./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ............................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 14:12:19,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 14:12:19,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 14:12:19,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 14:12:19,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 14:12:19,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 14:12:19,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 14:12:19,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 14:12:19,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 14:12:19,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 14:12:19,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 14:12:19,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 14:12:19,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 14:12:19,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 14:12:19,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 14:12:19,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 14:12:19,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 14:12:19,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 14:12:19,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 14:12:19,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 14:12:19,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 14:12:19,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 14:12:19,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 14:12:19,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 14:12:19,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 14:12:19,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 14:12:19,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 14:12:19,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 14:12:19,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 14:12:19,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 14:12:19,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 14:12:19,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 14:12:19,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 14:12:19,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 14:12:19,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 14:12:19,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 14:12:19,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 14:12:19,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 14:12:19,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 14:12:19,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 14:12:19,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 14:12:19,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 14:12:19,887 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 14:12:19,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 14:12:19,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 14:12:19,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 14:12:19,889 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 14:12:19,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 14:12:19,890 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 14:12:19,890 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 14:12:19,890 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 14:12:19,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 14:12:19,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 14:12:19,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 14:12:19,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 14:12:19,892 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 14:12:19,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 14:12:19,892 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 14:12:19,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 14:12:19,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 14:12:19,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 14:12:19,893 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 14:12:19,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 14:12:19,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 14:12:19,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 14:12:19,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 14:12:19,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 14:12:19,895 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 14:12:19,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 14:12:19,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 14:12:19,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 14:12:19,896 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 ! call(__VERIFIER_error())) ) 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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-28 14:12:20,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 14:12:20,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 14:12:20,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 14:12:20,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 14:12:20,222 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 14:12:20,223 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 14:12:20,282 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b6f877e8/73492bb3da6f42e09556385e11e94f2b/FLAG25afa8540 [2019-11-28 14:12:20,726 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 14:12:20,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 14:12:20,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b6f877e8/73492bb3da6f42e09556385e11e94f2b/FLAG25afa8540 [2019-11-28 14:12:21,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b6f877e8/73492bb3da6f42e09556385e11e94f2b [2019-11-28 14:12:21,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 14:12:21,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 14:12:21,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 14:12:21,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 14:12:21,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 14:12:21,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d122c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21, skipping insertion in model container [2019-11-28 14:12:21,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 14:12:21,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 14:12:21,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 14:12:21,370 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 14:12:21,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 14:12:21,408 INFO L208 MainTranslator]: Completed translation [2019-11-28 14:12:21,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21 WrapperNode [2019-11-28 14:12:21,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 14:12:21,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 14:12:21,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 14:12:21,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 14:12:21,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 14:12:21,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 14:12:21,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 14:12:21,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 14:12:21,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (1/1) ... [2019-11-28 14:12:21,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 14:12:21,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 14:12:21,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 14:12:21,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 14:12:21,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (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 [2019-11-28 14:12:21,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 14:12:21,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 14:12:21,768 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 14:12:21,768 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 14:12:21,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:12:21 BoogieIcfgContainer [2019-11-28 14:12:21,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 14:12:21,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 14:12:21,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 14:12:21,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 14:12:21,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:12:21" (1/3) ... [2019-11-28 14:12:21,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c055b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:12:21, skipping insertion in model container [2019-11-28 14:12:21,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:21" (2/3) ... [2019-11-28 14:12:21,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c055b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:12:21, skipping insertion in model container [2019-11-28 14:12:21,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:12:21" (3/3) ... [2019-11-28 14:12:21,788 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-28 14:12:21,822 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 14:12:21,841 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 14:12:21,873 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 14:12:21,909 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 14:12:21,909 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 14:12:21,909 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 14:12:21,909 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 14:12:21,910 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 14:12:21,910 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 14:12:21,910 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 14:12:21,910 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 14:12:21,923 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 14:12:21,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 14:12:21,928 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 14:12:21,929 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 14:12:21,929 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 14:12:21,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 14:12:21,935 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-28 14:12:21,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 14:12:21,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521926849] [2019-11-28 14:12:21,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 14:12:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 14:12:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 14:12:22,044 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 14:12:22,045 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 14:12:22,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:12:22 BoogieIcfgContainer [2019-11-28 14:12:22,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 14:12:22,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 14:12:22,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 14:12:22,065 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 14:12:22,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:12:21" (3/4) ... [2019-11-28 14:12:22,071 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 14:12:22,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 14:12:22,074 INFO L168 Benchmark]: Toolchain (without parser) took 947.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -150.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 14:12:22,075 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 14:12:22,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.49 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 14:12:22,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 14:12:22,078 INFO L168 Benchmark]: Boogie Preprocessor took 24.24 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 14:12:22,079 INFO L168 Benchmark]: RCFGBuilder took 240.77 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: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2019-11-28 14:12:22,081 INFO L168 Benchmark]: TraceAbstraction took 291.45 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-28 14:12:22,081 INFO L168 Benchmark]: Witness Printer took 6.37 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. [2019-11-28 14:12:22,086 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.49 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.24 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 240.77 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: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 291.45 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.37 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 14:12:24,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 14:12:24,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 14:12:24,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 14:12:24,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 14:12:24,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 14:12:24,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 14:12:24,058 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 14:12:24,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 14:12:24,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 14:12:24,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 14:12:24,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 14:12:24,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 14:12:24,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 14:12:24,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 14:12:24,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 14:12:24,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 14:12:24,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 14:12:24,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 14:12:24,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 14:12:24,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 14:12:24,098 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 14:12:24,099 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 14:12:24,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 14:12:24,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 14:12:24,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 14:12:24,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 14:12:24,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 14:12:24,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 14:12:24,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 14:12:24,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 14:12:24,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 14:12:24,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 14:12:24,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 14:12:24,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 14:12:24,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 14:12:24,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 14:12:24,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 14:12:24,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 14:12:24,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 14:12:24,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 14:12:24,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 14:12:24,149 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 14:12:24,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 14:12:24,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 14:12:24,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 14:12:24,157 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 14:12:24,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 14:12:24,158 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 14:12:24,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 14:12:24,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 14:12:24,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 14:12:24,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 14:12:24,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 14:12:24,160 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 14:12:24,160 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 14:12:24,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 14:12:24,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 14:12:24,161 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 14:12:24,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 14:12:24,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 14:12:24,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 14:12:24,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 14:12:24,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 14:12:24,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 14:12:24,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 14:12:24,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 14:12:24,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 14:12:24,164 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 14:12:24,164 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 14:12:24,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 14:12:24,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 14:12:24,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 14:12:24,165 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 ! call(__VERIFIER_error())) ) 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 -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-28 14:12:24,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 14:12:24,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 14:12:24,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 14:12:24,518 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 14:12:24,519 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 14:12:24,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 14:12:24,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0c0a34f6/33b40ae1a72d4593b7cc57bc76c0b906/FLAG39d371ca1 [2019-11-28 14:12:25,037 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 14:12:25,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-28 14:12:25,044 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0c0a34f6/33b40ae1a72d4593b7cc57bc76c0b906/FLAG39d371ca1 [2019-11-28 14:12:25,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0c0a34f6/33b40ae1a72d4593b7cc57bc76c0b906 [2019-11-28 14:12:25,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 14:12:25,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 14:12:25,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 14:12:25,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 14:12:25,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 14:12:25,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8e4261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25, skipping insertion in model container [2019-11-28 14:12:25,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 14:12:25,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 14:12:25,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 14:12:25,656 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 14:12:25,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 14:12:25,691 INFO L208 MainTranslator]: Completed translation [2019-11-28 14:12:25,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25 WrapperNode [2019-11-28 14:12:25,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 14:12:25,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 14:12:25,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 14:12:25,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 14:12:25,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 14:12:25,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 14:12:25,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 14:12:25,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 14:12:25,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (1/1) ... [2019-11-28 14:12:25,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 14:12:25,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 14:12:25,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 14:12:25,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 14:12:25,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (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 [2019-11-28 14:12:25,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 14:12:25,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 14:12:30,908 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 14:12:30,909 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 14:12:30,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:12:30 BoogieIcfgContainer [2019-11-28 14:12:30,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 14:12:30,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 14:12:30,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 14:12:30,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 14:12:30,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:12:25" (1/3) ... [2019-11-28 14:12:30,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b44bc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:12:30, skipping insertion in model container [2019-11-28 14:12:30,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:12:25" (2/3) ... [2019-11-28 14:12:30,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b44bc05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:12:30, skipping insertion in model container [2019-11-28 14:12:30,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:12:30" (3/3) ... [2019-11-28 14:12:30,919 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-28 14:12:30,929 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 14:12:30,935 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-28 14:12:30,948 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-28 14:12:30,976 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 14:12:30,976 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 14:12:30,976 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 14:12:30,976 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 14:12:30,977 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 14:12:30,977 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 14:12:30,977 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 14:12:30,978 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 14:12:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-28 14:12:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 14:12:30,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 14:12:30,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 14:12:30,997 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 14:12:31,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 14:12:31,002 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-28 14:12:31,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 14:12:31,011 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234592741] [2019-11-28 14:12:31,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 14:12:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 14:12:33,891 WARN L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 14:12:33,896 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 14:12:36,389 WARN L192 SmtUtils]: Spent 1.91 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-28 14:12:38,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 14:12:38,967 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 14:12:41,239 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-28 14:12:43,292 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-28 14:12:54,969 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-28 14:12:54,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 14:12:54,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234592741] [2019-11-28 14:12:54,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 14:12:54,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-28 14:12:54,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553024081] [2019-11-28 14:12:54,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-28 14:12:54,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 14:12:54,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-28 14:12:54,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=4, NotChecked=10, Total=56 [2019-11-28 14:12:54,998 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-28 14:12:57,132 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-28 14:12:59,180 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-11-28 14:13:01,236 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-28 14:13:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 14:13:25,312 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-28 14:13:25,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 14:13:25,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-28 14:13:25,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 14:13:25,324 INFO L225 Difference]: With dead ends: 29 [2019-11-28 14:13:25,325 INFO L226 Difference]: Without dead ends: 11 [2019-11-28 14:13:25,328 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=22, Invalid=39, Unknown=7, NotChecked=42, Total=110 [2019-11-28 14:13:25,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-28 14:13:25,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-28 14:13:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 14:13:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-28 14:13:25,361 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-28 14:13:25,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 14:13:25,361 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-28 14:13:25,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-28 14:13:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-28 14:13:25,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 14:13:25,362 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 14:13:25,362 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 14:13:25,570 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 14:13:25,571 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 14:13:25,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 14:13:25,572 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-28 14:13:25,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 14:13:25,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45488255] [2019-11-28 14:13:25,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 14:13:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 14:13:25,941 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-28 14:13:25,942 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 14:13:28,009 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from false [2019-11-28 14:13:30,071 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from true [2019-11-28 14:13:30,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 14:13:32,143 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-28 14:13:34,205 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-28 14:13:34,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 14:13:40,408 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-28 14:13:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 14:13:40,417 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 14:13:42,494 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-28 14:13:44,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 14:13:44,516 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45488255] [2019-11-28 14:13:44,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 14:13:44,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-28 14:13:44,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995510877] [2019-11-28 14:13:44,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-28 14:13:44,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 14:13:44,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-28 14:13:44,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2019-11-28 14:13:44,519 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-28 14:13:48,433 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from false [2019-11-28 14:13:50,515 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from true [2019-11-28 14:13:52,581 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) is different from false [2019-11-28 14:13:52,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 14:13:52,586 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-28 14:13:52,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 14:13:52,586 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-28 14:13:52,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 14:13:52,587 INFO L225 Difference]: With dead ends: 9 [2019-11-28 14:13:52,587 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 14:13:52,588 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=15, Invalid=6, Unknown=9, NotChecked=42, Total=72 [2019-11-28 14:13:52,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 14:13:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 14:13:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 14:13:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 14:13:52,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-28 14:13:52,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 14:13:52,589 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 14:13:52,590 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-28 14:13:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 14:13:52,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 14:13:52,792 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 14:13:52,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 14:14:05,282 WARN L192 SmtUtils]: Spent 12.45 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-28 14:14:26,861 WARN L192 SmtUtils]: Spent 21.57 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-28 14:14:26,867 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 14:14:26,867 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-28 14:14:26,868 INFO L246 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-28 14:14:26,868 INFO L246 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-28 14:14:26,868 INFO L242 CegarLoopResult]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-28 14:14:26,868 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 14:14:26,868 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 14:14:26,868 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 14:14:26,869 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-28 14:14:26,869 INFO L242 CegarLoopResult]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-28 14:14:26,869 INFO L246 CegarLoopResult]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-28 14:14:26,870 INFO L246 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-28 14:14:26,870 INFO L242 CegarLoopResult]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-28 14:14:26,870 INFO L246 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-28 14:14:26,870 INFO L242 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-28 14:14:26,881 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:26,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,888 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:26,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:26,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 14:14:26,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:26,896 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 14:14:26,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:14:26 BoogieIcfgContainer [2019-11-28 14:14:26,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 14:14:26,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 14:14:26,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 14:14:26,903 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 14:14:26,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:12:30" (3/4) ... [2019-11-28 14:14:26,908 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 14:14:26,919 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-28 14:14:26,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 14:14:26,920 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 14:14:26,970 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 14:14:26,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 14:14:26,972 INFO L168 Benchmark]: Toolchain (without parser) took 121575.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -86.3 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. [2019-11-28 14:14:26,972 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 14:14:26,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.35 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 14:14:26,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 14:14:26,975 INFO L168 Benchmark]: Boogie Preprocessor took 27.68 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 14:14:26,975 INFO L168 Benchmark]: RCFGBuilder took 5086.81 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-28 14:14:26,976 INFO L168 Benchmark]: TraceAbstraction took 115991.18 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: 75.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 11.5 GB. [2019-11-28 14:14:26,976 INFO L168 Benchmark]: Witness Printer took 67.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 14:14:26,980 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.35 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.68 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5086.81 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 115991.18 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: 75.5 MB). Peak memory consumption was 75.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.57 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-28 14:14:26,992 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:26,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,997 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,999 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:26,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:26,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 26]: Loop Invariant [2019-11-28 14:14:27,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:27,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 14:14:27,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-28 14:14:27,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 14:14:27,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 14:14:27,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || (((0bv32 == r && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 81.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 38.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 34.0s, HoareTripleCheckerStatistics: 12 SDtfs, 17 SDslu, 15 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 23.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 47.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 87 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 34.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 39.7s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 2 QuantifiedInterpolants, 1979 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...