./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer --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 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:16:20,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:16:20,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:16:20,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:16:20,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:16:20,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:16:20,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:16:20,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:16:20,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:16:20,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:16:20,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:16:20,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:16:20,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:16:20,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:16:20,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:16:20,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:16:20,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:16:20,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:16:20,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:16:20,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:16:20,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:16:20,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:16:20,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:16:20,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:16:20,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:16:20,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:16:20,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:16:20,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:16:20,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:16:20,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:16:20,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:16:20,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:16:20,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:16:20,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:16:20,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:16:20,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:16:20,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:16:20,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:16:20,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:16:20,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:16:20,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:16:20,716 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-15 22:16:20,732 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:16:20,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:16:20,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:16:20,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:16:20,734 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:16:20,734 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:16:20,734 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:16:20,735 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:16:20,735 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:16:20,735 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:16:20,735 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:16:20,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:16:20,736 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:16:20,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:16:20,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:16:20,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:16:20,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:16:20,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:16:20,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:16:20,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:16:20,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:16:20,742 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:16:20,742 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:16:20,742 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:16:20,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:16:20,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:16:20,743 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:16:20,743 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:16:20,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:16:20,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:16:20,744 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:16:20,744 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:16:20,745 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer 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 -> 8bbbd483a09fdeea97ffdf681e0639d6c4265da0 [2019-11-15 22:16:20,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:16:20,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:16:20,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:16:20,794 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:16:20,794 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:16:20,795 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-11-15 22:16:20,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/data/690ac2e29/a0d8a35c18e2419585b986a330b851d0/FLAGd64bf369c [2019-11-15 22:16:21,249 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:16:21,250 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2019-11-15 22:16:21,262 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/data/690ac2e29/a0d8a35c18e2419585b986a330b851d0/FLAGd64bf369c [2019-11-15 22:16:21,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/data/690ac2e29/a0d8a35c18e2419585b986a330b851d0 [2019-11-15 22:16:21,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:16:21,576 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:16:21,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:16:21,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:16:21,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:16:21,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:16:21" (1/1) ... [2019-11-15 22:16:21,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7c0b82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:21, skipping insertion in model container [2019-11-15 22:16:21,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:16:21" (1/1) ... [2019-11-15 22:16:21,595 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:16:21,646 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:16:21,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:16:21,969 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:16:22,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:16:22,031 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:16:22,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22 WrapperNode [2019-11-15 22:16:22,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:16:22,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:16:22,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:16:22,033 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:16:22,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:16:22,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:16:22,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:16:22,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:16:22,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... [2019-11-15 22:16:22,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:16:22,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:16:22,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:16:22,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:16:22,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:22,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:16:22,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:16:22,634 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:16:22,634 INFO L284 CfgBuilder]: Removed 28 assume(true) statements. [2019-11-15 22:16:22,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:16:22 BoogieIcfgContainer [2019-11-15 22:16:22,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:16:22,636 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:16:22,636 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:16:22,639 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:16:22,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:16:22,640 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:16:21" (1/3) ... [2019-11-15 22:16:22,640 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dd0ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:16:22, skipping insertion in model container [2019-11-15 22:16:22,641 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:16:22,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:16:22" (2/3) ... [2019-11-15 22:16:22,645 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1dd0ef35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:16:22, skipping insertion in model container [2019-11-15 22:16:22,645 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:16:22,645 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:16:22" (3/3) ... [2019-11-15 22:16:22,647 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2019-11-15 22:16:22,680 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:16:22,680 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:16:22,680 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:16:22,681 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:16:22,681 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:16:22,681 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:16:22,681 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:16:22,681 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:16:22,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-15 22:16:22,720 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-15 22:16:22,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:16:22,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:16:22,725 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:16:22,725 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:16:22,726 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:16:22,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states. [2019-11-15 22:16:22,733 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-15 22:16:22,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:16:22,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:16:22,734 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:16:22,734 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:16:22,740 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 65#L20true assume !(0 == base2flt_~m % 4294967296); 26#L26true assume !(base2flt_~m % 4294967296 < 16777216); 46#L48-2true [2019-11-15 22:16:22,740 INFO L793 eck$LassoCheckResult]: Loop: 46#L48-2true assume !false; 59#L49true assume base2flt_~m % 4294967296 >= 33554432; 79#L50true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 46#L48-2true [2019-11-15 22:16:22,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:22,745 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-15 22:16:22,750 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:22,751 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285659660] [2019-11-15 22:16:22,751 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:22,751 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:22,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:16:22,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285659660] [2019-11-15 22:16:22,881 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:16:22,881 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 22:16:22,881 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350988784] [2019-11-15 22:16:22,885 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 22:16:22,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:22,886 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-15 22:16:22,886 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:22,886 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330898488] [2019-11-15 22:16:22,886 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:22,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:22,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:22,922 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:22,968 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:22,973 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:22,973 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:22,974 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:22,974 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:16:22,974 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:22,975 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:22,975 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:22,975 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-11-15 22:16:22,975 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:22,975 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:22,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,135 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:23,136 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:23,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:23,145 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:16:23,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:16:23,175 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:16:23,177 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:23,177 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:23,177 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:23,178 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:23,178 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:16:23,178 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,178 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:23,178 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:23,178 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration1_Loop [2019-11-15 22:16:23,178 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:23,178 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:23,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,286 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:23,289 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:16:23,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:23,292 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:23,292 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:23,293 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:23,293 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:23,293 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:23,295 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:23,295 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:23,301 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:16:23,306 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:16:23,307 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:16:23,308 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:16:23,309 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:16:23,309 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:16:23,310 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-15 22:16:23,312 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:16:23,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:23,367 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:16:23,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:23,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:16:23,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:16:23,400 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 [2019-11-15 22:16:23,401 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states. Second operand 3 states. [2019-11-15 22:16:23,514 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states.. Second operand 3 states. Result 254 states and 411 transitions. Complement of second has 6 states. [2019-11-15 22:16:23,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:16:23,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:16:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 269 transitions. [2019-11-15 22:16:23,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-15 22:16:23,520 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:23,520 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 22:16:23,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:23,521 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 269 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-15 22:16:23,521 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:23,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 254 states and 411 transitions. [2019-11-15 22:16:23,535 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-15 22:16:23,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 254 states to 56 states and 81 transitions. [2019-11-15 22:16:23,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-15 22:16:23,543 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-15 22:16:23,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-15 22:16:23,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:16:23,544 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-15 22:16:23,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-15 22:16:23,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-15 22:16:23,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-15 22:16:23,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-15 22:16:23,579 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-15 22:16:23,580 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:16:23,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 22:16:23,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 22:16:23,585 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-15 22:16:23,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:16:23,629 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-15 22:16:23,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 22:16:23,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-15 22:16:23,631 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-15 22:16:23,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-15 22:16:23,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-15 22:16:23,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-15 22:16:23,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-15 22:16:23,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:16:23,633 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 22:16:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-15 22:16:23,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-15 22:16:23,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-15 22:16:23,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-15 22:16:23,635 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 22:16:23,635 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-15 22:16:23,635 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:16:23,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-15 22:16:23,636 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-15 22:16:23,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:16:23,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:16:23,637 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:16:23,637 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:16:23,637 INFO L791 eck$LassoCheckResult]: Stem: 469#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 468#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 459#L70 base2flt_#res := base2flt_~__retres4~0; 460#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;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; 465#L20-1 assume !(0 == base2flt_~m % 4294967296); 467#L26-1 assume !(base2flt_~m % 4294967296 < 16777216); 462#L48-5 [2019-11-15 22:16:23,637 INFO L793 eck$LassoCheckResult]: Loop: 462#L48-5 assume !false; 453#L49-1 assume base2flt_~m % 4294967296 >= 33554432; 455#L50-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 462#L48-5 [2019-11-15 22:16:23,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:23,637 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-15 22:16:23,638 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:23,638 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115645940] [2019-11-15 22:16:23,638 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:23,638 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:23,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:23,658 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:23,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:23,658 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-15 22:16:23,659 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:23,659 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066053138] [2019-11-15 22:16:23,659 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:23,659 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:23,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:23,672 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:23,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-15 22:16:23,673 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:23,673 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597368695] [2019-11-15 22:16:23,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:23,674 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:23,674 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:23,718 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:23,742 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:23,742 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:23,742 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:23,742 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:23,742 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:16:23,742 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,743 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:23,743 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:23,743 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-11-15 22:16:23,743 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:23,743 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:23,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,834 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:23,834 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:23,847 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:23,847 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,856 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:16:23,856 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:23,870 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:23,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:16:23,888 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,896 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:16:23,899 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:23,899 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:23,899 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:23,899 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:23,899 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:16:23,899 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:23,900 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:23,900 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:23,900 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration2_Loop [2019-11-15 22:16:23,900 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:23,900 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:23,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:23,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,012 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:24,012 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:16:24,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:24,013 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:24,014 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:24,014 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:24,014 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:24,014 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:24,015 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:24,015 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:24,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:16:24,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:24,045 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:24,045 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:24,046 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:24,046 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:24,046 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:24,047 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:24,049 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:24,053 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:16:24,064 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:16:24,064 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:16:24,064 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:16:24,064 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:16:24,065 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:16:24,065 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-15 22:16:24,065 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:16:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:24,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:16:24,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:24,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:24,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:16:24,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:16:24,101 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 [2019-11-15 22:16:24,101 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-15 22:16:24,114 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 40 states and 50 transitions. Complement of second has 5 states. [2019-11-15 22:16:24,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:16:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:16:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-15 22:16:24,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 22:16:24,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 22:16:24,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,116 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-15 22:16:24,116 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-15 22:16:24,118 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-15 22:16:24,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-15 22:16:24,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-15 22:16:24,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-15 22:16:24,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-15 22:16:24,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:16:24,120 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-15 22:16:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-15 22:16:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-15 22:16:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 22:16:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-15 22:16:24,123 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 22:16:24,123 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 22:16:24,123 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 22:16:24,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-15 22:16:24,124 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-15 22:16:24,124 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:16:24,124 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:16:24,125 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-15 22:16:24,125 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:16:24,125 INFO L791 eck$LassoCheckResult]: Stem: 581#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 580#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 571#L70 base2flt_#res := base2flt_~__retres4~0; 572#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;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; 577#L20-1 assume !(0 == base2flt_~m % 4294967296); 579#L26-1 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-11-15 22:16:24,125 INFO L793 eck$LassoCheckResult]: Loop: 584#L38-3 assume !false; 575#L29-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 576#L38-2 assume base2flt_~m % 4294967296 < 16777216; 584#L38-3 [2019-11-15 22:16:24,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,126 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-15 22:16:24,126 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,126 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334296718] [2019-11-15 22:16:24,126 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,127 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,144 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:24,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,145 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-15 22:16:24,145 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,145 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339930421] [2019-11-15 22:16:24,145 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,145 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,153 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-15 22:16:24,154 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,154 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107152461] [2019-11-15 22:16:24,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,176 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:24,202 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:24,202 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:24,202 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:24,202 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:24,203 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:16:24,203 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,203 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:24,203 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:24,203 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-11-15 22:16:24,203 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:24,203 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:24,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,282 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:24,282 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:24,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:16:24,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:16:24,293 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:24,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:24,306 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:24,324 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:16:24,324 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,332 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:16:24,334 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:24,334 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:24,335 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:24,335 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:24,335 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:16:24,335 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,335 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:24,335 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:24,335 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration3_Loop [2019-11-15 22:16:24,336 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:24,336 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:24,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,424 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:24,425 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:16:24,425 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:24,426 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:24,426 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:24,426 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:24,426 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:24,427 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:24,428 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:24,428 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:24,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:16:24,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:24,431 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:24,432 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:24,432 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:24,432 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:24,432 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:24,433 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:24,433 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:24,436 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:16:24,450 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:16:24,451 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:16:24,451 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:16:24,451 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:16:24,452 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:16:24,452 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-15 22:16:24,452 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:16:24,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:24,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:16:24,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:24,499 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:16:24,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:16:24,526 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 [2019-11-15 22:16:24,526 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-15 22:16:24,543 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 44 states and 55 transitions. Complement of second has 5 states. [2019-11-15 22:16:24,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:16:24,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:16:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-15 22:16:24,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-15 22:16:24,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 22:16:24,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,550 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-15 22:16:24,550 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-15 22:16:24,551 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-15 22:16:24,552 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-15 22:16:24,552 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-15 22:16:24,553 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-15 22:16:24,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-15 22:16:24,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:16:24,553 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-15 22:16:24,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-15 22:16:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-15 22:16:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-15 22:16:24,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-15 22:16:24,556 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-15 22:16:24,556 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-15 22:16:24,556 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 22:16:24,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-15 22:16:24,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-15 22:16:24,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:16:24,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:16:24,558 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:16:24,558 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:16:24,558 INFO L791 eck$LassoCheckResult]: Stem: 700#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 699#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 690#L70 base2flt_#res := base2flt_~__retres4~0; 691#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;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; 696#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 679#L70-1 base2flt_#res := base2flt_~__retres4~0; 680#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;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; 689#L20-2 assume !(0 == base2flt_~m % 4294967296); 697#L26-2 assume !(base2flt_~m % 4294967296 < 16777216); 686#L48-8 [2019-11-15 22:16:24,558 INFO L793 eck$LassoCheckResult]: Loop: 686#L48-8 assume !false; 677#L49-2 assume base2flt_~m % 4294967296 >= 33554432; 678#L50-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 686#L48-8 [2019-11-15 22:16:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-15 22:16:24,559 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,559 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188451936] [2019-11-15 22:16:24,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,559 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,559 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,577 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:24,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,578 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-15 22:16:24,578 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,579 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434241034] [2019-11-15 22:16:24,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,579 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,588 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-15 22:16:24,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81582636] [2019-11-15 22:16:24,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:24,615 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:24,647 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:24,647 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:24,647 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:24,647 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:24,647 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:16:24,647 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,648 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:24,648 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:24,648 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-11-15 22:16:24,648 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:24,648 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:24,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,745 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:24,746 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:24,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:24,760 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:24,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:16:24,781 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,791 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:16:24,794 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:24,794 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:24,794 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:24,794 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:24,794 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:16:24,794 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:24,795 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:24,795 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:24,795 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration4_Loop [2019-11-15 22:16:24,795 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:24,795 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:24,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:24,900 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:24,900 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:16:24,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:24,901 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:24,901 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:24,901 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:24,902 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:24,902 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:24,902 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:24,903 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:24,905 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:16:24,907 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:16:24,907 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:16:24,908 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:16:24,908 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:16:24,908 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:16:24,908 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-15 22:16:24,909 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:16:24,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:24,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:16:24,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:24,962 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:16:24,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:16:24,964 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 [2019-11-15 22:16:24,964 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-15 22:16:24,972 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 32 states and 42 transitions. Complement of second has 4 states. [2019-11-15 22:16:24,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:16:24,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:16:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-15 22:16:24,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 22:16:24,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-15 22:16:24,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-15 22:16:24,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:24,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-15 22:16:24,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 22:16:24,976 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-15 22:16:24,976 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-15 22:16:24,976 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-15 22:16:24,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-15 22:16:24,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:16:24,976 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 22:16:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-15 22:16:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-15 22:16:24,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-15 22:16:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-15 22:16:24,979 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 22:16:24,979 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-15 22:16:24,979 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 22:16:24,979 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-15 22:16:24,979 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 22:16:24,980 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:16:24,980 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:16:24,980 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:16:24,980 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 22:16:24,980 INFO L791 eck$LassoCheckResult]: Stem: 813#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet1;havoc main_#t~nondet1;main_~ea~2 := main_#t~nondet2;havoc main_#t~nondet2;havoc main_~b~0;main_~mb~2 := main_#t~nondet3;havoc main_#t~nondet3;main_~eb~2 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;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; 812#L20 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 802#L70 base2flt_#res := base2flt_~__retres4~0; 803#L71 main_#t~ret5 := base2flt_#res;main_~zero~0 := main_#t~ret5;havoc main_#t~ret5;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; 809#L20-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 793#L70-1 base2flt_#res := base2flt_~__retres4~0; 794#L71-1 main_#t~ret6 := base2flt_#res;main_~a~0 := main_#t~ret6;havoc main_#t~ret6;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; 804#L20-2 assume !(0 == base2flt_~m % 4294967296); 810#L26-2 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-11-15 22:16:24,981 INFO L793 eck$LassoCheckResult]: Loop: 815#L38-5 assume !false; 800#L29-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 801#L38-4 assume base2flt_~m % 4294967296 < 16777216; 815#L38-5 [2019-11-15 22:16:24,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:24,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-15 22:16:24,981 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:24,981 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839389348] [2019-11-15 22:16:24,982 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,982 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:24,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:25,016 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:25,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:25,021 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-15 22:16:25,021 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:25,021 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631441892] [2019-11-15 22:16:25,021 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:25,022 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:25,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:25,032 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:25,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-15 22:16:25,033 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:16:25,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222294806] [2019-11-15 22:16:25,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:25,033 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:16:25,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:16:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:16:25,053 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:16:25,077 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:25,078 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:25,078 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:25,078 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:25,078 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:16:25,078 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:25,078 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:25,078 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:25,079 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-11-15 22:16:25,079 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:25,079 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:25,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:25,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:25,154 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:25,154 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:25,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:16:25,209 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cba159f-2748-43bf-89f4-0ef9534bb03c/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:16:25,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:16:25,230 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:25,237 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:16:25,239 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:16:25,239 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:16:25,239 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:16:25,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:16:25,240 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:16:25,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:16:25,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:16:25,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:16:25,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: soft_float_1-2a.c.cil.c_Iteration5_Loop [2019-11-15 22:16:25,240 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:16:25,240 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:16:25,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:25,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:16:25,322 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:16:25,323 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:16:25,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-15 22:16:25,323 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:16:25,324 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:16:25,324 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:16:25,324 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:16:25,324 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:16:25,324 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:16:25,324 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:16:25,327 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:16:25,328 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:16:25,328 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:16:25,329 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:16:25,329 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:16:25,329 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:16:25,329 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-15 22:16:25,333 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:16:25,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:16:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:25,368 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:16:25,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:16:25,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:16:25,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:16:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:16:25,401 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 [2019-11-15 22:16:25,401 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-15 22:16:25,409 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11. Second operand 4 states. Result 30 states and 38 transitions. Complement of second has 4 states. [2019-11-15 22:16:25,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 22:16:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-15 22:16:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-15 22:16:25,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-15 22:16:25,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:25,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-15 22:16:25,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:25,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-15 22:16:25,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:16:25,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-15 22:16:25,412 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:16:25,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-15 22:16:25,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:16:25,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:16:25,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:16:25,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:16:25,413 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:16:25,413 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:16:25,413 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:16:25,413 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-15 22:16:25,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:16:25,413 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:16:25,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 22:16:25,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:16:25 BoogieIcfgContainer [2019-11-15 22:16:25,423 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:16:25,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:16:25,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:16:25,424 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:16:25,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:16:22" (3/4) ... [2019-11-15 22:16:25,428 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:16:25,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:16:25,431 INFO L168 Benchmark]: Toolchain (without parser) took 3853.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -209.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:16:25,431 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:16:25,433 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 22:16:25,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-15 22:16:25,438 INFO L168 Benchmark]: Boogie Preprocessor took 33.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:16:25,438 INFO L168 Benchmark]: RCFGBuilder took 523.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:16:25,439 INFO L168 Benchmark]: BuchiAutomizer took 2787.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 96.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -98.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:16:25,439 INFO L168 Benchmark]: Witness Printer took 5.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:16:25,446 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 454.59 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -155.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.91 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 523.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2787.10 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 96.5 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -98.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 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 -2 * e + 253 and consists of 4 locations. One deterministic module has affine ranking function -2 * e + 253 and consists of 3 locations. One deterministic module has affine ranking function 2 * e + 255 and consists of 3 locations. One deterministic module has affine ranking function -2 * e + 253 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 2.7s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 272 SDtfs, 240 SDslu, 26 SDs, 0 SdLazy, 38 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax100 hnf95 lsp57 ukn100 mio100 lsp100 div583 bol100 ite100 ukn100 eq132 hnf44 smp92 dnf100 smp100 tf105 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 19ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...