions. Stem has 4 letters. Loop has 3 letters. [2022-11-18 19:34:34,869 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:34,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 356 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 19:34:34,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:34,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 356 transitions. Stem has 4 letters. Loop has 6 letters. [2022-11-18 19:34:34,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:34,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 306 states and 539 transitions. [2022-11-18 19:34:34,881 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-11-18 19:34:34,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 306 states to 103 states and 168 transitions. [2022-11-18 19:34:34,888 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2022-11-18 19:34:34,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 100 [2022-11-18 19:34:34,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 168 transitions. [2022-11-18 19:34:34,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:34,891 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 168 transitions. [2022-11-18 19:34:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 168 transitions. [2022-11-18 19:34:34,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 88. [2022-11-18 19:34:34,924 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) [2022-11-18 19:34:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 148 transitions. [2022-11-18 19:34:34,927 INFO L240 hiAutomatonCegarLoop]: Abstraction has 88 states and 148 transitions. [2022-11-18 19:34:34,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:34,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:34,931 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) [2022-11-18 19:34:35,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:35,016 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2022-11-18 19:34:35,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 72 transitions. [2022-11-18 19:34:35,017 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-18 19:34:35,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 72 transitions. [2022-11-18 19:34:35,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2022-11-18 19:34:35,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2022-11-18 19:34:35,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 72 transitions. [2022-11-18 19:34:35,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:35,019 INFO L218 hiAutomatonCegarLoop]: Abstraction has 51 states and 72 transitions. [2022-11-18 19:34:35,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 72 transitions. [2022-11-18 19:34:35,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2022-11-18 19:34:35,022 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) [2022-11-18 19:34:35,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 66 transitions. [2022-11-18 19:34:35,023 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-18 19:34:35,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:35,024 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 66 transitions. [2022-11-18 19:34:35,024 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 19:34:35,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 66 transitions. [2022-11-18 19:34:35,025 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-11-18 19:34:35,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:35,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:35,026 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:35,026 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:35,027 INFO L748 eck$LassoCheckResult]: Stem: 629#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); 599#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_~sb~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_~sb~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; 600#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 632#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 604#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; 605#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 606#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 607#L57-5 [2022-11-18 19:34:35,027 INFO L750 eck$LassoCheckResult]: Loop: 607#L57-5 assume !false; 609#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 610#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 607#L57-5 [2022-11-18 19:34:35,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305057, now seen corresponding path program 1 times [2022-11-18 19:34:35,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717009825] [2022-11-18 19:34:35,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:35,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:35,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717009825] [2022-11-18 19:34:35,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717009825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:35,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:35,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:34:35,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606207088] [2022-11-18 19:34:35,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:35,105 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:34:35,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,105 INFO L85 PathProgramCache]: Analyzing trace with hash 159017, now seen corresponding path program 1 times [2022-11-18 19:34:35,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166552438] [2022-11-18 19:34:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:35,151 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:35,151 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:35,151 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:35,151 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:35,151 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:35,151 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,152 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:35,152 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:35,152 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2022-11-18 19:34:35,152 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:35,152 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:35,153 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:35,161 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:35,263 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:35,263 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:35,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:35,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:35,290 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:35,290 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:35,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-18 19:34:35,319 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:34:35,319 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: [] [2022-11-18 19:34:35,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:35,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:35,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:35,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-18 19:34:35,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:35,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:35,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:35,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:35,374 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:35,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:35,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:35,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-18 19:34:35,417 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:35,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:35,427 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:35,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:35,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:35,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:35,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:35,427 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,427 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:35,427 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:35,427 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration2_Loop [2022-11-18 19:34:35,427 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:35,427 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:35,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:35,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:35,557 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:35,557 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:35,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:35,562 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:35,572 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:35,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-18 19:34:35,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:35,583 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:35,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:35,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:35,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:35,587 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:35,587 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:35,603 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:34:35,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:35,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:35,613 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:35,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:35,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:35,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:35,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:35,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:35,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:35,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:35,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:35,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-18 19:34:35,649 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:35,662 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:35,663 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:35,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:35,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:35,670 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:35,674 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:35,695 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:35,695 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:35,695 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 19:34:35,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-18 19:34:35,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:35,704 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:35,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:35,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:35,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:35,781 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 [2022-11-18 19:34:35,781 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) [2022-11-18 19:34:35,826 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. [2022-11-18 19:34:35,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 19:34:35,830 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) [2022-11-18 19:34:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-11-18 19:34:35,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 19:34:35,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:35,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-18 19:34:35,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:35,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-18 19:34:35,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:35,832 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 130 transitions. [2022-11-18 19:34:35,833 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-11-18 19:34:35,834 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 80 states and 117 transitions. [2022-11-18 19:34:35,835 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2022-11-18 19:34:35,835 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-18 19:34:35,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 117 transitions. [2022-11-18 19:34:35,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:35,835 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 117 transitions. [2022-11-18 19:34:35,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 117 transitions. [2022-11-18 19:34:35,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 48. [2022-11-18 19:34:35,838 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) [2022-11-18 19:34:35,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 70 transitions. [2022-11-18 19:34:35,839 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 70 transitions. [2022-11-18 19:34:35,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:35,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:35,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:35,840 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) [2022-11-18 19:34:35,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:35,911 INFO L93 Difference]: Finished difference Result 46 states and 64 transitions. [2022-11-18 19:34:35,911 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 64 transitions. [2022-11-18 19:34:35,912 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-18 19:34:35,918 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 64 transitions. [2022-11-18 19:34:35,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2022-11-18 19:34:35,920 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2022-11-18 19:34:35,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-18 19:34:35,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:35,922 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-18 19:34:35,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-18 19:34:35,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-18 19:34:35,928 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) [2022-11-18 19:34:35,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 59 transitions. [2022-11-18 19:34:35,929 INFO L240 hiAutomatonCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-18 19:34:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:35,933 INFO L428 stractBuchiCegarLoop]: Abstraction has 42 states and 59 transitions. [2022-11-18 19:34:35,933 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-18 19:34:35,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 59 transitions. [2022-11-18 19:34:35,934 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-18 19:34:35,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:35,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:35,934 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:35,934 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:35,935 INFO L748 eck$LassoCheckResult]: Stem: 902#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); 874#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_~sb~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_~sb~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; 875#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 904#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 879#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; 880#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 881#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 882#L47-3 [2022-11-18 19:34:35,935 INFO L750 eck$LassoCheckResult]: Loop: 882#L47-3 assume !false; 901#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 896#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 882#L47-3 [2022-11-18 19:34:35,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1807305031, now seen corresponding path program 1 times [2022-11-18 19:34:35,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689315212] [2022-11-18 19:34:35,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:35,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,969 INFO L85 PathProgramCache]: Analyzing trace with hash 133258, now seen corresponding path program 1 times [2022-11-18 19:34:35,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408330332] [2022-11-18 19:34:35,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,977 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:35,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:35,982 INFO L85 PathProgramCache]: Analyzing trace with hash -285740668, now seen corresponding path program 1 times [2022-11-18 19:34:35,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:35,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794916586] [2022-11-18 19:34:35,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:35,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:35,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:36,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:36,050 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:36,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:36,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:36,050 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:36,050 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:36,050 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,051 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:36,051 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:36,051 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2022-11-18 19:34:36,051 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:36,051 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:36,052 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:36,059 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:36,131 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:36,131 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:36,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,133 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:36,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:36,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-11-18 19:34:36,206 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:34:36,206 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: [] [2022-11-18 19:34:36,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:36,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,238 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:36,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:36,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-18 19:34:36,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:36,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,312 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-18 19:34:36,315 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:36,315 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:36,353 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:36,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-11-18 19:34:36,358 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:36,358 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:36,358 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:36,358 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:36,358 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:36,358 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,358 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:36,358 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:36,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration3_Loop [2022-11-18 19:34:36,359 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:36,359 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:36,359 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:36,367 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:36,469 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:36,469 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:36,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,470 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-18 19:34:36,474 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:36,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:36,484 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:36,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:36,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:36,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:36,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:36,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:36,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:34:36,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:36,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,503 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:36,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:36,527 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:36,527 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:36,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:36,527 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:36,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:36,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:36,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-18 19:34:36,545 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:36,549 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:36,549 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:36,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,557 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:36,565 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:36,565 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:36,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-18 19:34:36,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-18 19:34:36,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:36,570 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:36,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:36,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:36,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:36,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:36,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:36,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:36,672 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 19:34:36,672 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) [2022-11-18 19:34:36,698 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. [2022-11-18 19:34:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 19:34:36,702 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) [2022-11-18 19:34:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2022-11-18 19:34:36,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 3 letters. [2022-11-18 19:34:36,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:36,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 10 letters. Loop has 3 letters. [2022-11-18 19:34:36,703 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:36,703 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 7 letters. Loop has 6 letters. [2022-11-18 19:34:36,704 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:36,704 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 77 transitions. [2022-11-18 19:34:36,705 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-18 19:34:36,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 64 transitions. [2022-11-18 19:34:36,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2022-11-18 19:34:36,706 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-18 19:34:36,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 64 transitions. [2022-11-18 19:34:36,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:36,707 INFO L218 hiAutomatonCegarLoop]: Abstraction has 46 states and 64 transitions. [2022-11-18 19:34:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 64 transitions. [2022-11-18 19:34:36,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2022-11-18 19:34:36,718 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) [2022-11-18 19:34:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2022-11-18 19:34:36,722 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-18 19:34:36,723 INFO L428 stractBuchiCegarLoop]: Abstraction has 45 states and 63 transitions. [2022-11-18 19:34:36,723 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-18 19:34:36,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 63 transitions. [2022-11-18 19:34:36,724 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-18 19:34:36,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:36,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:36,724 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:36,724 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:36,725 INFO L748 eck$LassoCheckResult]: Stem: 1051#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); 1020#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_~sb~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_~sb~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; 1021#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1053#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1025#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; 1026#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1027#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1028#L47-3 assume !false; 1049#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1040#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1041#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; 1047#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1042#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1043#L47-5 [2022-11-18 19:34:36,725 INFO L750 eck$LassoCheckResult]: Loop: 1043#L47-5 assume !false; 1048#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1055#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1043#L47-5 [2022-11-18 19:34:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash 124962288, now seen corresponding path program 1 times [2022-11-18 19:34:36,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:36,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758696799] [2022-11-18 19:34:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:36,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:36,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:36,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758696799] [2022-11-18 19:34:36,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758696799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:36,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:36,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:34:36,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853953196] [2022-11-18 19:34:36,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:36,800 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:34:36,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 217663, now seen corresponding path program 1 times [2022-11-18 19:34:36,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:36,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809729970] [2022-11-18 19:34:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:36,804 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:36,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:36,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:36,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:36,881 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:36,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:36,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:36,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:36,882 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:36,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:36,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:36,882 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2022-11-18 19:34:36,882 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:36,882 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:36,883 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:36,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:36,974 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:36,974 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:36,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:36,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:36,976 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:36,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:36,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:36,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-18 19:34:37,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:37,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:37,015 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:37,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-18 19:34:37,020 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:37,020 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:37,061 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:37,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:37,074 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:37,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:37,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:37,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:37,075 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:37,075 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,075 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:37,075 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:37,075 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration4_Loop [2022-11-18 19:34:37,075 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:37,075 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:37,076 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:37,084 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:37,166 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:37,166 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:37,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:37,174 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:37,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-18 19:34:37,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:37,202 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:37,203 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:37,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:37,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:37,203 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:37,204 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:37,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:37,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:37,226 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:37,226 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:37,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:37,227 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:37,245 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:37,245 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:37,245 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:37,245 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-18 19:34:37,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-11-18 19:34:37,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:37,254 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:37,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:37,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:37,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:37,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:37,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:37,360 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 19:34:37,360 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) [2022-11-18 19:34:37,384 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. [2022-11-18 19:34:37,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 19:34:37,387 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) [2022-11-18 19:34:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 68 transitions. [2022-11-18 19:34:37,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 3 letters. [2022-11-18 19:34:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:37,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 19:34:37,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:37,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 68 transitions. Stem has 13 letters. Loop has 6 letters. [2022-11-18 19:34:37,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:37,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 102 transitions. [2022-11-18 19:34:37,392 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-11-18 19:34:37,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 65 states and 89 transitions. [2022-11-18 19:34:37,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-11-18 19:34:37,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2022-11-18 19:34:37,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 89 transitions. [2022-11-18 19:34:37,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:37,393 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 89 transitions. [2022-11-18 19:34:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 89 transitions. [2022-11-18 19:34:37,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 48. [2022-11-18 19:34:37,402 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) [2022-11-18 19:34:37,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2022-11-18 19:34:37,403 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 67 transitions. [2022-11-18 19:34:37,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:37,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:34:37,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:34:37,405 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) [2022-11-18 19:34:37,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:37,435 INFO L93 Difference]: Finished difference Result 50 states and 68 transitions. [2022-11-18 19:34:37,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 68 transitions. [2022-11-18 19:34:37,436 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-18 19:34:37,436 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 49 states and 67 transitions. [2022-11-18 19:34:37,436 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-11-18 19:34:37,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-11-18 19:34:37,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 67 transitions. [2022-11-18 19:34:37,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:37,437 INFO L218 hiAutomatonCegarLoop]: Abstraction has 49 states and 67 transitions. [2022-11-18 19:34:37,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 67 transitions. [2022-11-18 19:34:37,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-18 19:34:37,440 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) [2022-11-18 19:34:37,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 66 transitions. [2022-11-18 19:34:37,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-18 19:34:37,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:34:37,443 INFO L428 stractBuchiCegarLoop]: Abstraction has 48 states and 66 transitions. [2022-11-18 19:34:37,443 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-18 19:34:37,443 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 66 transitions. [2022-11-18 19:34:37,443 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-11-18 19:34:37,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:37,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:37,444 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:34:37,444 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:37,444 INFO L748 eck$LassoCheckResult]: Stem: 1335#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); 1303#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_~sb~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_~sb~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; 1304#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1339#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1308#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; 1309#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1310#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1311#L47-3 assume !false; 1337#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1320#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1322#L47-3 assume !false; 1336#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1323#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1324#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; 1330#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1325#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1327#L57-8 [2022-11-18 19:34:37,444 INFO L750 eck$LassoCheckResult]: Loop: 1327#L57-8 assume !false; 1317#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1318#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1327#L57-8 [2022-11-18 19:34:37,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:37,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1441762439, now seen corresponding path program 1 times [2022-11-18 19:34:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:37,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459661957] [2022-11-18 19:34:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:37,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:37,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:37,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:37,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459661957] [2022-11-18 19:34:37,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459661957] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:34:37,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341600287] [2022-11-18 19:34:37,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:37,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:34:37,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:37,506 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:34:37,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 19:34:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:37,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:37,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:37,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:34:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:37,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341600287] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:34:37,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:34:37,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 19:34:37,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370051125] [2022-11-18 19:34:37,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:34:37,636 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:34:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:37,637 INFO L85 PathProgramCache]: Analyzing trace with hash 243422, now seen corresponding path program 1 times [2022-11-18 19:34:37,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:37,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234735236] [2022-11-18 19:34:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:37,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:37,657 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:37,696 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:37,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:37,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:37,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:37,696 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:37,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:37,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:37,696 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2022-11-18 19:34:37,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:37,697 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:37,697 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:37,703 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:37,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:37,812 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:37,812 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:37,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:37,813 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:37,823 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:37,823 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:37,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-18 19:34:37,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:37,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:37,854 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:37,858 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:37,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:37,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-18 19:34:37,893 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:37,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:37,902 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:37,902 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:37,902 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:37,902 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:37,902 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:37,902 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:37,902 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:37,903 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:37,903 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration5_Loop [2022-11-18 19:34:37,903 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:37,903 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:37,904 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:37,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:38,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:38,008 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:38,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,010 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-18 19:34:38,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:38,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:38,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:38,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:38,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:38,024 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:38,026 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:38,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:38,034 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:38,039 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:38,039 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:38,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,042 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,045 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:38,046 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:38,046 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:38,046 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 19:34:38,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-18 19:34:38,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:38,057 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:38,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:38,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:38,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:38,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:38,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:38,142 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 [2022-11-18 19:34:38,142 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) [2022-11-18 19:34:38,165 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. [2022-11-18 19:34:38,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 19:34:38,167 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) [2022-11-18 19:34:38,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2022-11-18 19:34:38,167 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 3 letters. [2022-11-18 19:34:38,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:38,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 19 letters. Loop has 3 letters. [2022-11-18 19:34:38,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:38,168 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 67 transitions. Stem has 16 letters. Loop has 6 letters. [2022-11-18 19:34:38,168 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:38,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 104 transitions. [2022-11-18 19:34:38,170 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-11-18 19:34:38,170 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 67 states and 91 transitions. [2022-11-18 19:34:38,171 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-11-18 19:34:38,171 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2022-11-18 19:34:38,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 67 states and 91 transitions. [2022-11-18 19:34:38,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:38,171 INFO L218 hiAutomatonCegarLoop]: Abstraction has 67 states and 91 transitions. [2022-11-18 19:34:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states and 91 transitions. [2022-11-18 19:34:38,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 51. [2022-11-18 19:34:38,181 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) [2022-11-18 19:34:38,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-18 19:34:38,181 INFO L240 hiAutomatonCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-18 19:34:38,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:38,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:34:38,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:34:38,184 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) [2022-11-18 19:34:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:38,270 INFO L93 Difference]: Finished difference Result 93 states and 124 transitions. [2022-11-18 19:34:38,270 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 124 transitions. [2022-11-18 19:34:38,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-18 19:34:38,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 87 states and 118 transitions. [2022-11-18 19:34:38,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-11-18 19:34:38,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2022-11-18 19:34:38,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 118 transitions. [2022-11-18 19:34:38,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:38,273 INFO L218 hiAutomatonCegarLoop]: Abstraction has 87 states and 118 transitions. [2022-11-18 19:34:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 118 transitions. [2022-11-18 19:34:38,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 63. [2022-11-18 19:34:38,275 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) [2022-11-18 19:34:38,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2022-11-18 19:34:38,276 INFO L240 hiAutomatonCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-18 19:34:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:34:38,277 INFO L428 stractBuchiCegarLoop]: Abstraction has 63 states and 88 transitions. [2022-11-18 19:34:38,277 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-18 19:34:38,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 63 states and 88 transitions. [2022-11-18 19:34:38,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-11-18 19:34:38,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:38,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:38,279 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] [2022-11-18 19:34:38,279 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:38,279 INFO L748 eck$LassoCheckResult]: Stem: 1775#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); 1739#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_~sb~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_~sb~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; 1740#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1777#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1744#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; 1745#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1746#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1747#L47-3 assume !false; 1782#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1758#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1750#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 1751#L76-7 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_~res~0#1 := 16777216 * (128 + base2flt_~e#1); 1766#L77-7 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 1760#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1761#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; 1767#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1731#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 1732#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; 1776#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 1741#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1742#L57-11 [2022-11-18 19:34:38,279 INFO L750 eck$LassoCheckResult]: Loop: 1742#L57-11 assume !false; 1748#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 1749#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1742#L57-11 [2022-11-18 19:34:38,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:38,280 INFO L85 PathProgramCache]: Analyzing trace with hash -277950123, now seen corresponding path program 1 times [2022-11-18 19:34:38,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:38,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66134131] [2022-11-18 19:34:38,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:38,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:38,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:38,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66134131] [2022-11-18 19:34:38,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66134131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:34:38,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:34:38,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:34:38,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292538943] [2022-11-18 19:34:38,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:34:38,404 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:34:38,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:38,404 INFO L85 PathProgramCache]: Analyzing trace with hash 327827, now seen corresponding path program 1 times [2022-11-18 19:34:38,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:38,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698015199] [2022-11-18 19:34:38,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:38,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:38,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:38,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:38,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:38,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:38,448 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:38,448 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:38,448 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:38,448 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:38,449 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:38,449 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,449 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:38,449 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:38,449 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2022-11-18 19:34:38,449 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:38,449 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:38,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:38,458 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:38,546 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:38,546 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:38,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,547 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,559 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:38,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:38,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-18 19:34:38,583 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:34:38,583 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: [] [2022-11-18 19:34:38,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-11-18 19:34:38,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,587 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,590 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:38,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:38,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-11-18 19:34:38,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:38,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,615 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:38,623 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:38,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-18 19:34:38,658 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:38,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:38,666 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:38,666 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:38,667 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:38,667 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:38,667 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:38,667 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:38,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:38,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration6_Loop [2022-11-18 19:34:38,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:38,667 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:38,668 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:38,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:38,817 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:38,817 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:38,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,819 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:38,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:38,842 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:38,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:38,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:38,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:38,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:38,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:38,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-18 19:34:38,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:34:38,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:38,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,871 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,874 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:38,886 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:38,886 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:38,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:38,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:38,886 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:38,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:38,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:38,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-18 19:34:38,913 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:38,919 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:38,919 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:38,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:38,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:38,923 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:38,924 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:38,924 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:38,925 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:38,925 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-11-18 19:34:38,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-18 19:34:38,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2022-11-18 19:34:38,929 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:38,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:38,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:39,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:39,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:39,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:39,026 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 [2022-11-18 19:34:39,026 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) [2022-11-18 19:34:39,034 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. [2022-11-18 19:34:39,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 19:34:39,035 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) [2022-11-18 19:34:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 57 transitions. [2022-11-18 19:34:39,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 3 letters. [2022-11-18 19:34:39,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:39,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-18 19:34:39,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:39,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 57 transitions. Stem has 20 letters. Loop has 6 letters. [2022-11-18 19:34:39,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:39,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 92 transitions. [2022-11-18 19:34:39,041 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:34:39,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 60 states and 84 transitions. [2022-11-18 19:34:39,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-11-18 19:34:39,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-11-18 19:34:39,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 84 transitions. [2022-11-18 19:34:39,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:39,043 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-18 19:34:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 84 transitions. [2022-11-18 19:34:39,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-18 19:34:39,045 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) [2022-11-18 19:34:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 84 transitions. [2022-11-18 19:34:39,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 84 transitions. [2022-11-18 19:34:39,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:39,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:34:39,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:34:39,047 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) [2022-11-18 19:34:39,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:39,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:39,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:39,160 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2022-11-18 19:34:39,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2022-11-18 19:34:39,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:34:39,162 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 89 transitions. [2022-11-18 19:34:39,162 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 49 [2022-11-18 19:34:39,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2022-11-18 19:34:39,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 89 transitions. [2022-11-18 19:34:39,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-18 19:34:39,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 89 transitions. [2022-11-18 19:34:39,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 89 transitions. [2022-11-18 19:34:39,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2022-11-18 19:34:39,164 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) [2022-11-18 19:34:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2022-11-18 19:34:39,164 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-18 19:34:39,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:34:39,165 INFO L428 stractBuchiCegarLoop]: Abstraction has 60 states and 83 transitions. [2022-11-18 19:34:39,165 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-18 19:34:39,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 83 transitions. [2022-11-18 19:34:39,166 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-11-18 19:34:39,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 19:34:39,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 19:34:39,167 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] [2022-11-18 19:34:39,167 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-11-18 19:34:39,167 INFO L748 eck$LassoCheckResult]: Stem: 2111#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); 2081#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_~sb~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_~sb~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; 2082#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2115#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2085#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; 2086#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2087#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2088#L47-3 assume !false; 2113#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2097#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 2098#L47-3 assume !false; 2120#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2129#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2126#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2090#L76-7 assume 0 == base2flt_~m#1 || base2flt_~m#1 == 16777216 * (128 + base2flt_~e#1);base2flt_~res~0#1 := 16777216 * (128 + base2flt_~e#1); 2105#L77-7 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2099#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2100#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; 2106#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2075#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2076#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; 2114#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2083#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2084#L47-7 [2022-11-18 19:34:39,167 INFO L750 eck$LassoCheckResult]: Loop: 2084#L47-7 assume !false; 2077#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2078#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2084#L47-7 [2022-11-18 19:34:39,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:39,168 INFO L85 PathProgramCache]: Analyzing trace with hash 2132423710, now seen corresponding path program 1 times [2022-11-18 19:34:39,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:39,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800839898] [2022-11-18 19:34:39,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:39,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:39,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:39,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:34:39,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800839898] [2022-11-18 19:34:39,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800839898] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:34:39,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299877996] [2022-11-18 19:34:39,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:39,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:34:39,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,284 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-11-18 19:34:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:39,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:34:39,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:39,436 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:39,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:34:39,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:39,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299877996] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:34:39,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:34:39,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-11-18 19:34:39,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148678729] [2022-11-18 19:34:39,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:34:39,495 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-18 19:34:39,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:39,495 INFO L85 PathProgramCache]: Analyzing trace with hash 302068, now seen corresponding path program 1 times [2022-11-18 19:34:39,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:34:39,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182383496] [2022-11-18 19:34:39,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:34:39,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:34:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:39,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:34:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:34:39,503 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:34:39,531 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:39,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:39,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:39,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:39,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 19:34:39,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:39,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:39,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2022-11-18 19:34:39,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:39,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:39,533 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:39,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:39,613 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:39,613 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 19:34:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,616 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:39,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:39,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-18 19:34:39,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-18 19:34:39,651 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: [] [2022-11-18 19:34:39,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:39,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,661 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 19:34:39,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:39,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-18 19:34:39,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:39,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,697 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-18 19:34:39,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 19:34:39,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 19:34:39,722 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 19:34:39,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:39,725 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 19:34:39,725 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 19:34:39,725 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 19:34:39,725 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 19:34:39,725 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 19:34:39,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 19:34:39,726 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 19:34:39,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_3a.c.cil.c_Iteration7_Loop [2022-11-18 19:34:39,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 19:34:39,726 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 19:34:39,726 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:39,733 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 19:34:39,818 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 19:34:39,818 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 19:34:39,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,820 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-18 19:34:39,824 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:39,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:39,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:39,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:39,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:39,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:39,838 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:39,838 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:39,857 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-18 19:34:39,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-11-18 19:34:39,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,861 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-18 19:34:39,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 19:34:39,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 19:34:39,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 19:34:39,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 19:34:39,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 19:34:39,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 19:34:39,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 19:34:39,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 19:34:39,877 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 19:34:39,880 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-18 19:34:39,880 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 19:34:39,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 19:34:39,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:34:39,881 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 19:34:39,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-18 19:34:39,884 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 19:34:39,884 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 19:34:39,884 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 19:34:39,885 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-11-18 19:34:39,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:39,891 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 19:34:39,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:39,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 19:34:39,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:34:39,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 19:34:39,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:40,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:34:40,007 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-11-18 19:34:40,007 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) [2022-11-18 19:34:40,014 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. [2022-11-18 19:34:40,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-18 19:34:40,015 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) [2022-11-18 19:34:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-11-18 19:34:40,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 3 letters. [2022-11-18 19:34:40,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:40,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 26 letters. Loop has 3 letters. [2022-11-18 19:34:40,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:40,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 54 transitions. Stem has 23 letters. Loop has 6 letters. [2022-11-18 19:34:40,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 19:34:40,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 64 states and 87 transitions. [2022-11-18 19:34:40,017 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:34:40,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 64 states to 0 states and 0 transitions. [2022-11-18 19:34:40,018 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 19:34:40,018 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 19:34:40,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 19:34:40,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:40,018 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:34:40,018 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:34:40,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:34:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:34:40,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:34:40,019 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) [2022-11-18 19:34:40,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:40,019 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-11-18 19:34:40,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-11-18 19:34:40,019 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:34:40,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:34:40,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 19:34:40,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 19:34:40,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 19:34:40,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:34:40,020 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:34:40,020 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:34:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:34:40,020 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:34:40,020 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-11-18 19:34:40,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:34:40,021 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 19:34:40,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 19:34:40,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 07:34:40 BoogieIcfgContainer [2022-11-18 19:34:40,027 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 19:34:40,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:34:40,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:34:40,028 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:34:40,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:33" (3/4) ... [2022-11-18 19:34:40,031 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:34:40,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:34:40,032 INFO L158 Benchmark]: Toolchain (without parser) took 7934.04ms. Allocated memory was 90.2MB in the beginning and 138.4MB in the end (delta: 48.2MB). Free memory was 53.0MB in the beginning and 48.8MB in the end (delta: 4.1MB). Peak memory consumption was 53.7MB. Max. memory is 16.1GB. [2022-11-18 19:34:40,032 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:34:40,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.41ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 63.1MB in the end (delta: -10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:34:40,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.39ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 60.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:34:40,033 INFO L158 Benchmark]: Boogie Preprocessor took 46.82ms. Allocated memory is still 90.2MB. Free memory was 60.1MB in the beginning and 57.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:34:40,033 INFO L158 Benchmark]: RCFGBuilder took 849.31ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.9MB in the beginning and 80.1MB in the end (delta: -22.2MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-18 19:34:40,034 INFO L158 Benchmark]: BuchiAutomizer took 6497.13ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 79.7MB in the beginning and 48.8MB in the end (delta: 30.9MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2022-11-18 19:34:40,034 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 138.4MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:34:40,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 69.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.41ms. Allocated memory is still 90.2MB. Free memory was 52.8MB in the beginning and 63.1MB in the end (delta: -10.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.39ms. Allocated memory is still 90.2MB. Free memory was 62.9MB in the beginning and 60.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.82ms. Allocated memory is still 90.2MB. Free memory was 60.1MB in the beginning and 57.9MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 849.31ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 57.9MB in the beginning and 80.1MB in the end (delta: -22.2MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 6497.13ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 79.7MB in the beginning and 48.8MB in the end (delta: 30.9MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 138.4MB. Free memory is still 48.8MB. 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 6.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 4.7s. Construction of modules took 0.3s. Büchi inclusion checks took 1.1s. 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, 585 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 578 mSDsluCounter, 996 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 231 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 310 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 765 mSDtfsCounter, 310 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: 54ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 19:34:40,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:40,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:40,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-11-18 19:34:40,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6495b6-de63-4360-897d-8d66e4b5acca/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE