./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 45b185c6c694406b0734db5727dff1b8fd93ebcf ................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: null --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:25:08,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:25:08,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:25:08,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:25:08,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:25:08,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:25:08,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:25:08,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:25:08,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:25:08,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:25:08,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:25:08,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:25:08,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:25:08,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:25:08,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:25:08,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:25:08,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:25:08,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:25:08,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:25:08,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:25:08,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:25:08,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:25:08,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:25:08,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:25:08,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:25:08,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:25:08,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:25:08,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:25:08,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:25:08,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:25:08,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:25:08,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:25:08,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:25:08,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:25:08,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:25:08,634 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:25:08,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:25:08,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:25:08,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:25:08,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:25:08,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:25:08,641 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-07-29 01:25:08,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:25:08,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:25:08,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:25:08,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:25:08,659 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:25:08,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:25:08,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 01:25:08,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:25:08,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:25:08,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 01:25:08,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:25:08,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-29 01:25:08,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:25:08,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-29 01:25:08,661 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-07-29 01:25:08,662 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 01:25:08,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:25:08,662 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:25:08,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-29 01:25:08,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:25:08,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:25:08,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:25:08,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:25:08,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:25:08,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:25:08,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:25:08,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-29 01:25:08,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:25:08,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:25:08,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-29 01:25:08,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:25:08,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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(G ! overflow) ) 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 -> 45b185c6c694406b0734db5727dff1b8fd93ebcf [2020-07-29 01:25:08,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:25:09,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:25:09,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:25:09,018 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:25:09,021 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:25:09,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2020-07-29 01:25:09,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dcbb392/c7ee3fb65e764f258f0351000dad9721/FLAG0ece23e4d [2020-07-29 01:25:09,505 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:25:09,506 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2.c.cil.c [2020-07-29 01:25:09,514 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dcbb392/c7ee3fb65e764f258f0351000dad9721/FLAG0ece23e4d [2020-07-29 01:25:09,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dcbb392/c7ee3fb65e764f258f0351000dad9721 [2020-07-29 01:25:09,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:25:09,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:25:09,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:25:09,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:25:09,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:25:09,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:25:09" (1/1) ... [2020-07-29 01:25:09,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f8ec6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:09, skipping insertion in model container [2020-07-29 01:25:09,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:25:09" (1/1) ... [2020-07-29 01:25:09,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:25:09,952 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:25:10,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:25:10,245 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:25:10,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:25:10,438 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:25:10,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10 WrapperNode [2020-07-29 01:25:10,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:25:10,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:25:10,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:25:10,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:25:10,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,548 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:25:10,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:25:10,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:25:10,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:25:10,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,574 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... [2020-07-29 01:25:10,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:25:10,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:25:10,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:25:10,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:25:10,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:25:10,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:25:10,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:25:11,778 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:25:11,779 INFO L295 CfgBuilder]: Removed 24 assume(true) statements. [2020-07-29 01:25:11,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:25:11 BoogieIcfgContainer [2020-07-29 01:25:11,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:25:11,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:25:11,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:25:11,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:25:11,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:25:09" (1/3) ... [2020-07-29 01:25:11,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4505a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:25:11, skipping insertion in model container [2020-07-29 01:25:11,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:25:10" (2/3) ... [2020-07-29 01:25:11,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4505a64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:25:11, skipping insertion in model container [2020-07-29 01:25:11,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:25:11" (3/3) ... [2020-07-29 01:25:11,800 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_2.c.cil.c [2020-07-29 01:25:11,810 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:25:11,818 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 46 error locations. [2020-07-29 01:25:11,832 INFO L251 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2020-07-29 01:25:11,863 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:25:11,864 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-29 01:25:11,864 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:25:11,864 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:25:11,865 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:25:11,865 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:25:11,865 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:25:11,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:25:11,890 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-07-29 01:25:11,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:25:11,897 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:25:11,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:25:11,898 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:25:11,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:25:11,904 INFO L82 PathProgramCache]: Analyzing trace with hash 922901410, now seen corresponding path program 1 times [2020-07-29 01:25:11,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:25:11,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632421055] [2020-07-29 01:25:11,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:25:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:25:12,059 INFO L280 TraceCheckUtils]: 0: Hoare triple {165#true} 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_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sa~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;assume -128 <= main_#t~nondet1 && main_#t~nondet1 <= 127;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;assume -128 <= main_#t~nondet3 && main_#t~nondet3 <= 127;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sa~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; {165#true} is VALID [2020-07-29 01:25:12,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {165#true} assume !(0 == base2flt_~m % 4294967296); {165#true} is VALID [2020-07-29 01:25:12,060 INFO L280 TraceCheckUtils]: 2: Hoare triple {165#true} assume !(base2flt_~m % 4294967296 < 16777216); {165#true} is VALID [2020-07-29 01:25:12,061 INFO L280 TraceCheckUtils]: 3: Hoare triple {165#true} assume !true; {166#false} is VALID [2020-07-29 01:25:12,061 INFO L280 TraceCheckUtils]: 4: Hoare triple {166#false} base2flt_~m := ~bitwiseAnd(base2flt_~m, ~bitwiseComplement(16777216)); {166#false} is VALID [2020-07-29 01:25:12,062 INFO L280 TraceCheckUtils]: 5: Hoare triple {166#false} assume !(128 + base2flt_~e <= 2147483647); {166#false} is VALID [2020-07-29 01:25:12,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:25:12,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632421055] [2020-07-29 01:25:12,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:25:12,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-29 01:25:12,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877017845] [2020-07-29 01:25:12,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-07-29 01:25:12,072 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:25:12,074 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:25:12,099 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:12,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-29 01:25:12,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:25:12,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-29 01:25:12,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-29 01:25:12,112 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2020-07-29 01:25:13,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:13,405 INFO L93 Difference]: Finished difference Result 305 states and 401 transitions. [2020-07-29 01:25:13,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-29 01:25:13,407 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-07-29 01:25:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:25:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:25:13,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 401 transitions. [2020-07-29 01:25:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:25:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 401 transitions. [2020-07-29 01:25:13,437 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 401 transitions. [2020-07-29 01:25:14,048 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 401 edges. 401 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:14,068 INFO L225 Difference]: With dead ends: 305 [2020-07-29 01:25:14,068 INFO L226 Difference]: Without dead ends: 147 [2020-07-29 01:25:14,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-29 01:25:14,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-29 01:25:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-07-29 01:25:14,129 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:25:14,130 INFO L82 GeneralOperation]: Start isEquivalent. First operand 147 states. Second operand 147 states. [2020-07-29 01:25:14,131 INFO L74 IsIncluded]: Start isIncluded. First operand 147 states. Second operand 147 states. [2020-07-29 01:25:14,131 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 147 states. [2020-07-29 01:25:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:14,141 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2020-07-29 01:25:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2020-07-29 01:25:14,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:14,143 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:14,143 INFO L74 IsIncluded]: Start isIncluded. First operand 147 states. Second operand 147 states. [2020-07-29 01:25:14,144 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 147 states. [2020-07-29 01:25:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:14,152 INFO L93 Difference]: Finished difference Result 147 states and 174 transitions. [2020-07-29 01:25:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2020-07-29 01:25:14,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:14,154 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:14,154 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:25:14,155 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:25:14,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-07-29 01:25:14,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 174 transitions. [2020-07-29 01:25:14,164 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 174 transitions. Word has length 6 [2020-07-29 01:25:14,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:25:14,165 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 174 transitions. [2020-07-29 01:25:14,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-29 01:25:14,165 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 174 transitions. [2020-07-29 01:25:14,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-07-29 01:25:14,166 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:25:14,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-07-29 01:25:14,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-29 01:25:14,168 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:25:14,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:25:14,168 INFO L82 PathProgramCache]: Analyzing trace with hash 921960144, now seen corresponding path program 1 times [2020-07-29 01:25:14,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:25:14,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005866677] [2020-07-29 01:25:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:25:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:25:14,247 INFO L280 TraceCheckUtils]: 0: Hoare triple {981#true} 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_#t~ret8, main_~a~0, main_~ma~2, main_~ea~2, main_~b~0, main_~mb~2, main_~eb~2, main_~r_mul~0, main_~zero~0, main_~one~0, main_~sa~0, main_~tmp~2, main_~tmp___0~0, main_~tmp___1~0, main_~__retres16~0;havoc main_~a~0;main_~ma~2 := main_#t~nondet0;havoc main_#t~nondet0;assume -128 <= main_#t~nondet1 && main_#t~nondet1 <= 127;main_~ea~2 := main_#t~nondet1;havoc main_#t~nondet1;havoc main_~b~0;main_~mb~2 := main_#t~nondet2;havoc main_#t~nondet2;assume -128 <= main_#t~nondet3 && main_#t~nondet3 <= 127;main_~eb~2 := main_#t~nondet3;havoc main_#t~nondet3;havoc main_~r_mul~0;havoc main_~zero~0;havoc main_~one~0;havoc main_~sa~0;havoc main_~tmp~2;havoc main_~tmp___0~0;havoc main_~tmp___1~0;havoc main_~__retres16~0;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; {983#(<= ULTIMATE.start_base2flt_~e 0)} is VALID [2020-07-29 01:25:14,249 INFO L280 TraceCheckUtils]: 1: Hoare triple {983#(<= ULTIMATE.start_base2flt_~e 0)} assume !(0 == base2flt_~m % 4294967296); {983#(<= ULTIMATE.start_base2flt_~e 0)} is VALID [2020-07-29 01:25:14,251 INFO L280 TraceCheckUtils]: 2: Hoare triple {983#(<= ULTIMATE.start_base2flt_~e 0)} assume base2flt_~m % 4294967296 < 16777216; {983#(<= ULTIMATE.start_base2flt_~e 0)} is VALID [2020-07-29 01:25:14,252 INFO L280 TraceCheckUtils]: 3: Hoare triple {983#(<= ULTIMATE.start_base2flt_~e 0)} assume !false; {983#(<= ULTIMATE.start_base2flt_~e 0)} is VALID [2020-07-29 01:25:14,253 INFO L280 TraceCheckUtils]: 4: Hoare triple {983#(<= ULTIMATE.start_base2flt_~e 0)} assume !(base2flt_~e <= -128); {983#(<= ULTIMATE.start_base2flt_~e 0)} is VALID [2020-07-29 01:25:14,254 INFO L280 TraceCheckUtils]: 5: Hoare triple {983#(<= ULTIMATE.start_base2flt_~e 0)} assume !(base2flt_~e - 1 <= 2147483647); {982#false} is VALID [2020-07-29 01:25:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 01:25:14,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005866677] [2020-07-29 01:25:14,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:25:14,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:25:14,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169439947] [2020-07-29 01:25:14,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-29 01:25:14,258 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-29 01:25:14,258 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:25:14,271 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:14,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-29 01:25:14,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:25:14,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:25:14,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:25:14,273 INFO L87 Difference]: Start difference. First operand 147 states and 174 transitions. Second operand 3 states. [2020-07-29 01:25:15,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:15,821 INFO L93 Difference]: Finished difference Result 335 states and 397 transitions. [2020-07-29 01:25:15,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:25:15,821 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-07-29 01:25:15,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-29 01:25:15,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:25:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2020-07-29 01:25:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:25:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 397 transitions. [2020-07-29 01:25:15,834 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 397 transitions. [2020-07-29 01:25:16,357 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 397 edges. 397 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:25:16,368 INFO L225 Difference]: With dead ends: 335 [2020-07-29 01:25:16,369 INFO L226 Difference]: Without dead ends: 211 [2020-07-29 01:25:16,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:25:16,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-07-29 01:25:16,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 157. [2020-07-29 01:25:16,410 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:25:16,410 INFO L82 GeneralOperation]: Start isEquivalent. First operand 211 states. Second operand 157 states. [2020-07-29 01:25:16,410 INFO L74 IsIncluded]: Start isIncluded. First operand 211 states. Second operand 157 states. [2020-07-29 01:25:16,410 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 157 states. [2020-07-29 01:25:16,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:16,418 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2020-07-29 01:25:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 247 transitions. [2020-07-29 01:25:16,421 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:16,421 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:16,421 INFO L74 IsIncluded]: Start isIncluded. First operand 157 states. Second operand 211 states. [2020-07-29 01:25:16,421 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 211 states. [2020-07-29 01:25:16,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:25:16,429 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2020-07-29 01:25:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 247 transitions. [2020-07-29 01:25:16,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:25:16,430 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:25:16,430 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:25:16,431 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:25:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-07-29 01:25:16,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2020-07-29 01:25:16,436 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 6 [2020-07-29 01:25:16,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-29 01:25:16,437 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2020-07-29 01:25:16,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-29 01:25:16,437 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2020-07-29 01:25:16,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-29 01:25:16,437 INFO L414 BasicCegarLoop]: Found error trace [2020-07-29 01:25:16,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-29 01:25:16,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-29 01:25:16,438 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-07-29 01:25:16,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:25:16,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1484006550, now seen corresponding path program 1 times [2020-07-29 01:25:16,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:25:16,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105692351] [2020-07-29 01:25:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:25:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:25:16,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-29 01:25:16,450 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) at de.uni_freiburg.informatik.ultimate.smtinterpol.proof.ProofTermGenerator.convert(ProofTermGenerator.java:150) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getProof(SMTInterpol.java:797) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:166) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-29 01:25:16,456 INFO L168 Benchmark]: Toolchain (without parser) took 6550.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:16,457 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:25:16,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:16,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:25:16,459 INFO L168 Benchmark]: Boogie Preprocessor took 73.04 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:16,460 INFO L168 Benchmark]: RCFGBuilder took 1167.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:25:16,461 INFO L168 Benchmark]: TraceAbstraction took 4662.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -109.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:25:16,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 531.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -177.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.04 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1167.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4662.64 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -109.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.proof.FixResolutionProof.fix(FixResolutionProof.java:191) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...