./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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 0e04f2515dd5c7ce697460622800d33932bf1903 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:52:48,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:52:48,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:52:48,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:52:48,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:52:48,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:52:48,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:52:48,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:52:48,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:52:48,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:52:48,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:52:48,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:52:48,626 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:52:48,627 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:52:48,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:52:48,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:52:48,630 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:52:48,631 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:52:48,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:52:48,634 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:52:48,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:52:48,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:52:48,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:52:48,639 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:52:48,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:52:48,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:52:48,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:52:48,642 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:52:48,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:52:48,644 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:52:48,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:52:48,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:52:48,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:52:48,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:52:48,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:52:48,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:52:48,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:52:48,648 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:52:48,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:52:48,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:52:48,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:52:48,650 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-20 05:52:48,665 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:52:48,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:52:48,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:52:48,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:52:48,666 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:52:48,666 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 05:52:48,666 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 05:52:48,667 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 05:52:48,667 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 05:52:48,667 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 05:52:48,667 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 05:52:48,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:52:48,668 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:52:48,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:52:48,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:52:48,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:52:48,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:52:48,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 05:52:48,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 05:52:48,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 05:52:48,669 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:52:48,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:52:48,670 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 05:52:48,670 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:52:48,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 05:52:48,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:52:48,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:52:48,671 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 05:52:48,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:52:48,671 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:52:48,672 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 05:52:48,672 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 05:52:48,673 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_485fddbe-5366-4b11-9b69-e1b11fbb02db/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 -> 0e04f2515dd5c7ce697460622800d33932bf1903 [2019-11-20 05:52:48,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:52:48,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:52:48,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:52:48,834 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:52:48,834 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:52:48,835 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-20 05:52:48,885 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/data/581abb335/49792cc28d4848a7b643dbeab7dd85c9/FLAGe9cf39f01 [2019-11-20 05:52:49,282 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:52:49,283 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2019-11-20 05:52:49,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/data/581abb335/49792cc28d4848a7b643dbeab7dd85c9/FLAGe9cf39f01 [2019-11-20 05:52:49,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/data/581abb335/49792cc28d4848a7b643dbeab7dd85c9 [2019-11-20 05:52:49,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:52:49,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:52:49,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:52:49,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:52:49,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:52:49,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:49,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8e1b43c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49, skipping insertion in model container [2019-11-20 05:52:49,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:49,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:52:49,670 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:52:49,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:52:49,925 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:52:49,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:52:49,982 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:52:49,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49 WrapperNode [2019-11-20 05:52:49,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:52:49,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:52:49,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:52:49,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:52:49,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:49,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:52:50,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:52:50,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:52:50,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:52:50,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... [2019-11-20 05:52:50,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:52:50,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:52:50,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:52:50,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:52:50,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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 [2019-11-20 05:52:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:52:50,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:52:50,605 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:52:50,605 INFO L285 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-20 05:52:50,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:50 BoogieIcfgContainer [2019-11-20 05:52:50,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:52:50,607 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 05:52:50,607 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 05:52:50,610 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 05:52:50,611 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:52:50,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:52:49" (1/3) ... [2019-11-20 05:52:50,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@111f910d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:52:50, skipping insertion in model container [2019-11-20 05:52:50,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:52:50,613 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:49" (2/3) ... [2019-11-20 05:52:50,613 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@111f910d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:52:50, skipping insertion in model container [2019-11-20 05:52:50,614 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:52:50,614 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:50" (3/3) ... [2019-11-20 05:52:50,615 INFO L371 chiAutomizerObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2019-11-20 05:52:50,652 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 05:52:50,652 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 05:52:50,652 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 05:52:50,652 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:52:50,653 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:52:50,653 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 05:52:50,653 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:52:50,653 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 05:52:50,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2019-11-20 05:52:50,694 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-20 05:52:50,694 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:52:50,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:52:50,701 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 05:52:50,701 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:52:50,701 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 05:52:50,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 89 states. [2019-11-20 05:52:50,709 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 18 [2019-11-20 05:52:50,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:52:50,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:52:50,710 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 05:52:50,710 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:52:50,717 INFO L794 eck$LassoCheckResult]: Stem: 46#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_add~0, main_~zero~0, main_~sa~0, main_~sb~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~tmp___2~0, main_~tmp___3~0, main_~tmp___4~0, main_~tmp___5~0, main_~tmp___6~0, main_~tmp___7~0, main_~tmp___8~0, main_~tmp___9~0, main_~__retres23~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_add~0;havoc main_~zero~0;havoc main_~sa~0;havoc main_~sb~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~tmp___2~0;havoc main_~tmp___3~0;havoc main_~tmp___4~0;havoc main_~tmp___5~0;havoc main_~tmp___6~0;havoc main_~tmp___7~0;havoc main_~tmp___8~0;havoc main_~tmp___9~0;havoc main_~__retres23~0;base2flt_#in~m, base2flt_#in~e := 0, 0;havoc base2flt_#res;havoc base2flt_~m, base2flt_~e, base2flt_~res~0, base2flt_~__retres4~0;base2flt_~m := base2flt_#in~m;base2flt_~e := base2flt_#in~e;havoc base2flt_~res~0;havoc base2flt_~__retres4~0; 40#L19true assume !(0 == base2flt_~m % 4294967296); 27#L25true assume !(base2flt_~m % 4294967296 < 16777216); 19#L47-2true [2019-11-20 05:52:50,718 INFO L796 eck$LassoCheckResult]: Loop: 19#L47-2true assume !false; 33#L48true assume base2flt_~m % 4294967296 >= 33554432; 60#L49true assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 19#L47-2true [2019-11-20 05:52:50,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:50,724 INFO L82 PathProgramCache]: Analyzing trace with hash 30973, now seen corresponding path program 1 times [2019-11-20 05:52:50,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:50,730 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225806970] [2019-11-20 05:52:50,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:50,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225806970] [2019-11-20 05:52:50,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:52:50,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-20 05:52:50,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664784481] [2019-11-20 05:52:50,866 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 05:52:50,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:50,867 INFO L82 PathProgramCache]: Analyzing trace with hash 73619, now seen corresponding path program 1 times [2019-11-20 05:52:50,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:50,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400315930] [2019-11-20 05:52:50,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:50,900 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:50,943 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:50,944 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:50,944 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:50,944 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:50,944 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:52:50,945 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:50,945 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:50,945 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:50,945 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2019-11-20 05:52:50,945 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:50,946 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:50,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:50,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:51,108 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:51,109 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:51,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:51,117 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_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:51,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:52:51,136 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:51,145 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:52:51,147 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:51,147 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:51,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:51,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:51,148 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:52:51,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:51,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:51,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:51,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration1_Loop [2019-11-20 05:52:51,148 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:51,148 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:51,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:51,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:51,265 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:51,270 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:51,276 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 [2019-11-20 05:52:51,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:51,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:51,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:51,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:51,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:51,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:51,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:52:51,285 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:52:51,292 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:52:51,292 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:51,307 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:52:51,307 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:52:51,308 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:52:51,309 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-20 05:52:51,316 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:51,388 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:52:51,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:51,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:52:51,402 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:51,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:51,418 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 [2019-11-20 05:52:51,419 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 89 states. Second operand 3 states. [2019-11-20 05:52:51,510 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 89 states.. Second operand 3 states. Result 264 states and 424 transitions. Complement of second has 6 states. [2019-11-20 05:52:51,511 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 [2019-11-20 05:52:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:52:51,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2019-11-20 05:52:51,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 3 letters. Loop has 3 letters. [2019-11-20 05:52:51,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:51,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 05:52:51,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:51,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 277 transitions. Stem has 3 letters. Loop has 6 letters. [2019-11-20 05:52:51,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:51,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 424 transitions. [2019-11-20 05:52:51,530 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 27 [2019-11-20 05:52:51,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 56 states and 81 transitions. [2019-11-20 05:52:51,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-11-20 05:52:51,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2019-11-20 05:52:51,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 81 transitions. [2019-11-20 05:52:51,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:52:51,542 INFO L688 BuchiCegarLoop]: Abstraction has 56 states and 81 transitions. [2019-11-20 05:52:51,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 81 transitions. [2019-11-20 05:52:51,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 45. [2019-11-20 05:52:51,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-20 05:52:51,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 69 transitions. [2019-11-20 05:52:51,566 INFO L711 BuchiCegarLoop]: Abstraction has 45 states and 69 transitions. [2019-11-20 05:52:51,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:52:51,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:52:51,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:52:51,570 INFO L87 Difference]: Start difference. First operand 45 states and 69 transitions. Second operand 3 states. [2019-11-20 05:52:51,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:52:51,611 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2019-11-20 05:52:51,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:52:51,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-20 05:52:51,613 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-20 05:52:51,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 05:52:51,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-11-20 05:52:51,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-11-20 05:52:51,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2019-11-20 05:52:51,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:52:51,615 INFO L688 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 05:52:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2019-11-20 05:52:51,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-11-20 05:52:51,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 05:52:51,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2019-11-20 05:52:51,617 INFO L711 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 05:52:51,617 INFO L591 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2019-11-20 05:52:51,618 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 05:52:51,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2019-11-20 05:52:51,618 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-20 05:52:51,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:52:51,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:52:51,622 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 05:52:51,622 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:52:51,623 INFO L794 eck$LassoCheckResult]: Stem: 483#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, 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~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;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; 481#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 469#L69 base2flt_#res := base2flt_~__retres4~0; 470#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 477#L19-1 assume !(0 == base2flt_~m % 4294967296); 480#L25-1 assume !(base2flt_~m % 4294967296 < 16777216); 474#L47-5 [2019-11-20 05:52:51,623 INFO L796 eck$LassoCheckResult]: Loop: 474#L47-5 assume !false; 462#L48-1 assume base2flt_~m % 4294967296 >= 33554432; 464#L49-1 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 474#L47-5 [2019-11-20 05:52:51,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:51,624 INFO L82 PathProgramCache]: Analyzing trace with hash 921737699, now seen corresponding path program 1 times [2019-11-20 05:52:51,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:51,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626936766] [2019-11-20 05:52:51,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:51,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:51,667 INFO L82 PathProgramCache]: Analyzing trace with hash 136178, now seen corresponding path program 1 times [2019-11-20 05:52:51,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:51,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002511189] [2019-11-20 05:52:51,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:51,704 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:51,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:51,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1761973968, now seen corresponding path program 1 times [2019-11-20 05:52:51,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:51,705 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634807839] [2019-11-20 05:52:51,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:51,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:51,767 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:51,767 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:51,767 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:51,767 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:51,767 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:52:51,767 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:51,768 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:51,768 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:51,768 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2019-11-20 05:52:51,768 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:51,768 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:51,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:51,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:51,865 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:51,865 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:51,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:51,879 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 [2019-11-20 05:52:51,886 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:52:51,887 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_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:51,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:51,905 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:51,924 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:52:51,925 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 [2019-11-20 05:52:51,934 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:52:51,936 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:51,936 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:51,936 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:51,936 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:51,936 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:52:51,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:51,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:51,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:51,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration2_Loop [2019-11-20 05:52:51,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:51,937 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:51,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:51,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,043 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:52,043 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:52,058 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 [2019-11-20 05:52:52,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:52,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:52,060 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:52,060 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:52,060 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:52,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:52,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,085 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 [2019-11-20 05:52:52,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:52,090 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:52,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:52,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:52,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:52,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:52,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:52:52,098 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:52:52,103 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:52:52,104 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,115 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:52:52,116 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:52:52,116 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:52:52,116 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-20 05:52:52,120 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:52:52,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:52,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:52:52,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:52,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:52:52,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:52,169 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 [2019-11-20 05:52:52,169 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 30 transitions. cyclomatic complexity: 11 Second operand 3 states. [2019-11-20 05:52:52,192 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. [2019-11-20 05:52:52,192 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 [2019-11-20 05:52:52,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:52:52,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2019-11-20 05:52:52,193 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 05:52:52,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:52,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 05:52:52,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:52,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 05:52:52,195 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:52,195 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2019-11-20 05:52:52,196 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 15 [2019-11-20 05:52:52,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 37 states and 46 transitions. [2019-11-20 05:52:52,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2019-11-20 05:52:52,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 34 [2019-11-20 05:52:52,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 46 transitions. [2019-11-20 05:52:52,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:52:52,198 INFO L688 BuchiCegarLoop]: Abstraction has 37 states and 46 transitions. [2019-11-20 05:52:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 46 transitions. [2019-11-20 05:52:52,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 26. [2019-11-20 05:52:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 05:52:52,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-20 05:52:52,202 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 05:52:52,202 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 05:52:52,202 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 05:52:52,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-20 05:52:52,203 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2019-11-20 05:52:52,203 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:52:52,203 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:52:52,204 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 05:52:52,204 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:52:52,204 INFO L794 eck$LassoCheckResult]: Stem: 595#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, 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~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;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; 593#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 581#L69 base2flt_#res := base2flt_~__retres4~0; 582#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 589#L19-1 assume !(0 == base2flt_~m % 4294967296); 592#L25-1 assume base2flt_~m % 4294967296 < 16777216; 597#L37-3 [2019-11-20 05:52:52,205 INFO L796 eck$LassoCheckResult]: Loop: 597#L37-3 assume !false; 587#L28-1 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 588#L37-2 assume base2flt_~m % 4294967296 < 16777216; 597#L37-3 [2019-11-20 05:52:52,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,205 INFO L82 PathProgramCache]: Analyzing trace with hash 921737673, now seen corresponding path program 1 times [2019-11-20 05:52:52,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:52,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205339003] [2019-11-20 05:52:52,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:52,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,222 INFO L82 PathProgramCache]: Analyzing trace with hash 110419, now seen corresponding path program 1 times [2019-11-20 05:52:52,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:52,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200800928] [2019-11-20 05:52:52,223 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:52,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1761173643, now seen corresponding path program 1 times [2019-11-20 05:52:52,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:52,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531121393] [2019-11-20 05:52:52,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,279 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:52,306 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:52,306 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:52,306 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:52,307 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:52,307 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:52:52,307 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,307 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:52,307 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:52,307 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2019-11-20 05:52:52,307 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:52,307 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:52,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,404 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:52,404 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:52,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:52,410 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 [2019-11-20 05:52:52,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:52:52,420 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_485fddbe-5366-4b11-9b69-e1b11fbb02db/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) [2019-11-20 05:52:52,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:52,440 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:52:52,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:52:52,463 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:52:52,465 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:52,465 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:52,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:52,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:52,466 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:52:52,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:52,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:52,466 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration3_Loop [2019-11-20 05:52:52,466 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:52,467 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:52,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,603 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:52,603 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:52,619 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 [2019-11-20 05:52:52,621 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:52,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:52,622 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:52,622 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:52,622 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:52,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:52,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:52:52,641 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:52,678 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 [2019-11-20 05:52:52,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:52,680 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:52,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:52,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:52,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:52,682 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:52,682 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:52:52,687 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:52:52,688 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,696 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:52:52,703 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:52:52,703 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:52:52,703 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-20 05:52:52,708 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:52:52,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:52,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:52:52,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:52,744 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:52:52,745 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:52,771 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 [2019-11-20 05:52:52,771 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 12 Second operand 4 states. [2019-11-20 05:52:52,782 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. [2019-11-20 05:52:52,783 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 [2019-11-20 05:52:52,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 05:52:52,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2019-11-20 05:52:52,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 05:52:52,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:52,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 05:52:52,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:52,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 33 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 05:52:52,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:52,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 55 transitions. [2019-11-20 05:52:52,785 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2019-11-20 05:52:52,786 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 51 transitions. [2019-11-20 05:52:52,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2019-11-20 05:52:52,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2019-11-20 05:52:52,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2019-11-20 05:52:52,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:52:52,787 INFO L688 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2019-11-20 05:52:52,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2019-11-20 05:52:52,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2019-11-20 05:52:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 05:52:52,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2019-11-20 05:52:52,789 INFO L711 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-20 05:52:52,789 INFO L591 BuchiCegarLoop]: Abstraction has 29 states and 38 transitions. [2019-11-20 05:52:52,789 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 05:52:52,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 38 transitions. [2019-11-20 05:52:52,790 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-11-20 05:52:52,790 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:52:52,790 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:52:52,791 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:52:52,791 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:52:52,791 INFO L794 eck$LassoCheckResult]: Stem: 715#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, 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~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;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; 712#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 699#L69 base2flt_#res := base2flt_~__retres4~0; 700#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 708#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 703#L69-1 base2flt_#res := base2flt_~__retres4~0; 701#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;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; 702#L19-2 assume !(0 == base2flt_~m % 4294967296); 709#L25-2 assume !(base2flt_~m % 4294967296 < 16777216); 696#L47-8 [2019-11-20 05:52:52,792 INFO L796 eck$LassoCheckResult]: Loop: 696#L47-8 assume !false; 710#L48-2 assume base2flt_~m % 4294967296 >= 33554432; 695#L49-2 assume !(base2flt_~e >= 127);base2flt_~e := 1 + base2flt_~e;base2flt_~m := base2flt_~m / 2; 696#L47-8 [2019-11-20 05:52:52,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951196, now seen corresponding path program 1 times [2019-11-20 05:52:52,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:52,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821661645] [2019-11-20 05:52:52,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,810 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:52,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,811 INFO L82 PathProgramCache]: Analyzing trace with hash 198737, now seen corresponding path program 1 times [2019-11-20 05:52:52,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:52,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405593353] [2019-11-20 05:52:52,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,820 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:52,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:52,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1766695638, now seen corresponding path program 1 times [2019-11-20 05:52:52,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:52,821 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19821424] [2019-11-20 05:52:52,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:52,842 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:52,868 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:52,868 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:52,868 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:52,869 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:52,869 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:52:52,869 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:52,869 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:52,869 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:52,869 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2019-11-20 05:52:52,869 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:52,869 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:52,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:52,967 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:52,967 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:52,979 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:52,980 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:52,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:52:52,997 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,005 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:52:53,007 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:53,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:53,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:53,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:53,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:52:53,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:53,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:53,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration4_Loop [2019-11-20 05:52:53,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:53,008 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:53,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:53,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:53,109 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:53,109 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,131 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 [2019-11-20 05:52:53,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:53,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:53,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:53,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:53,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:53,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:53,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:52:53,137 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:52:53,143 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:52:53,143 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,163 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:52:53,163 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:52:53,164 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:52:53,164 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = -2*ULTIMATE.start_base2flt_~e + 253 Supporting invariants [] [2019-11-20 05:52:53,166 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:52:53,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:53,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:53,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:52:53,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:53,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:52:53,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:53,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:53,215 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 [2019-11-20 05:52:53,215 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 38 transitions. cyclomatic complexity: 13 Second operand 3 states. [2019-11-20 05:52:53,224 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. [2019-11-20 05:52:53,225 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 [2019-11-20 05:52:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:52:53,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2019-11-20 05:52:53,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 05:52:53,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:53,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-20 05:52:53,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:53,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 30 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-20 05:52:53,226 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:53,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 42 transitions. [2019-11-20 05:52:53,227 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 05:52:53,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 26 states and 34 transitions. [2019-11-20 05:52:53,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2019-11-20 05:52:53,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2019-11-20 05:52:53,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 34 transitions. [2019-11-20 05:52:53,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:52:53,228 INFO L688 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 05:52:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 34 transitions. [2019-11-20 05:52:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-20 05:52:53,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-20 05:52:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2019-11-20 05:52:53,230 INFO L711 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 05:52:53,230 INFO L591 BuchiCegarLoop]: Abstraction has 26 states and 34 transitions. [2019-11-20 05:52:53,230 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 05:52:53,230 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 34 transitions. [2019-11-20 05:52:53,231 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 05:52:53,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:52:53,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:52:53,234 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:52:53,234 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 05:52:53,234 INFO L794 eck$LassoCheckResult]: Stem: 828#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_#t~ret5, main_#t~ret6, main_#t~ret7, 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~nondet0;havoc main_#t~nondet0;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;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; 825#L19 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 813#L69 base2flt_#res := base2flt_~__retres4~0; 814#L70 main_#t~ret4 := base2flt_#res;main_~zero~0 := main_#t~ret4;havoc main_#t~ret4;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; 822#L19-1 assume 0 == base2flt_~m % 4294967296;base2flt_~__retres4~0 := 0; 817#L69-1 base2flt_#res := base2flt_~__retres4~0; 815#L70-1 main_#t~ret5 := base2flt_#res;main_~a~0 := main_#t~ret5;havoc main_#t~ret5;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; 816#L19-2 assume !(0 == base2flt_~m % 4294967296); 823#L25-2 assume base2flt_~m % 4294967296 < 16777216; 827#L37-5 [2019-11-20 05:52:53,234 INFO L796 eck$LassoCheckResult]: Loop: 827#L37-5 assume !false; 811#L28-2 assume !(base2flt_~e <= -128);base2flt_~e := base2flt_~e - 1;base2flt_~m := 2 * base2flt_~m; 812#L37-4 assume base2flt_~m % 4294967296 < 16777216; 827#L37-5 [2019-11-20 05:52:53,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1760951170, now seen corresponding path program 1 times [2019-11-20 05:52:53,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:53,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503262072] [2019-11-20 05:52:53,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:53,269 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:53,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:53,272 INFO L82 PathProgramCache]: Analyzing trace with hash 172978, now seen corresponding path program 1 times [2019-11-20 05:52:53,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:53,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433247827] [2019-11-20 05:52:53,273 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:53,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:53,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:53,288 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:53,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1765895313, now seen corresponding path program 1 times [2019-11-20 05:52:53,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:52:53,289 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895044534] [2019-11-20 05:52:53,289 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:52:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:53,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:52:53,322 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:52:53,352 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:53,352 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:53,352 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:53,352 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:53,352 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:52:53,352 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,353 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:53,353 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:53,353 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2019-11-20 05:52:53,353 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:53,353 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:53,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:53,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:53,423 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:53,424 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,432 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:52:53,432 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:53,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,444 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:52:53,451 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:52:53,453 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:52:53,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:52:53,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:52:53,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:52:53,454 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:52:53,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:52:53,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:52:53,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: soft_float_1-3a.c.cil.c_Iteration5_Loop [2019-11-20 05:52:53,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:52:53,454 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:52:53,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:53,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:52:53,527 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:52:53,527 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:53,533 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 [2019-11-20 05:52:53,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:52:53,535 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:52:53,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:52:53,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:52:53,535 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:52:53,536 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:52:53,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,543 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:52:53,548 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:52:53,548 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_485fddbe-5366-4b11-9b69-e1b11fbb02db/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:52:53,552 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:52:53,552 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:52:53,553 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:52:53,553 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_base2flt_~e) = 2*ULTIMATE.start_base2flt_~e + 255 Supporting invariants [] [2019-11-20 05:52:53,563 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:52:53,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:52:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:53,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:52:53,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:52:53,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:52:53,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:52:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:52:53,615 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 [2019-11-20 05:52:53,615 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2019-11-20 05:52:53,621 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. [2019-11-20 05:52:53,622 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 [2019-11-20 05:52:53,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 05:52:53,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2019-11-20 05:52:53,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 05:52:53,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:53,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 12 letters. Loop has 3 letters. [2019-11-20 05:52:53,623 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:53,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 27 transitions. Stem has 9 letters. Loop has 6 letters. [2019-11-20 05:52:53,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:52:53,624 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2019-11-20 05:52:53,624 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:52:53,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2019-11-20 05:52:53,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 05:52:53,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 05:52:53,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 05:52:53,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:52:53,625 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:52:53,625 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:52:53,625 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:52:53,625 INFO L424 BuchiCegarLoop]: ======== Iteration 6============ [2019-11-20 05:52:53,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:52:53,625 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:52:53,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 05:52:53,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:52:53 BoogieIcfgContainer [2019-11-20 05:52:53,635 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 05:52:53,635 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:52:53,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:52:53,636 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:52:53,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:50" (3/4) ... [2019-11-20 05:52:53,639 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:52:53,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:52:53,642 INFO L168 Benchmark]: Toolchain (without parser) took 4020.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.6 MB in the beginning and 993.8 MB in the end (delta: -53.2 MB). Peak memory consumption was 81.1 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:53,643 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:52:53,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 361.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:53,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:53,649 INFO L168 Benchmark]: Boogie Preprocessor took 44.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:53,650 INFO L168 Benchmark]: RCFGBuilder took 534.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:53,650 INFO L168 Benchmark]: BuchiAutomizer took 3027.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 89.9 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. [2019-11-20 05:52:53,651 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 1.2 GB. Free memory is still 993.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:52:53,662 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 361.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3027.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.8 MB in the end (delta: 89.9 MB). Peak memory consumption was 89.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.52 ms. Allocated memory is still 1.2 GB. Free memory is still 993.8 MB. 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 2.9s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. 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: 275 SDtfs, 243 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: 37ms 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...