./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:48:49,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:48:49,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:48:49,372 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:48:49,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:48:49,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:48:49,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:48:49,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:48:49,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:48:49,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:48:49,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:48:49,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:48:49,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:48:49,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:48:49,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:48:49,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:48:49,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:48:49,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:48:49,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:48:49,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:48:49,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:48:49,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:48:49,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:48:49,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:48:49,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:48:49,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:48:49,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:48:49,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:48:49,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:48:49,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:48:49,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:48:49,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:48:49,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:48:49,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:48:49,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:48:49,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:48:49,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:48:49,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:48:49,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:48:49,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:48:49,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:48:49,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-10-17 10:48:49,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:48:49,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:48:49,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:48:49,536 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:48:49,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:48:49,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:48:49,538 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:48:49,539 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-10-17 10:48:49,539 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-10-17 10:48:49,539 INFO L138 SettingsManager]: * Use old map elimination=false [2022-10-17 10:48:49,540 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-10-17 10:48:49,541 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-10-17 10:48:49,541 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-10-17 10:48:49,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:48:49,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:48:49,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:48:49,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:48:49,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:48:49,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:48:49,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-10-17 10:48:49,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-10-17 10:48:49,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-10-17 10:48:49,544 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:48:49,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:48:49,544 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-10-17 10:48:49,545 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:48:49,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-10-17 10:48:49,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:48:49,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:48:49,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:48:49,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:48:49,547 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-10-17 10:48:49,548 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_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2022-10-17 10:48:49,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:48:49,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:48:49,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:48:49,928 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:48:49,928 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:48:49,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-10-17 10:48:50,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/data/fa777f0ac/7596ec4feb2b45f69742e665e16455fe/FLAG49b1f6e3c [2022-10-17 10:48:50,555 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:48:50,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2022-10-17 10:48:50,570 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/data/fa777f0ac/7596ec4feb2b45f69742e665e16455fe/FLAG49b1f6e3c [2022-10-17 10:48:50,867 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/data/fa777f0ac/7596ec4feb2b45f69742e665e16455fe [2022-10-17 10:48:50,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:48:50,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:48:50,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:50,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:48:50,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:48:50,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:50" (1/1) ... [2022-10-17 10:48:50,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e8e220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:50, skipping insertion in model container [2022-10-17 10:48:50,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:50" (1/1) ... [2022-10-17 10:48:50,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:48:50,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:48:51,106 WARN L230 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_ea16b741-d395-42fc-b784-65a0f7073c43/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-10-17 10:48:51,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:51,180 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:48:51,194 WARN L230 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_ea16b741-d395-42fc-b784-65a0f7073c43/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2022-10-17 10:48:51,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:51,298 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:48:51,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51 WrapperNode [2022-10-17 10:48:51,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:51,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:51,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:48:51,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:48:51,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,406 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 10, calls inlined = 8, statements flattened = 430 [2022-10-17 10:48:51,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:51,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:48:51,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:48:51,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:48:51,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,498 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:48:51,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:48:51,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:48:51,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:48:51,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (1/1) ... [2022-10-17 10:48:51,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:51,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:51,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:51,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-10-17 10:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:48:51,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:48:51,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:48:51,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:48:51,728 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:48:51,732 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:48:52,735 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:48:52,749 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:48:52,749 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-17 10:48:52,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:52 BoogieIcfgContainer [2022-10-17 10:48:52,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:48:52,753 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-10-17 10:48:52,754 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-10-17 10:48:52,759 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-10-17 10:48:52,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:48:52,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 17.10 10:48:50" (1/3) ... [2022-10-17 10:48:52,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7521858b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:48:52, skipping insertion in model container [2022-10-17 10:48:52,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:48:52,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:51" (2/3) ... [2022-10-17 10:48:52,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7521858b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.10 10:48:52, skipping insertion in model container [2022-10-17 10:48:52,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-10-17 10:48:52,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:52" (3/3) ... [2022-10-17 10:48:52,764 INFO L332 chiAutomizerObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2022-10-17 10:48:52,845 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-10-17 10:48:52,846 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-10-17 10:48:52,846 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-10-17 10:48:52,846 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-10-17 10:48:52,846 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-10-17 10:48:52,846 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-10-17 10:48:52,846 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-10-17 10:48:52,847 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-10-17 10:48:52,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.83206106870229) internal successors, (240), 131 states have internal predecessors, (240), 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) [2022-10-17 10:48:52,928 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-10-17 10:48:52,928 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:52,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:52,933 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:48:52,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:52,934 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-10-17 10:48:52,935 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 132 states, 131 states have (on average 1.83206106870229) internal successors, (240), 131 states have internal predecessors, (240), 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) [2022-10-17 10:48:52,969 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-10-17 10:48:52,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:52,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:52,970 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-10-17 10:48:52,970 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:52,978 INFO L748 eck$LassoCheckResult]: Stem: 114#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); 45#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 87#L29true assume !(0 == base2flt_~m#1 % 4294967296); 111#L35true assume !(base2flt_~m#1 % 4294967296 < 16777216); 60#L57-2true [2022-10-17 10:48:52,979 INFO L750 eck$LassoCheckResult]: Loop: 60#L57-2true assume !false; 43#L58true assume base2flt_~m#1 % 4294967296 >= 33554432; 100#L59true assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 60#L57-2true [2022-10-17 10:48:52,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:52,987 INFO L85 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2022-10-17 10:48:52,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:52,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302071584] [2022-10-17 10:48:52,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:52,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:53,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:53,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:53,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302071584] [2022-10-17 10:48:53,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302071584] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:53,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:53,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:53,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385511479] [2022-10-17 10:48:53,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:53,270 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:53,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:53,271 INFO L85 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2022-10-17 10:48:53,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:53,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329367505] [2022-10-17 10:48:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:53,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:53,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:53,332 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:53,405 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:53,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:53,407 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:53,407 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:53,408 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:53,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:53,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:53,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:53,409 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2022-10-17 10:48:53,409 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:53,409 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:53,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:53,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:53,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:53,623 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:53,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:53,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:53,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:53,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:53,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:53,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-10-17 10:48:53,721 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-10-17 10:48:53,721 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: [] [2022-10-17 10:48:53,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:53,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:53,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:53,730 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:53,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:53,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:53,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-10-17 10:48:53,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-10-17 10:48:53,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:53,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:53,775 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:53,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-10-17 10:48:53,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:53,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:53,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:53,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:53,836 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:53,836 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:53,836 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:53,836 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:53,837 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:53,837 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:53,837 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:53,837 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:53,837 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration1_Loop [2022-10-17 10:48:53,837 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:53,837 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:53,839 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:53,848 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:53,962 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:53,974 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:53,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:53,983 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:53,989 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 [2022-10-17 10:48:54,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:54,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:54,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:54,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:54,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:54,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-10-17 10:48:54,005 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:54,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:54,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-10-17 10:48:54,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:54,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:54,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:54,064 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:54,071 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 [2022-10-17 10:48:54,082 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:54,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:54,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:54,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:54,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:54,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:54,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:54,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-10-17 10:48:54,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:48:54,103 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:48:54,103 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:48:54,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:54,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:54,111 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:54,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-10-17 10:48:54,123 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:48:54,123 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:48:54,123 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:48:54,124 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:48:54,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:54,170 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:48:54,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:54,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:48:54,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:54,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:54,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:54,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:54,335 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 [2022-10-17 10:48:54,341 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 132 states, 131 states have (on average 1.83206106870229) internal successors, (240), 131 states have internal predecessors, (240), 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) [2022-10-17 10:48:54,542 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 132 states, 131 states have (on average 1.83206106870229) internal successors, (240), 131 states have internal predecessors, (240), 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 399 states and 720 transitions. Complement of second has 6 states. [2022-10-17 10:48:54,546 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 [2022-10-17 10:48:54,557 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) [2022-10-17 10:48:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 478 transitions. [2022-10-17 10:48:54,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 478 transitions. Stem has 4 letters. Loop has 3 letters. [2022-10-17 10:48:54,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:54,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 478 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:48:54,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:54,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 478 transitions. Stem has 4 letters. Loop has 6 letters. [2022-10-17 10:48:54,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:54,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 399 states and 720 transitions. [2022-10-17 10:48:54,591 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 39 [2022-10-17 10:48:54,598 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 399 states to 127 states and 216 transitions. [2022-10-17 10:48:54,600 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 123 [2022-10-17 10:48:54,601 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 124 [2022-10-17 10:48:54,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 127 states and 216 transitions. [2022-10-17 10:48:54,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:54,603 INFO L218 hiAutomatonCegarLoop]: Abstraction has 127 states and 216 transitions. [2022-10-17 10:48:54,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states and 216 transitions. [2022-10-17 10:48:54,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 108. [2022-10-17 10:48:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.7407407407407407) internal successors, (188), 107 states have internal predecessors, (188), 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) [2022-10-17 10:48:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 188 transitions. [2022-10-17 10:48:54,645 INFO L240 hiAutomatonCegarLoop]: Abstraction has 108 states and 188 transitions. [2022-10-17 10:48:54,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:54,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:54,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:54,677 INFO L87 Difference]: Start difference. First operand 108 states and 188 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) [2022-10-17 10:48:54,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-10-17 10:48:54,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:54,875 INFO L93 Difference]: Finished difference Result 65 states and 100 transitions. [2022-10-17 10:48:54,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 100 transitions. [2022-10-17 10:48:54,877 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-10-17 10:48:54,881 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 65 states and 100 transitions. [2022-10-17 10:48:54,882 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2022-10-17 10:48:54,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2022-10-17 10:48:54,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 100 transitions. [2022-10-17 10:48:54,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:48:54,886 INFO L218 hiAutomatonCegarLoop]: Abstraction has 65 states and 100 transitions. [2022-10-17 10:48:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 100 transitions. [2022-10-17 10:48:54,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2022-10-17 10:48:54,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 52 states have internal predecessors, (82), 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) [2022-10-17 10:48:54,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 82 transitions. [2022-10-17 10:48:54,901 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 82 transitions. [2022-10-17 10:48:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:54,902 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 82 transitions. [2022-10-17 10:48:54,903 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-10-17 10:48:54,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 82 transitions. [2022-10-17 10:48:54,903 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2022-10-17 10:48:54,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:54,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:54,904 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:54,904 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:54,905 INFO L748 eck$LassoCheckResult]: Stem: 798#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); 792#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 777#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 778#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 756#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 757#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 793#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 781#L47-3 [2022-10-17 10:48:54,905 INFO L750 eck$LassoCheckResult]: Loop: 781#L47-3 assume !false; 773#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 774#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 781#L47-3 [2022-10-17 10:48:54,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920711, now seen corresponding path program 1 times [2022-10-17 10:48:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:54,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995528765] [2022-10-17 10:48:54,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:54,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:54,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:54,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:54,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:54,969 INFO L85 PathProgramCache]: Analyzing trace with hash 153118, now seen corresponding path program 1 times [2022-10-17 10:48:54,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:54,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356034253] [2022-10-17 10:48:54,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:54,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:54,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:54,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:54,998 INFO L85 PathProgramCache]: Analyzing trace with hash 876132888, now seen corresponding path program 1 times [2022-10-17 10:48:54,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:54,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360860624] [2022-10-17 10:48:54,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:55,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:55,032 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:55,065 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:55,106 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:55,106 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:55,107 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:55,107 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:55,107 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:55,107 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,107 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:55,107 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:55,108 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2022-10-17 10:48:55,108 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:55,108 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:55,111 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:55,119 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:55,206 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:55,206 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:55,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:55,208 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:55,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:55,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:55,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-10-17 10:48:55,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:55,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:55,287 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:55,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:55,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:55,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-10-17 10:48:55,371 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:55,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:55,381 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:55,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:55,381 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:55,381 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:55,381 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:55,381 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,381 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:55,381 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:55,381 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration2_Loop [2022-10-17 10:48:55,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:55,382 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:55,383 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:55,394 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:55,495 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:55,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:55,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:55,498 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:55,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-10-17 10:48:55,505 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 [2022-10-17 10:48:55,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:55,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:55,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:55,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:55,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:55,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:55,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:55,535 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:48:55,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:48:55,539 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:48:55,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:55,541 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:55,546 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:48:55,546 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:48:55,546 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:48:55,547 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-10-17 10:48:55,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-10-17 10:48:55,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:55,597 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:48:55,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:55,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:55,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:48:55,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:55,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:55,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:55,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:55,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:55,706 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 [2022-10-17 10:48:55,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 82 transitions. cyclomatic complexity: 35 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) [2022-10-17 10:48:55,757 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 82 transitions. cyclomatic complexity: 35. 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 109 states and 171 transitions. Complement of second has 5 states. [2022-10-17 10:48:55,757 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 [2022-10-17 10:48:55,759 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) [2022-10-17 10:48:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2022-10-17 10:48:55,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:48:55,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:55,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 10 letters. Loop has 3 letters. [2022-10-17 10:48:55,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:55,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 99 transitions. Stem has 7 letters. Loop has 6 letters. [2022-10-17 10:48:55,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:55,762 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 171 transitions. [2022-10-17 10:48:55,764 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2022-10-17 10:48:55,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 97 states and 150 transitions. [2022-10-17 10:48:55,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 91 [2022-10-17 10:48:55,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 94 [2022-10-17 10:48:55,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 150 transitions. [2022-10-17 10:48:55,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:55,770 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 150 transitions. [2022-10-17 10:48:55,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 150 transitions. [2022-10-17 10:48:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 56. [2022-10-17 10:48:55,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.5357142857142858) internal successors, (86), 55 states have internal predecessors, (86), 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) [2022-10-17 10:48:55,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 86 transitions. [2022-10-17 10:48:55,786 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 86 transitions. [2022-10-17 10:48:55,786 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 86 transitions. [2022-10-17 10:48:55,786 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-10-17 10:48:55,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 86 transitions. [2022-10-17 10:48:55,787 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-10-17 10:48:55,787 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:55,787 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:55,788 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:55,789 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:55,789 INFO L748 eck$LassoCheckResult]: Stem: 1013#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); 1006#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 990#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 991#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 968#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 969#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1007#L35-1 assume !(base2flt_~m#1 % 4294967296 < 16777216); 974#L57-5 [2022-10-17 10:48:55,790 INFO L750 eck$LassoCheckResult]: Loop: 974#L57-5 assume !false; 970#L58-1 assume base2flt_~m#1 % 4294967296 >= 33554432; 971#L59-1 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 974#L57-5 [2022-10-17 10:48:55,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:55,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1807920737, now seen corresponding path program 1 times [2022-10-17 10:48:55,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:55,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432969968] [2022-10-17 10:48:55,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:55,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:55,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:55,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432969968] [2022-10-17 10:48:55,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432969968] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:55,906 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:55,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:55,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31556214] [2022-10-17 10:48:55,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:55,907 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:55,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash 178877, now seen corresponding path program 1 times [2022-10-17 10:48:55,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:55,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278866102] [2022-10-17 10:48:55,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:55,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:55,921 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:55,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:55,977 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:55,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:55,978 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:55,978 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:55,978 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:55,978 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:55,978 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:55,979 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:55,980 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2022-10-17 10:48:55,980 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:55,980 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:55,982 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:55,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:56,116 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:56,116 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:56,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:56,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:56,118 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:56,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:56,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:56,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-10-17 10:48:56,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:56,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:56,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:56,198 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:56,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:56,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:56,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-10-17 10:48:56,254 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:56,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:56,256 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:56,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:56,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:56,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:56,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:56,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:56,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:56,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:56,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration3_Loop [2022-10-17 10:48:56,257 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:56,257 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:56,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:56,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:56,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:56,407 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:56,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:56,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:56,415 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:56,420 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 [2022-10-17 10:48:56,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:56,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:56,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:56,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:56,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:56,432 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:56,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:56,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-10-17 10:48:56,442 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:48:56,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:48:56,456 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:48:56,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:56,460 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:56,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:48:56,466 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:48:56,466 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:48:56,466 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:48:56,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-10-17 10:48:56,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:56,510 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:48:56,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:56,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:48:56,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:56,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:56,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:56,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:56,583 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 [2022-10-17 10:48:56,583 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 86 transitions. cyclomatic complexity: 36 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) [2022-10-17 10:48:56,687 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 86 transitions. cyclomatic complexity: 36. 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 111 states and 174 transitions. Complement of second has 5 states. [2022-10-17 10:48:56,692 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 [2022-10-17 10:48:56,693 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) [2022-10-17 10:48:56,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2022-10-17 10:48:56,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 98 transitions. Stem has 7 letters. Loop has 3 letters. [2022-10-17 10:48:56,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:56,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 98 transitions. Stem has 10 letters. Loop has 3 letters. [2022-10-17 10:48:56,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:56,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 98 transitions. Stem has 7 letters. Loop has 6 letters. [2022-10-17 10:48:56,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:56,696 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 174 transitions. [2022-10-17 10:48:56,699 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 24 [2022-10-17 10:48:56,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 99 states and 153 transitions. [2022-10-17 10:48:56,701 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-10-17 10:48:56,701 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2022-10-17 10:48:56,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 153 transitions. [2022-10-17 10:48:56,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:56,702 INFO L218 hiAutomatonCegarLoop]: Abstraction has 99 states and 153 transitions. [2022-10-17 10:48:56,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 153 transitions. [2022-10-17 10:48:56,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 59. [2022-10-17 10:48:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.5254237288135593) internal successors, (90), 58 states have internal predecessors, (90), 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) [2022-10-17 10:48:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 90 transitions. [2022-10-17 10:48:56,726 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 90 transitions. [2022-10-17 10:48:56,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:56,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:56,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:56,727 INFO L87 Difference]: Start difference. First operand 59 states and 90 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) [2022-10-17 10:48:56,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:56,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:56,818 INFO L93 Difference]: Finished difference Result 61 states and 87 transitions. [2022-10-17 10:48:56,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 87 transitions. [2022-10-17 10:48:56,820 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:48:56,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 87 transitions. [2022-10-17 10:48:56,821 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2022-10-17 10:48:56,821 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 57 [2022-10-17 10:48:56,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 87 transitions. [2022-10-17 10:48:56,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:56,821 INFO L218 hiAutomatonCegarLoop]: Abstraction has 61 states and 87 transitions. [2022-10-17 10:48:56,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 87 transitions. [2022-10-17 10:48:56,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 53. [2022-10-17 10:48:56,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 53 states have (on average 1.490566037735849) internal successors, (79), 52 states have internal predecessors, (79), 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) [2022-10-17 10:48:56,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 79 transitions. [2022-10-17 10:48:56,824 INFO L240 hiAutomatonCegarLoop]: Abstraction has 53 states and 79 transitions. [2022-10-17 10:48:56,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:56,826 INFO L428 stractBuchiCegarLoop]: Abstraction has 53 states and 79 transitions. [2022-10-17 10:48:56,826 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-10-17 10:48:56,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 79 transitions. [2022-10-17 10:48:56,827 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:48:56,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:56,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:56,828 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:56,828 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:56,829 INFO L748 eck$LassoCheckResult]: Stem: 1337#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); 1308#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1341#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1313#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1314#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1316#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1317#L47-3 assume !false; 1338#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1315#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1327#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, base2flt_~m#1, base2flt_~e#1, base2flt_~res~0#1, base2flt_~__retres4~0#1;base2flt_~m#1 := base2flt_#in~m#1;base2flt_~e#1 := base2flt_#in~e#1;havoc base2flt_~res~0#1;havoc base2flt_~__retres4~0#1; 1334#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1331#L35-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 1332#L57-8 [2022-10-17 10:48:56,829 INFO L750 eck$LassoCheckResult]: Loop: 1332#L57-8 assume !false; 1324#L58-2 assume base2flt_~m#1 % 4294967296 >= 33554432; 1325#L59-2 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 1332#L57-8 [2022-10-17 10:48:56,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:56,830 INFO L85 PathProgramCache]: Analyzing trace with hash 359266186, now seen corresponding path program 1 times [2022-10-17 10:48:56,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:56,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189137391] [2022-10-17 10:48:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:56,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:56,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:56,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:56,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189137391] [2022-10-17 10:48:56,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189137391] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:56,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:56,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:48:56,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995750815] [2022-10-17 10:48:56,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:56,894 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:56,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:56,894 INFO L85 PathProgramCache]: Analyzing trace with hash 283142, now seen corresponding path program 1 times [2022-10-17 10:48:56,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:56,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004247282] [2022-10-17 10:48:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:56,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:56,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:56,908 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:56,943 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:56,943 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:56,944 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:56,944 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:56,944 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:56,944 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:56,944 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:56,944 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:56,944 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2022-10-17 10:48:56,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:56,945 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:56,946 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:56,957 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:57,048 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:57,048 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:57,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:57,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:57,049 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:57,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-10-17 10:48:57,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:57,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:57,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:57,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:57,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:57,120 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:57,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-10-17 10:48:57,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:57,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:57,167 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:57,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2022-10-17 10:48:57,170 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:57,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:57,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:57,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:57,170 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:57,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:57,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:57,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:57,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration4_Loop [2022-10-17 10:48:57,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:57,171 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:57,172 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:57,178 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:57,284 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:57,284 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:57,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:57,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:57,291 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:57,297 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 [2022-10-17 10:48:57,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-10-17 10:48:57,306 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:57,307 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:57,307 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:57,307 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:57,307 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:57,308 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:57,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:57,322 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:48:57,335 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:48:57,335 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:48:57,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:57,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:57,343 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:57,349 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:48:57,349 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:48:57,349 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:48:57,349 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:48:57,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-10-17 10:48:57,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:57,382 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:48:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:57,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:57,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:48:57,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:57,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:57,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:57,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:57,464 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 [2022-10-17 10:48:57,464 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 79 transitions. cyclomatic complexity: 31 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-10-17 10:48:57,494 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 79 transitions. cyclomatic complexity: 31. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 88 states and 133 transitions. Complement of second has 5 states. [2022-10-17 10:48:57,495 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 [2022-10-17 10:48:57,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-10-17 10:48:57,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2022-10-17 10:48:57,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 91 transitions. Stem has 13 letters. Loop has 3 letters. [2022-10-17 10:48:57,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:57,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 91 transitions. Stem has 16 letters. Loop has 3 letters. [2022-10-17 10:48:57,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:57,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 91 transitions. Stem has 13 letters. Loop has 6 letters. [2022-10-17 10:48:57,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:57,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 133 transitions. [2022-10-17 10:48:57,499 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2022-10-17 10:48:57,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 76 states and 112 transitions. [2022-10-17 10:48:57,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2022-10-17 10:48:57,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2022-10-17 10:48:57,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 76 states and 112 transitions. [2022-10-17 10:48:57,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:57,501 INFO L218 hiAutomatonCegarLoop]: Abstraction has 76 states and 112 transitions. [2022-10-17 10:48:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states and 112 transitions. [2022-10-17 10:48:57,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 56. [2022-10-17 10:48:57,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.4821428571428572) internal successors, (83), 55 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) [2022-10-17 10:48:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 83 transitions. [2022-10-17 10:48:57,505 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 83 transitions. [2022-10-17 10:48:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:57,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:48:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:48:57,506 INFO L87 Difference]: Start difference. First operand 56 states and 83 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) [2022-10-17 10:48:57,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:57,569 INFO L93 Difference]: Finished difference Result 58 states and 84 transitions. [2022-10-17 10:48:57,570 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 84 transitions. [2022-10-17 10:48:57,571 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:48:57,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 57 states and 83 transitions. [2022-10-17 10:48:57,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 50 [2022-10-17 10:48:57,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 50 [2022-10-17 10:48:57,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 83 transitions. [2022-10-17 10:48:57,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:57,573 INFO L218 hiAutomatonCegarLoop]: Abstraction has 57 states and 83 transitions. [2022-10-17 10:48:57,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 83 transitions. [2022-10-17 10:48:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2022-10-17 10:48:57,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 55 states have internal predecessors, (82), 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) [2022-10-17 10:48:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 82 transitions. [2022-10-17 10:48:57,577 INFO L240 hiAutomatonCegarLoop]: Abstraction has 56 states and 82 transitions. [2022-10-17 10:48:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:48:57,580 INFO L428 stractBuchiCegarLoop]: Abstraction has 56 states and 82 transitions. [2022-10-17 10:48:57,580 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-10-17 10:48:57,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 82 transitions. [2022-10-17 10:48:57,581 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2022-10-17 10:48:57,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:57,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:57,582 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:57,582 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:57,583 INFO L748 eck$LassoCheckResult]: Stem: 1660#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); 1628#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1629#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 1664#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 1634#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1635#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 1637#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 1638#L47-3 assume !false; 1662#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1650#L47-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1651#L47-3 assume !false; 1661#L38-1 assume base2flt_~e#1 <= -128;base2flt_~__retres4~0#1 := 0; 1636#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 1653#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 1657#L29-2 assume !(0 == base2flt_~m#1 % 4294967296); 1654#L35-2 assume base2flt_~m#1 % 4294967296 < 16777216; 1656#L47-5 [2022-10-17 10:48:57,583 INFO L750 eck$LassoCheckResult]: Loop: 1656#L47-5 assume !false; 1659#L38-2 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 1667#L47-4 assume base2flt_~m#1 % 4294967296 < 16777216; 1656#L47-5 [2022-10-17 10:48:57,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:57,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1105339009, now seen corresponding path program 1 times [2022-10-17 10:48:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:57,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379985851] [2022-10-17 10:48:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:57,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:57,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:57,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:57,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379985851] [2022-10-17 10:48:57,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379985851] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:48:57,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766873003] [2022-10-17 10:48:57,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:57,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:48:57,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:57,715 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:48:57,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-17 10:48:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:57,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:57,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:57,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:57,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:48:57,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:57,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766873003] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:48:57,865 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:48:57,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-10-17 10:48:57,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883154329] [2022-10-17 10:48:57,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:48:57,867 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:57,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:57,868 INFO L85 PathProgramCache]: Analyzing trace with hash 257383, now seen corresponding path program 1 times [2022-10-17 10:48:57,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:57,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823976528] [2022-10-17 10:48:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:57,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:57,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:57,888 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:57,918 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:57,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:57,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:57,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:57,918 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:57,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:57,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:57,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:57,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2022-10-17 10:48:57,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:57,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:57,920 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:57,926 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:58,002 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:58,002 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:58,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:58,003 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:58,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:58,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:58,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-10-17 10:48:58,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:58,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:58,067 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:58,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-10-17 10:48:58,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:58,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:58,187 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:58,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:58,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:58,191 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:58,191 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:58,191 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:58,191 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:58,191 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:58,191 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,192 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:58,192 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:58,192 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration5_Loop [2022-10-17 10:48:58,192 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:58,192 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:58,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:58,200 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:58,288 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:58,288 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:58,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:58,295 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:58,299 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 [2022-10-17 10:48:58,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:58,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:58,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:58,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:58,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:58,313 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:58,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:58,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-10-17 10:48:58,322 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:48:58,328 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:48:58,328 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:48:58,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:58,331 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:58,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:48:58,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:48:58,333 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:48:58,333 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-10-17 10:48:58,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-10-17 10:48:58,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:58,366 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:48:58,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:58,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:48:58,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:58,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:58,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:58,484 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 [2022-10-17 10:48:58,484 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 82 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:58,516 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 82 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 92 states and 137 transitions. Complement of second has 5 states. [2022-10-17 10:48:58,516 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 [2022-10-17 10:48:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:48:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2022-10-17 10:48:58,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 92 transitions. Stem has 16 letters. Loop has 3 letters. [2022-10-17 10:48:58,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:58,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 92 transitions. Stem has 19 letters. Loop has 3 letters. [2022-10-17 10:48:58,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:58,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 92 transitions. Stem has 16 letters. Loop has 6 letters. [2022-10-17 10:48:58,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:58,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 137 transitions. [2022-10-17 10:48:58,525 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2022-10-17 10:48:58,526 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 80 states and 116 transitions. [2022-10-17 10:48:58,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 68 [2022-10-17 10:48:58,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2022-10-17 10:48:58,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 116 transitions. [2022-10-17 10:48:58,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:58,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 80 states and 116 transitions. [2022-10-17 10:48:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 116 transitions. [2022-10-17 10:48:58,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 59. [2022-10-17 10:48:58,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.4576271186440677) internal successors, (86), 58 states have internal predecessors, (86), 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) [2022-10-17 10:48:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2022-10-17 10:48:58,532 INFO L240 hiAutomatonCegarLoop]: Abstraction has 59 states and 86 transitions. [2022-10-17 10:48:58,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:58,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:48:58,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:48:58,534 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2022-10-17 10:48:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:58,644 INFO L93 Difference]: Finished difference Result 113 states and 158 transitions. [2022-10-17 10:48:58,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 158 transitions. [2022-10-17 10:48:58,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-10-17 10:48:58,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 107 states and 152 transitions. [2022-10-17 10:48:58,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 88 [2022-10-17 10:48:58,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 88 [2022-10-17 10:48:58,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 152 transitions. [2022-10-17 10:48:58,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:58,649 INFO L218 hiAutomatonCegarLoop]: Abstraction has 107 states and 152 transitions. [2022-10-17 10:48:58,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 152 transitions. [2022-10-17 10:48:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 74. [2022-10-17 10:48:58,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 73 states have internal predecessors, (108), 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) [2022-10-17 10:48:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-10-17 10:48:58,661 INFO L240 hiAutomatonCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-10-17 10:48:58,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:48:58,663 INFO L428 stractBuchiCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-10-17 10:48:58,663 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-10-17 10:48:58,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 108 transitions. [2022-10-17 10:48:58,664 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2022-10-17 10:48:58,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:58,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:58,666 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, 1, 1, 1] [2022-10-17 10:48:58,666 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:58,673 INFO L748 eck$LassoCheckResult]: Stem: 2154#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); 2119#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2120#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2156#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2126#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2127#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2128#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2129#L47-3 assume !false; 2163#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2172#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2132#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2109#L76-15 assume !((1 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))) || ((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 1 == 16777216 * (128 + base2flt_~e#1))); 2113#L77-9 assume !(0 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))); 2114#L77-11 assume !((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 0 == 16777216 * (128 + base2flt_~e#1)); 2161#L77-13 assume !(base2flt_~m#1 >= 0 && 16777216 * (128 + base2flt_~e#1) >= 0);base2flt_~res~0#1 := base2flt_#t~nondet5#1;havoc base2flt_#t~nondet5#1; 2124#L77-15 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2125#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2140#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2146#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2106#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2107#L80-2 main_#t~ret24#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret24#1;havoc main_#t~ret24#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2155#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2121#L35-3 assume base2flt_~m#1 % 4294967296 < 16777216; 2122#L47-7 [2022-10-17 10:48:58,674 INFO L750 eck$LassoCheckResult]: Loop: 2122#L47-7 assume !false; 2111#L38-3 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2112#L47-6 assume base2flt_~m#1 % 4294967296 < 16777216; 2122#L47-7 [2022-10-17 10:48:58,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:58,675 INFO L85 PathProgramCache]: Analyzing trace with hash 488953666, now seen corresponding path program 1 times [2022-10-17 10:48:58,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:58,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238632712] [2022-10-17 10:48:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:58,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:58,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:58,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238632712] [2022-10-17 10:48:58,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238632712] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:58,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:58,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:48:58,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449906989] [2022-10-17 10:48:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:58,834 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:58,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash 361648, now seen corresponding path program 1 times [2022-10-17 10:48:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:58,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462960940] [2022-10-17 10:48:58,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:58,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:58,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:58,849 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:58,885 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:58,885 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:58,885 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:58,886 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:58,886 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:58,886 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,886 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:58,886 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:58,886 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2022-10-17 10:48:58,887 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:58,887 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:58,888 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:58,895 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:58,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:58,969 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:58,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:58,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:58,971 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:58,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:58,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:58,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-10-17 10:48:59,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:59,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:59,048 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:59,051 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:59,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:59,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-10-17 10:48:59,123 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:59,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:59,131 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:59,131 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:59,131 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:59,131 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:59,131 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:59,131 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,131 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:59,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:59,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration6_Loop [2022-10-17 10:48:59,132 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:59,132 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:59,132 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:59,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:59,210 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:59,210 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:48:59,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:59,211 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:59,220 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 [2022-10-17 10:48:59,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:48:59,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:48:59,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:48:59,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:48:59,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:48:59,231 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:48:59,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:48:59,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-10-17 10:48:59,243 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:48:59,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:48:59,256 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:48:59,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:59,258 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:59,260 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:48:59,260 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:48:59,260 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:48:59,260 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = 2*ULTIMATE.start_base2flt_~e#1 + 255 Supporting invariants [] [2022-10-17 10:48:59,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-10-17 10:48:59,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:59,304 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:48:59,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:59,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:48:59,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:59,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:48:59,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:48:59,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:59,408 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 [2022-10-17 10:48:59,408 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 108 transitions. cyclomatic complexity: 39 Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-10-17 10:48:59,415 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 108 transitions. cyclomatic complexity: 39. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 78 states and 112 transitions. Complement of second has 4 states. [2022-10-17 10:48:59,416 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 [2022-10-17 10:48:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2022-10-17 10:48:59,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2022-10-17 10:48:59,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 23 letters. Loop has 3 letters. [2022-10-17 10:48:59,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:59,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 26 letters. Loop has 3 letters. [2022-10-17 10:48:59,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:59,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 23 letters. Loop has 6 letters. [2022-10-17 10:48:59,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:48:59,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 112 transitions. [2022-10-17 10:48:59,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:48:59,421 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 71 states and 104 transitions. [2022-10-17 10:48:59,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2022-10-17 10:48:59,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2022-10-17 10:48:59,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 71 states and 104 transitions. [2022-10-17 10:48:59,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:59,422 INFO L218 hiAutomatonCegarLoop]: Abstraction has 71 states and 104 transitions. [2022-10-17 10:48:59,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states and 104 transitions. [2022-10-17 10:48:59,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-10-17 10:48:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 70 states have internal predecessors, (104), 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) [2022-10-17 10:48:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 104 transitions. [2022-10-17 10:48:59,425 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 104 transitions. [2022-10-17 10:48:59,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:59,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:48:59,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:48:59,427 INFO L87 Difference]: Start difference. First operand 71 states and 104 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2022-10-17 10:48:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:59,516 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2022-10-17 10:48:59,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 89 states and 127 transitions. [2022-10-17 10:48:59,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:48:59,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 89 states to 89 states and 127 transitions. [2022-10-17 10:48:59,518 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2022-10-17 10:48:59,518 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2022-10-17 10:48:59,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 89 states and 127 transitions. [2022-10-17 10:48:59,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-10-17 10:48:59,519 INFO L218 hiAutomatonCegarLoop]: Abstraction has 89 states and 127 transitions. [2022-10-17 10:48:59,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states and 127 transitions. [2022-10-17 10:48:59,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 76. [2022-10-17 10:48:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 76 states have (on average 1.4473684210526316) internal successors, (110), 75 states have internal predecessors, (110), 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) [2022-10-17 10:48:59,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 110 transitions. [2022-10-17 10:48:59,523 INFO L240 hiAutomatonCegarLoop]: Abstraction has 76 states and 110 transitions. [2022-10-17 10:48:59,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:48:59,524 INFO L428 stractBuchiCegarLoop]: Abstraction has 76 states and 110 transitions. [2022-10-17 10:48:59,524 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-10-17 10:48:59,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 110 transitions. [2022-10-17 10:48:59,525 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-10-17 10:48:59,525 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-10-17 10:48:59,525 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-10-17 10:48:59,526 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, 1, 1, 1] [2022-10-17 10:48:59,526 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-10-17 10:48:59,527 INFO L748 eck$LassoCheckResult]: Stem: 2561#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); 2527#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~ret22#1, main_#t~ret23#1, main_#t~ret24#1, main_#t~ret25#1, main_#t~ret26#1, main_~a~0#1, main_~ma~2#1, main_~ea~2#1, main_~b~0#1, main_~mb~2#1, main_~eb~2#1, main_~r_mul~0#1, main_~zero~0#1, main_~one~0#1, main_~sa~0#1, main_~tmp~2#1, main_~tmp___0~0#1, main_~tmp___1~0#1, main_~__retres16~0#1;havoc main_~a~0#1;main_~ma~2#1 := main_#t~nondet18#1;havoc main_#t~nondet18#1;main_~ea~2#1 := main_#t~nondet19#1;havoc main_#t~nondet19#1;havoc main_~b~0#1;main_~mb~2#1 := main_#t~nondet20#1;havoc main_#t~nondet20#1;main_~eb~2#1 := main_#t~nondet21#1;havoc main_#t~nondet21#1;havoc main_~r_mul~0#1;havoc main_~zero~0#1;havoc main_~one~0#1;havoc main_~sa~0#1;havoc main_~tmp~2#1;havoc main_~tmp___0~0#1;havoc main_~tmp___1~0#1;havoc main_~__retres16~0#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 0, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2528#L29 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2563#L79 base2flt_#res#1 := base2flt_~__retres4~0#1; 2533#L80 main_#t~ret22#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~zero~0#1 := main_#t~ret22#1;havoc main_#t~ret22#1;assume { :begin_inline_base2flt } true;base2flt_#in~m#1, base2flt_#in~e#1 := 1, 0;havoc base2flt_#res#1;havoc base2flt_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2534#L29-1 assume !(0 == base2flt_~m#1 % 4294967296); 2535#L35-1 assume base2flt_~m#1 % 4294967296 < 16777216; 2536#L47-3 assume !false; 2571#L38-1 assume !(base2flt_~e#1 <= -128);base2flt_~e#1 := base2flt_~e#1 - 1;base2flt_~m#1 := 2 * base2flt_~m#1; 2580#L47-2 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2581#L73-1 assume 0 == base2flt_~m#1 || 0 == ~bitwiseComplement(16777216);base2flt_~m#1 := 0; 2591#L76-15 assume !((1 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))) || ((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 1 == 16777216 * (128 + base2flt_~e#1))); 2590#L77-9 assume !(0 == base2flt_~m#1 && (0 == 16777216 * (128 + base2flt_~e#1) || 1 == 16777216 * (128 + base2flt_~e#1))); 2589#L77-11 assume !((0 == base2flt_~m#1 || 1 == base2flt_~m#1) && 0 == 16777216 * (128 + base2flt_~e#1)); 2570#L77-13 assume base2flt_~m#1 >= 0 && 16777216 * (128 + base2flt_~e#1) >= 0;abs_77 := (if base2flt_~m#1 < 16777216 * (128 + base2flt_~e#1) then 16777216 * (128 + base2flt_~e#1) else base2flt_~m#1);assume base2flt_~m#1 >= 0 && 16777216 * (128 + base2flt_~e#1) >= 0;assume base2flt_~res~0#1 >= abs_77; 2531#L77-15 base2flt_~__retres4~0#1 := base2flt_~res~0#1; 2532#L79-1 base2flt_#res#1 := base2flt_~__retres4~0#1; 2549#L80-1 main_#t~ret23#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~one~0#1 := main_#t~ret23#1;havoc main_#t~ret23#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2553#L29-2 assume 0 == base2flt_~m#1 % 4294967296;base2flt_~__retres4~0#1 := 0; 2519#L79-2 base2flt_#res#1 := base2flt_~__retres4~0#1; 2520#L80-2 main_#t~ret24#1 := base2flt_#res#1;assume { :end_inline_base2flt } true;main_~a~0#1 := main_#t~ret24#1;havoc main_#t~ret24#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_#t~nondet4#1, base2flt_#t~nondet5#1, 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; 2562#L29-3 assume !(0 == base2flt_~m#1 % 4294967296); 2529#L35-3 assume !(base2flt_~m#1 % 4294967296 < 16777216); 2530#L57-11 [2022-10-17 10:48:59,527 INFO L750 eck$LassoCheckResult]: Loop: 2530#L57-11 assume !false; 2537#L58-3 assume base2flt_~m#1 % 4294967296 >= 33554432; 2538#L59-3 assume !(base2flt_~e#1 >= 127);base2flt_~e#1 := 1 + base2flt_~e#1;base2flt_~m#1 := base2flt_~m#1 / 2; 2530#L57-11 [2022-10-17 10:48:59,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:59,528 INFO L85 PathProgramCache]: Analyzing trace with hash -191104678, now seen corresponding path program 1 times [2022-10-17 10:48:59,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:59,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57598998] [2022-10-17 10:48:59,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:59,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:59,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:59,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57598998] [2022-10-17 10:48:59,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57598998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:59,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:59,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:48:59,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308187774] [2022-10-17 10:48:59,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:59,638 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-10-17 10:48:59,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:59,639 INFO L85 PathProgramCache]: Analyzing trace with hash 387407, now seen corresponding path program 1 times [2022-10-17 10:48:59,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:59,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743983231] [2022-10-17 10:48:59,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:59,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:59,645 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:59,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:59,683 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:59,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:59,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:59,684 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:59,684 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-10-17 10:48:59,684 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,684 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:59,684 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:59,684 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2022-10-17 10:48:59,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:59,685 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:59,686 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:59,692 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:59,792 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:48:59,792 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-10-17 10:48:59,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:59,793 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:59,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-10-17 10:48:59,797 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-10-17 10:48:59,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:59,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:59,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:59,859 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:59,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-10-17 10:48:59,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-10-17 10:48:59,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-10-17 10:48:59,931 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-10-17 10:48:59,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-10-17 10:48:59,940 INFO L210 LassoAnalysis]: Preferences: [2022-10-17 10:48:59,940 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-10-17 10:48:59,940 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-10-17 10:48:59,940 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-10-17 10:48:59,941 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-10-17 10:48:59,941 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:48:59,941 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-10-17 10:48:59,941 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-10-17 10:48:59,941 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_2a.c.cil.c_Iteration7_Loop [2022-10-17 10:48:59,941 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-10-17 10:48:59,941 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-10-17 10:48:59,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:48:59,949 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-10-17 10:49:00,048 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-10-17 10:49:00,048 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-10-17 10:49:00,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:49:00,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:49:00,050 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:49:00,059 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 [2022-10-17 10:49:00,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-10-17 10:49:00,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-10-17 10:49:00,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-10-17 10:49:00,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-10-17 10:49:00,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-10-17 10:49:00,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-10-17 10:49:00,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-10-17 10:49:00,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-10-17 10:49:00,123 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-10-17 10:49:00,125 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-10-17 10:49:00,125 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-10-17 10:49:00,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-10-17 10:49:00,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:49:00,142 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-10-17 10:49:00,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2022-10-17 10:49:00,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-10-17 10:49:00,175 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-10-17 10:49:00,175 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-10-17 10:49:00,175 INFO L513 LassoAnalysis]: Proved termination. [2022-10-17 10:49:00,175 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e#1) = -2*ULTIMATE.start_base2flt_~e#1 + 253 Supporting invariants [] [2022-10-17 10:49:00,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-10-17 10:49:00,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-10-17 10:49:00,205 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-10-17 10:49:00,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:49:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:49:00,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:49:00,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:49:00,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:49:00,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-17 10:49:00,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:49:00,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:49:00,296 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 [2022-10-17 10:49:00,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 110 transitions. cyclomatic complexity: 38 Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-10-17 10:49:00,303 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 110 transitions. cyclomatic complexity: 38. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 79 states and 114 transitions. Complement of second has 4 states. [2022-10-17 10:49:00,304 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 [2022-10-17 10:49:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2022-10-17 10:49:00,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2022-10-17 10:49:00,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 69 transitions. Stem has 23 letters. Loop has 3 letters. [2022-10-17 10:49:00,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:49:00,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 69 transitions. Stem has 26 letters. Loop has 3 letters. [2022-10-17 10:49:00,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:49:00,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 69 transitions. Stem has 23 letters. Loop has 6 letters. [2022-10-17 10:49:00,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-10-17 10:49:00,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 114 transitions. [2022-10-17 10:49:00,309 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:49:00,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 0 states and 0 transitions. [2022-10-17 10:49:00,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:49:00,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:49:00,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:49:00,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:49:00,310 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:49:00,310 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:49:00,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:49:00,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:49:00,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:49:00,311 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2022-10-17 10:49:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:49:00,311 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-10-17 10:49:00,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2022-10-17 10:49:00,312 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:49:00,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:49:00,312 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-10-17 10:49:00,312 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-10-17 10:49:00,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-10-17 10:49:00,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:49:00,313 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:49:00,313 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:49:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:49:00,314 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:49:00,314 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-10-17 10:49:00,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:49:00,315 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-10-17 10:49:00,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-10-17 10:49:00,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.10 10:49:00 BoogieIcfgContainer [2022-10-17 10:49:00,323 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-10-17 10:49:00,324 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:49:00,324 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:49:00,325 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:49:00,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:52" (3/4) ... [2022-10-17 10:49:00,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:49:00,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:49:00,330 INFO L158 Benchmark]: Toolchain (without parser) took 9458.88ms. Allocated memory was 109.1MB in the beginning and 184.5MB in the end (delta: 75.5MB). Free memory was 63.0MB in the beginning and 141.1MB in the end (delta: -78.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:49:00,331 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory was 79.4MB in the beginning and 79.3MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:49:00,332 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.09ms. Allocated memory is still 109.1MB. Free memory was 62.8MB in the beginning and 77.8MB in the end (delta: -15.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:49:00,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.29ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 75.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:49:00,333 INFO L158 Benchmark]: Boogie Preprocessor took 112.10ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:49:00,333 INFO L158 Benchmark]: RCFGBuilder took 1230.53ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 39.7MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-10-17 10:49:00,334 INFO L158 Benchmark]: BuchiAutomizer took 7569.80ms. Allocated memory was 109.1MB in the beginning and 184.5MB in the end (delta: 75.5MB). Free memory was 39.7MB in the beginning and 141.1MB in the end (delta: -101.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:49:00,334 INFO L158 Benchmark]: Witness Printer took 5.59ms. Allocated memory is still 184.5MB. Free memory is still 141.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:49:00,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory was 79.4MB in the beginning and 79.3MB in the end (delta: 90.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.09ms. Allocated memory is still 109.1MB. Free memory was 62.8MB in the beginning and 77.8MB in the end (delta: -15.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.29ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 75.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 112.10ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 72.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1230.53ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 39.7MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 7569.80ms. Allocated memory was 109.1MB in the beginning and 184.5MB in the end (delta: 75.5MB). Free memory was 39.7MB in the beginning and 141.1MB in the end (delta: -101.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.59ms. Allocated memory is still 184.5MB. Free memory is still 141.1MB. 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 + 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. 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. 6 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.5s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 5.2s. Construction of modules took 0.5s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 10. Automata minimization 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 208 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, 912 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 905 mSDsluCounter, 1375 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 322 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 1053 mSDtfsCounter, 403 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: unsat Degree: 0 Time: 37ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-10-17 10:49:00,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-10-17 10:49:00,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-17 10:49:00,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea16b741-d395-42fc-b784-65a0f7073c43/bin/uautomizer-J5u9QxTXDZ/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