./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be --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 1f6e3ea051ad39822c46ff9cb12f1fe0324fb4c12be74e4be841016f2db74b5c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:17:29,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:17:29,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:17:29,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:17:29,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:17:29,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:17:29,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:17:29,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:17:29,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:17:29,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:17:29,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:17:29,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:17:29,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:17:29,516 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:17:29,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:17:29,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:17:29,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:17:29,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:17:29,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:17:29,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:17:29,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:17:29,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:17:29,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:17:29,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:17:29,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:17:29,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:17:29,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:17:29,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:17:29,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:17:29,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:17:29,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:17:29,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:17:29,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:17:29,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:17:29,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:17:29,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:17:29,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:17:29,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:17:29,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:17:29,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:17:29,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:17:29,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:17:29,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:17:29,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:17:29,662 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:17:29,662 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:17:29,664 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:17:29,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:17:29,666 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:17:29,666 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:17:29,666 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:17:29,666 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:17:29,668 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:17:29,668 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:17:29,669 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:17:29,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:17:29,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:17:29,670 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:17:29,670 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:17:29,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:17:29,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:17:29,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:17:29,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:17:29,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:17:29,672 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:17:29,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:17:29,673 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:17:29,673 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:17:29,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:17:29,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:17:29,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:17:29,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:17:29,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:17:29,678 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:17:29,679 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:17:29,679 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_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f6e3ea051ad39822c46ff9cb12f1fe0324fb4c12be74e4be841016f2db74b5c [2021-10-21 20:17:30,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:17:30,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:17:30,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:17:30,079 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:17:30,081 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:17:30,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-10-21 20:17:30,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/data/5037b2193/7fffae074dce4cc2a7900e8d9a0b1109/FLAG189b0000d [2021-10-21 20:17:30,855 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:17:30,856 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2021-10-21 20:17:30,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/data/5037b2193/7fffae074dce4cc2a7900e8d9a0b1109/FLAG189b0000d [2021-10-21 20:17:31,115 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/data/5037b2193/7fffae074dce4cc2a7900e8d9a0b1109 [2021-10-21 20:17:31,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:17:31,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:17:31,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:17:31,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:17:31,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:17:31,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eab09d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31, skipping insertion in model container [2021-10-21 20:17:31,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:17:31,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:17:31,359 WARN L228 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_ef0bbed2-4fcc-469e-866e-dd00caa15699/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[425,438] [2021-10-21 20:17:31,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:17:31,467 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:17:31,480 WARN L228 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_ef0bbed2-4fcc-469e-866e-dd00caa15699/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[425,438] [2021-10-21 20:17:31,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:17:31,534 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:17:31,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31 WrapperNode [2021-10-21 20:17:31,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:17:31,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:17:31,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:17:31,537 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:17:31,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:17:31,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:17:31,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:17:31,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:17:31,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:17:31,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:17:31,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:17:31,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:17:31,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (1/1) ... [2021-10-21 20:17:31,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:31,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:31,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:31,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:17:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:17:31,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:17:31,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:17:31,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:17:32,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:17:32,334 INFO L299 CfgBuilder]: Removed 34 assume(true) statements. [2021-10-21 20:17:32,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:17:32 BoogieIcfgContainer [2021-10-21 20:17:32,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:17:32,338 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:17:32,338 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:17:32,360 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:17:32,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:17:32,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:17:31" (1/3) ... [2021-10-21 20:17:32,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1212e7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:17:32, skipping insertion in model container [2021-10-21 20:17:32,378 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:17:32,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:17:31" (2/3) ... [2021-10-21 20:17:32,379 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1212e7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:17:32, skipping insertion in model container [2021-10-21 20:17:32,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:17:32,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:17:32" (3/3) ... [2021-10-21 20:17:32,383 INFO L389 chiAutomizerObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2021-10-21 20:17:32,446 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:17:32,446 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:17:32,447 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:17:32,447 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:17:32,447 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:17:32,447 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:17:32,448 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:17:32,448 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:17:32,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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) [2021-10-21 20:17:32,499 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-21 20:17:32,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:32,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:32,507 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:17:32,507 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:17:32,507 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:17:32,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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) [2021-10-21 20:17:32,517 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2021-10-21 20:17:32,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:32,517 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:32,518 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-21 20:17:32,518 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:17:32,527 INFO L791 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 46#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 36#L21true assume !(0 == base2flt_~m % 4294967296); 21#L27true assume !(base2flt_~m % 4294967296 < 16777216); 43#L49-2true [2021-10-21 20:17:32,527 INFO L793 eck$LassoCheckResult]: Loop: 43#L49-2true assume !false; 47#L50true assume base2flt_~m % 4294967296 >= 33554432; 42#L51true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 43#L49-2true [2021-10-21 20:17:32,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:32,535 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2021-10-21 20:17:32,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:32,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410984487] [2021-10-21 20:17:32,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:32,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:32,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:17:32,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:17:32,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410984487] [2021-10-21 20:17:32,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410984487] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:17:32,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:17:32,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:17:32,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166315827] [2021-10-21 20:17:32,824 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 20:17:32,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:32,833 INFO L82 PathProgramCache]: Analyzing trace with hash 74612, now seen corresponding path program 1 times [2021-10-21 20:17:32,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:32,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488178483] [2021-10-21 20:17:32,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:32,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:32,857 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:32,887 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:32,947 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:32,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:32,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:32,949 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:32,949 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:17:32,949 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:32,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:32,950 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:32,950 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2021-10-21 20:17:32,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:32,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:32,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:32,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:33,130 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:33,131 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:17:33,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:33,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:33,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:33,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:33,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:33,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 20:17:33,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:33,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:33,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:33,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:33,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 20:17:33,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:17:33,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:33,282 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:17:33,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:33,291 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:33,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:33,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:33,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:33,292 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:17:33,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:33,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:33,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:33,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration1_Loop [2021-10-21 20:17:33,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:33,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:33,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:33,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:33,401 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:33,406 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:17:33,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:33,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:33,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:33,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 20:17:33,416 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 [2021-10-21 20:17:33,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:33,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:33,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:33,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:33,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:33,440 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:33,440 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:33,450 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:17:33,460 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:17:33,468 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:17:33,470 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:33,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:33,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:33,481 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:17:33,481 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:17:33,482 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:17:33,483 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-21 20:17:33,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 20:17:33,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:33,512 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:17:33,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:33,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:17:33,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:33,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:17:33,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:17:33,667 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:17:33,671 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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) [2021-10-21 20:17:33,807 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 79 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 78 states have internal predecessors, (127), 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 233 states and 361 transitions. Complement of second has 6 states. [2021-10-21 20:17:33,808 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 [2021-10-21 20:17:33,810 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) [2021-10-21 20:17:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 236 transitions. [2021-10-21 20:17:33,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-21 20:17:33,817 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:33,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-21 20:17:33,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:33,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 236 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-21 20:17:33,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:33,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 233 states and 361 transitions. [2021-10-21 20:17:33,844 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2021-10-21 20:17:33,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 233 states to 57 states and 82 transitions. [2021-10-21 20:17:33,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53 [2021-10-21 20:17:33,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2021-10-21 20:17:33,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 82 transitions. [2021-10-21 20:17:33,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:17:33,859 INFO L681 BuchiCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-21 20:17:33,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 82 transitions. [2021-10-21 20:17:33,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2021-10-21 20:17:33,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.5217391304347827) internal successors, (70), 45 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:17:33,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 70 transitions. [2021-10-21 20:17:33,899 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 70 transitions. [2021-10-21 20:17:33,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:17:33,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:17:33,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:17:33,907 INFO L87 Difference]: Start difference. First operand 46 states and 70 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) [2021-10-21 20:17:33,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:17:33,966 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2021-10-21 20:17:33,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:17:33,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-21 20:17:33,971 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-21 20:17:33,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 31 transitions. [2021-10-21 20:17:33,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-21 20:17:33,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-21 20:17:33,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 31 transitions. [2021-10-21 20:17:33,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:17:33,973 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-21 20:17:33,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 31 transitions. [2021-10-21 20:17:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-21 20:17:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 23 states have internal predecessors, (31), 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) [2021-10-21 20:17:33,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2021-10-21 20:17:33,979 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-21 20:17:33,980 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 31 transitions. [2021-10-21 20:17:33,980 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:17:33,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 31 transitions. [2021-10-21 20:17:33,981 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-21 20:17:33,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:33,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:33,982 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:33,982 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:17:33,983 INFO L791 eck$LassoCheckResult]: Stem: 435#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 436#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 444#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 439#L71 base2flt_#res := base2flt_~__retres4~0; 440#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 449#L21-1 assume !(0 == base2flt_~m % 4294967296); 448#L27-1 assume !(base2flt_~m % 4294967296 < 16777216); 441#L49-5 [2021-10-21 20:17:33,983 INFO L793 eck$LassoCheckResult]: Loop: 441#L49-5 assume !false; 442#L50-1 assume base2flt_~m % 4294967296 >= 33554432; 443#L51-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 441#L49-5 [2021-10-21 20:17:33,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:33,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627809, now seen corresponding path program 1 times [2021-10-21 20:17:33,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:33,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341150656] [2021-10-21 20:17:33,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:33,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:34,037 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:34,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:34,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:34,091 INFO L82 PathProgramCache]: Analyzing trace with hash 137171, now seen corresponding path program 1 times [2021-10-21 20:17:34,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:34,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233717142] [2021-10-21 20:17:34,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:34,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:34,107 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:34,133 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:34,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:34,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1013979123, now seen corresponding path program 1 times [2021-10-21 20:17:34,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:34,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836946789] [2021-10-21 20:17:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:34,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:34,180 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:34,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:34,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:34,294 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:34,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:34,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:34,295 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:34,295 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:17:34,295 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,296 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:34,296 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:34,296 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2021-10-21 20:17:34,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:34,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:34,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:34,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:34,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:34,420 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:17:34,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:34,422 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:34,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 20:17:34,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:34,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:34,489 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:17:34,489 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=-1} Honda state: {ULTIMATE.start_base2flt_~m=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:17:34,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:34,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:34,501 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:34,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:34,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:34,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 20:17:34,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:34,579 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:34,580 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:34,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 20:17:34,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:17:34,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:34,641 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:17:34,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:34,647 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:34,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:34,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:34,648 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:34,648 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:17:34,648 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,648 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:34,648 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:34,648 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration2_Loop [2021-10-21 20:17:34,648 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:34,648 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:34,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:34,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:34,764 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:34,765 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:17:34,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:34,767 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:34,774 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 [2021-10-21 20:17:34,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:34,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:34,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:34,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:34,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:34,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:34,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:34,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 20:17:34,806 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:17:34,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:34,852 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:34,856 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:34,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:17:34,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:34,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:34,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:34,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:34,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:34,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:34,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:34,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 20:17:34,889 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:17:34,902 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:17:34,902 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:17:34,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:34,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:34,904 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:34,911 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:17:34,911 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:17:34,911 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:17:34,911 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-21 20:17:34,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 20:17:34,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:34,961 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:17:34,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:35,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:17:35,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:35,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:17:35,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:35,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:17:35,089 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:17:35,089 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11 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) [2021-10-21 20:17:35,118 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 31 transitions. cyclomatic complexity: 11. 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 41 states and 51 transitions. Complement of second has 5 states. [2021-10-21 20:17:35,121 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 [2021-10-21 20:17:35,122 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) [2021-10-21 20:17:35,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2021-10-21 20:17:35,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-21 20:17:35,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:35,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 20:17:35,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:35,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-21 20:17:35,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:35,124 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2021-10-21 20:17:35,125 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2021-10-21 20:17:35,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 38 states and 47 transitions. [2021-10-21 20:17:35,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2021-10-21 20:17:35,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2021-10-21 20:17:35,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 47 transitions. [2021-10-21 20:17:35,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:17:35,126 INFO L681 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-10-21 20:17:35,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 47 transitions. [2021-10-21 20:17:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2021-10-21 20:17:35,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-10-21 20:17:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-10-21 20:17:35,130 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-21 20:17:35,130 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-21 20:17:35,130 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:17:35,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-10-21 20:17:35,130 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2021-10-21 20:17:35,131 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:35,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:35,131 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:35,131 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:17:35,131 INFO L791 eck$LassoCheckResult]: Stem: 550#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 551#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 562#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 554#L71 base2flt_#res := base2flt_~__retres4~0; 555#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 567#L21-1 assume !(0 == base2flt_~m % 4294967296); 566#L27-1 assume base2flt_~m % 4294967296 < 16777216; 547#L39-3 [2021-10-21 20:17:35,132 INFO L793 eck$LassoCheckResult]: Loop: 547#L39-3 assume !false; 548#L30-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 565#L39-2 assume base2flt_~m % 4294967296 < 16777216; 547#L39-3 [2021-10-21 20:17:35,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:35,132 INFO L82 PathProgramCache]: Analyzing trace with hash 1806627783, now seen corresponding path program 1 times [2021-10-21 20:17:35,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:35,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60830653] [2021-10-21 20:17:35,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:35,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:35,171 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:35,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:35,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:35,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:35,215 INFO L82 PathProgramCache]: Analyzing trace with hash 111412, now seen corresponding path program 1 times [2021-10-21 20:17:35,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:35,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609967430] [2021-10-21 20:17:35,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:35,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:35,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:35,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:35,238 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:35,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:35,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1013178798, now seen corresponding path program 1 times [2021-10-21 20:17:35,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:35,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072935797] [2021-10-21 20:17:35,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:35,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:35,257 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:35,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:35,323 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:35,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:35,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:35,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:35,324 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:17:35,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:35,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:35,324 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2021-10-21 20:17:35,324 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:35,324 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:35,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:35,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:35,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:35,420 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:17:35,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:35,425 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:35,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:35,466 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:35,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 20:17:35,542 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 20:17:35,542 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_base2flt_~m=0} Honda state: {ULTIMATE.start_base2flt_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 20:17:35,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:35,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:35,552 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:35,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 20:17:35,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:35,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:35,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:35,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:35,659 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:35,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 20:17:35,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:17:35,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:35,713 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:17:35,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-21 20:17:35,720 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:35,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:35,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:35,720 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:35,720 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:17:35,720 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,720 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:35,720 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:35,733 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration3_Loop [2021-10-21 20:17:35,733 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:35,733 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:35,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:35,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:35,840 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:35,840 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:17:35,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:35,842 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:35,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 20:17:35,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 20:17:35,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:35,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:35,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:35,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:35,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:35,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:35,868 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:35,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:35,871 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 20:17:35,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:35,916 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:35,918 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:35,922 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 [2021-10-21 20:17:35,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:35,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:35,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:35,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:35,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:35,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:35,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:35,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 20:17:35,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:17:35,960 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:17:35,960 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:17:35,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:35,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:35,962 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:35,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:17:35,966 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:17:35,967 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:17:35,967 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-21 20:17:35,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 20:17:36,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:36,015 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:17:36,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:36,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:17:36,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:36,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:36,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:17:36,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:17:36,175 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:17:36,175 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12 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) [2021-10-21 20:17:36,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 12. 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 45 states and 56 transitions. Complement of second has 5 states. [2021-10-21 20:17:36,192 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 [2021-10-21 20:17:36,192 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) [2021-10-21 20:17:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2021-10-21 20:17:36,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-21 20:17:36,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:36,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 20:17:36,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:36,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 34 transitions. Stem has 7 letters. Loop has 6 letters. [2021-10-21 20:17:36,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:36,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 56 transitions. [2021-10-21 20:17:36,198 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2021-10-21 20:17:36,200 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 52 transitions. [2021-10-21 20:17:36,200 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-21 20:17:36,201 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2021-10-21 20:17:36,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 52 transitions. [2021-10-21 20:17:36,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:17:36,201 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2021-10-21 20:17:36,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 52 transitions. [2021-10-21 20:17:36,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2021-10-21 20:17:36,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 30 states have (on average 1.3) internal successors, (39), 29 states have internal predecessors, (39), 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) [2021-10-21 20:17:36,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2021-10-21 20:17:36,214 INFO L704 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-21 20:17:36,214 INFO L587 BuchiCegarLoop]: Abstraction has 30 states and 39 transitions. [2021-10-21 20:17:36,214 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 20:17:36,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 30 states and 39 transitions. [2021-10-21 20:17:36,215 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2021-10-21 20:17:36,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:36,216 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:36,216 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:36,217 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:17:36,217 INFO L791 eck$LassoCheckResult]: Stem: 675#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 676#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 687#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 679#L71 base2flt_#res := base2flt_~__retres4~0; 680#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 693#L21-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 678#L71-1 base2flt_#res := base2flt_~__retres4~0; 670#L72-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 671#L21-2 assume !(0 == base2flt_~m % 4294967296); 688#L27-2 assume !(base2flt_~m % 4294967296 < 16777216); 665#L49-8 [2021-10-21 20:17:36,217 INFO L793 eck$LassoCheckResult]: Loop: 665#L49-8 assume !false; 674#L50-2 assume base2flt_~m % 4294967296 >= 33554432; 664#L51-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 665#L49-8 [2021-10-21 20:17:36,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:36,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956351, now seen corresponding path program 1 times [2021-10-21 20:17:36,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:36,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654016732] [2021-10-21 20:17:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:36,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:36,252 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:36,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:36,296 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:36,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:36,297 INFO L82 PathProgramCache]: Analyzing trace with hash 199730, now seen corresponding path program 1 times [2021-10-21 20:17:36,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:36,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537947893] [2021-10-21 20:17:36,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:36,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:36,304 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:36,329 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:36,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:36,330 INFO L82 PathProgramCache]: Analyzing trace with hash 542600884, now seen corresponding path program 1 times [2021-10-21 20:17:36,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:36,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283372575] [2021-10-21 20:17:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:36,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:36,348 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:36,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:36,402 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:36,403 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:36,403 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:36,403 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:36,403 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:17:36,403 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:36,403 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:36,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:36,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2021-10-21 20:17:36,404 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:36,404 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:36,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:36,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:36,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:36,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:17:36,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:36,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:36,505 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:36,511 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:36,511 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:36,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 20:17:36,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:36,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:36,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:36,581 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:36,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:17:36,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:36,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 20:17:36,665 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:17:36,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:36,670 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:36,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:36,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:36,670 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:36,670 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:17:36,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:36,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:36,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:36,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration4_Loop [2021-10-21 20:17:36,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:36,671 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:36,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:36,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:36,762 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:36,762 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:17:36,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:36,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:36,766 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:36,785 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 [2021-10-21 20:17:36,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 20:17:36,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:36,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:36,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:36,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:36,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:36,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:36,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:36,813 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:17:36,826 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:17:36,826 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:17:36,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:36,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:36,828 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:36,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:17:36,835 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:17:36,835 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:17:36,835 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2021-10-21 20:17:36,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 20:17:36,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:36,882 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:17:36,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:36,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:17:36,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:36,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:17:36,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:17:36,992 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 20:17:36,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13 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) [2021-10-21 20:17:36,999 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 30 states and 39 transitions. cyclomatic complexity: 13. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 43 transitions. Complement of second has 4 states. [2021-10-21 20:17:37,000 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 [2021-10-21 20:17:37,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:17:37,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 31 transitions. [2021-10-21 20:17:37,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 20:17:37,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:37,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-21 20:17:37,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:37,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 31 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 20:17:37,003 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:37,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2021-10-21 20:17:37,004 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:17:37,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 27 states and 35 transitions. [2021-10-21 20:17:37,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-10-21 20:17:37,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-10-21 20:17:37,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2021-10-21 20:17:37,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 20:17:37,008 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-21 20:17:37,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2021-10-21 20:17:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-21 20:17:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-10-21 20:17:37,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-10-21 20:17:37,016 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-21 20:17:37,016 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-10-21 20:17:37,016 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-21 20:17:37,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2021-10-21 20:17:37,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-21 20:17:37,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:17:37,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:17:37,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:17:37,018 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-21 20:17:37,019 INFO L791 eck$LassoCheckResult]: Stem: 793#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(24);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 794#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~ret11, main_#t~ret12, main_#t~ret13, main_#t~ret14, main_#t~ret15, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add1~0, main_~r_add2~0, main_~zero~0, main_~tmp~2, main_~tmp___0~0, main_~__retres14~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet7;havoc main_#t~nondet7;main_~ea~2 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~b~0;main_~mb~2 := main_#t~nondet9;havoc main_#t~nondet9;main_~eb~2 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~r_add1~0;havoc main_~r_add2~0;havoc main_~zero~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~__retres14~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 805#L21 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 797#L71 base2flt_#res := base2flt_~__retres4~0; 798#L72 main_#t~ret11 := base2flt_#res;main_~zero~0 := main_#t~ret11;havoc main_#t~ret11;base2flt_#in~m, base2flt_#in~e := main_~ma~2, main_~ea~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 811#L21-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 796#L71-1 base2flt_#res := base2flt_~__retres4~0; 791#L72-1 main_#t~ret12 := base2flt_#res;main_~a~0 := main_#t~ret12;havoc main_#t~ret12;base2flt_#in~m, base2flt_#in~e := main_~mb~2, main_~eb~2;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 792#L21-2 assume !(0 == base2flt_~m % 4294967296); 806#L27-2 assume base2flt_~m % 4294967296 < 16777216; 807#L39-5 [2021-10-21 20:17:37,019 INFO L793 eck$LassoCheckResult]: Loop: 807#L39-5 assume !false; 789#L30-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 790#L39-4 assume base2flt_~m % 4294967296 < 16777216; 807#L39-5 [2021-10-21 20:17:37,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:37,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1012956325, now seen corresponding path program 1 times [2021-10-21 20:17:37,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:37,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130816855] [2021-10-21 20:17:37,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:37,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:37,056 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:37,087 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:37,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:37,091 INFO L82 PathProgramCache]: Analyzing trace with hash 173971, now seen corresponding path program 1 times [2021-10-21 20:17:37,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:37,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204945941] [2021-10-21 20:17:37,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:37,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:37,097 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:37,104 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:37,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:37,105 INFO L82 PathProgramCache]: Analyzing trace with hash 541800559, now seen corresponding path program 1 times [2021-10-21 20:17:37,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:17:37,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557323274] [2021-10-21 20:17:37,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:17:37,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:17:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:37,137 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:17:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:17:37,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:17:37,263 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:37,264 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:37,264 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:37,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:37,264 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 20:17:37,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:37,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:37,265 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:37,265 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2021-10-21 20:17:37,265 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:37,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:37,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:37,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:37,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:37,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:37,379 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:37,379 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 20:17:37,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:37,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:37,381 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:37,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 20:17:37,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:37,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 20:17:37,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:37,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:37,465 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:37,468 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 20:17:37,468 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 20:17:37,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 20:17:37,519 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 20:17:37,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:37,523 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 20:17:37,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 20:17:37,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 20:17:37,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 20:17:37,523 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 20:17:37,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:37,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 20:17:37,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 20:17:37,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_4-3a.c.cil.c_Iteration5_Loop [2021-10-21 20:17:37,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 20:17:37,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 20:17:37,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:37,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 20:17:37,609 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 20:17:37,609 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 20:17:37,609 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:37,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:37,621 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:37,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 20:17:37,623 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 [2021-10-21 20:17:37,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 20:17:37,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 20:17:37,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 20:17:37,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 20:17:37,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 20:17:37,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 20:17:37,637 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 20:17:37,653 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 20:17:37,658 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 20:17:37,658 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 20:17:37,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:17:37,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:17:37,659 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:17:37,661 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 20:17:37,661 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 20:17:37,662 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 20:17:37,662 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2021-10-21 20:17:37,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 20:17:37,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:37,710 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 20:17:37,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:17:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:37,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:17:37,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:17:37,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 20:17:37,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:17:37,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:17:37,832 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-21 20:17:37,832 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:17:37,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 11. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 39 transitions. Complement of second has 4 states. [2021-10-21 20:17:37,839 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 [2021-10-21 20:17:37,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:17:37,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 28 transitions. [2021-10-21 20:17:37,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-21 20:17:37,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:37,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-21 20:17:37,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:37,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 28 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-21 20:17:37,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 20:17:37,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2021-10-21 20:17:37,843 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:17:37,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-10-21 20:17:37,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 20:17:37,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 20:17:37,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 20:17:37,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:17:37,844 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:17:37,844 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:17:37,844 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 20:17:37,844 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-21 20:17:37,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 20:17:37,844 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 20:17:37,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 20:17:37,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:17:37 BoogieIcfgContainer [2021-10-21 20:17:37,852 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:17:37,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:17:37,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:17:37,853 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:17:37,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:17:32" (3/4) ... [2021-10-21 20:17:37,857 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:17:37,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:17:37,859 INFO L168 Benchmark]: Toolchain (without parser) took 6736.71 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 59.7 MB in the beginning and 70.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:37,860 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 76.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:17:37,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.21 ms. Allocated memory is still 98.6 MB. Free memory was 59.4 MB in the beginning and 73.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:37,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.08 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 71.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:37,862 INFO L168 Benchmark]: Boogie Preprocessor took 45.46 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 69.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:37,863 INFO L168 Benchmark]: RCFGBuilder took 690.38 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 53.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:37,863 INFO L168 Benchmark]: BuchiAutomizer took 5513.93 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 53.7 MB in the beginning and 70.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:17:37,864 INFO L168 Benchmark]: Witness Printer took 5.17 ms. Allocated memory is still 121.6 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:17:37,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 98.6 MB. Free memory is still 76.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 411.21 ms. Allocated memory is still 98.6 MB. Free memory was 59.4 MB in the beginning and 73.7 MB in the end (delta: -14.3 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.08 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 71.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.46 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 69.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 690.38 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 53.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5513.93 ms. Allocated memory was 98.6 MB in the beginning and 121.6 MB in the end (delta: 23.1 MB). Free memory was 53.7 MB in the beginning and 70.4 MB in the end (delta: -16.7 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.17 ms. Allocated memory is still 121.6 MB. Free memory is still 70.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 253 + -2 * e and consists of 4 locations. One deterministic module has affine ranking function 253 + -2 * e 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 253 + -2 * e and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 4.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 51.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 30 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 259 SDtfs, 226 SDslu, 27 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.0ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 74ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 20:17:37,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 20:17:38,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef0bbed2-4fcc-469e-866e-dd00caa15699/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...