./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 de1bb103 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 0.1.24-de1bb10 [2019-11-27 13:08:28,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 13:08:28,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 13:08:28,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 13:08:28,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 13:08:28,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 13:08:28,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 13:08:28,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 13:08:28,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 13:08:28,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 13:08:28,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 13:08:28,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 13:08:28,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 13:08:28,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 13:08:28,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 13:08:28,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 13:08:28,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 13:08:28,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 13:08:28,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 13:08:28,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 13:08:28,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 13:08:28,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 13:08:28,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 13:08:28,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 13:08:28,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 13:08:28,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 13:08:28,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 13:08:28,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 13:08:28,448 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 13:08:28,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 13:08:28,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 13:08:28,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 13:08:28,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 13:08:28,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 13:08:28,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 13:08:28,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 13:08:28,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 13:08:28,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 13:08:28,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 13:08:28,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 13:08:28,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 13:08:28,458 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 13:08:28,473 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 13:08:28,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 13:08:28,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 13:08:28,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 13:08:28,475 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 13:08:28,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 13:08:28,476 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 13:08:28,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 13:08:28,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 13:08:28,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 13:08:28,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 13:08:28,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 13:08:28,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 13:08:28,478 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 13:08:28,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 13:08:28,479 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 13:08:28,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 13:08:28,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 13:08:28,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 13:08:28,480 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 13:08:28,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 13:08:28,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 13:08:28,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 13:08:28,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 13:08:28,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 13:08:28,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 13:08:28,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 13:08:28,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 13:08:28,483 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 [2019-11-27 13:08:28,802 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 13:08:28,816 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 13:08:28,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 13:08:28,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 13:08:28,822 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 13:08:28,823 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 13:08:28,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b94c66d/8d91ff16cb9d462ebe63c698002f310c/FLAGd18ddddf4 [2019-11-27 13:08:29,337 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 13:08:29,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 13:08:29,347 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b94c66d/8d91ff16cb9d462ebe63c698002f310c/FLAGd18ddddf4 [2019-11-27 13:08:29,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24b94c66d/8d91ff16cb9d462ebe63c698002f310c [2019-11-27 13:08:29,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 13:08:29,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 13:08:29,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 13:08:29,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 13:08:29,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 13:08:29,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:29,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15bea4b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29, skipping insertion in model container [2019-11-27 13:08:29,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:29,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 13:08:29,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 13:08:29,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 13:08:29,948 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 13:08:29,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 13:08:29,980 INFO L208 MainTranslator]: Completed translation [2019-11-27 13:08:29,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29 WrapperNode [2019-11-27 13:08:29,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 13:08:29,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 13:08:29,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 13:08:29,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 13:08:29,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 13:08:30,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 13:08:30,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 13:08:30,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 13:08:30,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (1/1) ... [2019-11-27 13:08:30,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 13:08:30,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 13:08:30,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 13:08:30,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 13:08:30,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (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 [2019-11-27 13:08:30,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 13:08:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 13:08:30,325 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 13:08:30,325 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 13:08:30,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 01:08:30 BoogieIcfgContainer [2019-11-27 13:08:30,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 13:08:30,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 13:08:30,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 13:08:30,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 13:08:30,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 01:08:29" (1/3) ... [2019-11-27 13:08:30,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb717b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 01:08:30, skipping insertion in model container [2019-11-27 13:08:30,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:29" (2/3) ... [2019-11-27 13:08:30,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb717b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 01:08:30, skipping insertion in model container [2019-11-27 13:08:30,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 01:08:30" (3/3) ... [2019-11-27 13:08:30,336 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-27 13:08:30,347 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 13:08:30,375 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-27 13:08:30,414 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-27 13:08:30,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 13:08:30,442 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 13:08:30,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 13:08:30,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 13:08:30,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 13:08:30,443 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 13:08:30,443 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 13:08:30,443 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 13:08:30,458 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-27 13:08:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 13:08:30,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 13:08:30,466 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 13:08:30,466 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 13:08:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 13:08:30,471 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-27 13:08:30,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 13:08:30,478 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929460554] [2019-11-27 13:08:30,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 13:08:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 13:08:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 13:08:30,580 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 13:08:30,581 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 13:08:30,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 01:08:30 BoogieIcfgContainer [2019-11-27 13:08:30,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 13:08:30,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 13:08:30,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 13:08:30,600 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 13:08:30,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 01:08:30" (3/4) ... [2019-11-27 13:08:30,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 13:08:30,605 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 13:08:30,608 INFO L168 Benchmark]: Toolchain (without parser) took 897.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -116.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 13:08:30,608 INFO L168 Benchmark]: CDTParser took 0.28 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. [2019-11-27 13:08:30,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.06 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. [2019-11-27 13:08:30,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-27 13:08:30,611 INFO L168 Benchmark]: Boogie Preprocessor took 23.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 13:08:30,612 INFO L168 Benchmark]: RCFGBuilder took 231.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2019-11-27 13:08:30,614 INFO L168 Benchmark]: TraceAbstraction took 271.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-27 13:08:30,614 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 13:08:30,619 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 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 271.06 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 88.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -160.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.02 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 231.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 271.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.18 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * 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 0.1.24-de1bb10 [2019-11-27 13:08:32,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 13:08:32,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 13:08:32,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 13:08:32,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 13:08:32,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 13:08:32,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 13:08:32,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 13:08:32,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 13:08:32,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 13:08:32,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 13:08:32,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 13:08:32,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 13:08:32,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 13:08:32,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 13:08:32,590 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 13:08:32,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 13:08:32,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 13:08:32,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 13:08:32,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 13:08:32,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 13:08:32,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 13:08:32,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 13:08:32,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 13:08:32,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 13:08:32,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 13:08:32,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 13:08:32,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 13:08:32,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 13:08:32,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 13:08:32,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 13:08:32,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 13:08:32,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 13:08:32,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 13:08:32,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 13:08:32,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 13:08:32,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 13:08:32,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 13:08:32,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 13:08:32,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 13:08:32,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 13:08:32,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 13:08:32,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 13:08:32,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 13:08:32,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 13:08:32,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 13:08:32,664 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 13:08:32,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 13:08:32,665 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 13:08:32,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 13:08:32,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 13:08:32,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 13:08:32,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 13:08:32,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 13:08:32,668 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 13:08:32,668 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 13:08:32,669 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 13:08:32,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 13:08:32,669 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 13:08:32,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 13:08:32,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 13:08:32,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 13:08:32,672 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 13:08:32,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 13:08:32,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 13:08:32,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 13:08:32,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 13:08:32,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 13:08:32,676 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 13:08:32,676 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 13:08:32,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 13:08:32,677 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 13:08:32,677 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 [2019-11-27 13:08:32,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 13:08:32,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 13:08:32,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 13:08:32,992 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 13:08:32,992 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 13:08:32,994 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 13:08:33,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911ca6e1e/4b3f768628fa495799b178349957ce55/FLAG5233dee60 [2019-11-27 13:08:33,550 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 13:08:33,551 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 13:08:33,556 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911ca6e1e/4b3f768628fa495799b178349957ce55/FLAG5233dee60 [2019-11-27 13:08:33,978 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/911ca6e1e/4b3f768628fa495799b178349957ce55 [2019-11-27 13:08:33,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 13:08:33,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 13:08:33,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 13:08:33,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 13:08:33,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 13:08:33,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 01:08:33" (1/1) ... [2019-11-27 13:08:33,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1236d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:33, skipping insertion in model container [2019-11-27 13:08:33,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 01:08:33" (1/1) ... [2019-11-27 13:08:34,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 13:08:34,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 13:08:34,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 13:08:34,231 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 13:08:34,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 13:08:34,275 INFO L208 MainTranslator]: Completed translation [2019-11-27 13:08:34,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34 WrapperNode [2019-11-27 13:08:34,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 13:08:34,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 13:08:34,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 13:08:34,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 13:08:34,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 13:08:34,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 13:08:34,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 13:08:34,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 13:08:34,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (1/1) ... [2019-11-27 13:08:34,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 13:08:34,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 13:08:34,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 13:08:34,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 13:08:34,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (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 [2019-11-27 13:08:34,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 13:08:34,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 13:08:39,371 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 13:08:39,371 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 13:08:39,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 01:08:39 BoogieIcfgContainer [2019-11-27 13:08:39,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 13:08:39,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 13:08:39,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 13:08:39,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 13:08:39,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 01:08:33" (1/3) ... [2019-11-27 13:08:39,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fad9a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 01:08:39, skipping insertion in model container [2019-11-27 13:08:39,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 01:08:34" (2/3) ... [2019-11-27 13:08:39,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fad9a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 01:08:39, skipping insertion in model container [2019-11-27 13:08:39,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 01:08:39" (3/3) ... [2019-11-27 13:08:39,381 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-27 13:08:39,389 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 13:08:39,405 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-27 13:08:39,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-27 13:08:39,445 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 13:08:39,445 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 13:08:39,445 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 13:08:39,445 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 13:08:39,446 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 13:08:39,446 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 13:08:39,446 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 13:08:39,446 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 13:08:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-27 13:08:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-27 13:08:39,464 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 13:08:39,465 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-27 13:08:39,465 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 13:08:39,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 13:08:39,470 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-27 13:08:39,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 13:08:39,480 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191690053] [2019-11-27 13:08:39,481 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 [2019-11-27 13:08:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 13:08:42,701 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-27 13:08:42,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 13:08:45,451 WARN L192 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-27 13:08:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 13:08:49,695 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 13:08:51,974 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 [2019-11-27 13:08:54,033 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 [2019-11-27 13:09:05,058 WARN L192 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-11-27 13:09:05,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 13:09:05,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191690053] [2019-11-27 13:09:05,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 13:09:05,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-27 13:09:05,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482214881] [2019-11-27 13:09:05,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 13:09:05,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 13:09:05,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 13:09:05,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=26, Unknown=6, NotChecked=10, Total=56 [2019-11-27 13:09:05,087 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-27 13:09:11,225 WARN L192 SmtUtils]: Spent 4.11 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-27 13:09:14,233 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))) (= (_ 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 [2019-11-27 13:09:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 13:09:44,629 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-27 13:09:44,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-27 13:09:44,681 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-27 13:09:44,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 13:09:44,689 INFO L225 Difference]: With dead ends: 29 [2019-11-27 13:09:44,689 INFO L226 Difference]: Without dead ends: 11 [2019-11-27 13:09:44,692 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 28.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=8, NotChecked=30, Total=110 [2019-11-27 13:09:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-27 13:09:44,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-27 13:09:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-27 13:09:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-27 13:09:44,727 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-27 13:09:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 13:09:44,728 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-27 13:09:44,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 13:09:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-27 13:09:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-27 13:09:44,729 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 13:09:44,730 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 13:09:44,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 13:09:44,945 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 13:09:44,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 13:09:44,946 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-27 13:09:44,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 13:09:44,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067134128] [2019-11-27 13:09:44,947 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 [2019-11-27 13:09:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 13:09:45,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-27 13:09:45,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 13:09:47,368 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 [2019-11-27 13:09:49,426 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 [2019-11-27 13:09:49,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 13:09:51,497 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 [2019-11-27 13:09:53,556 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 [2019-11-27 13:09:53,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 13:09:59,776 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 [2019-11-27 13:09:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 13:09:59,784 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 13:10:03,773 WARN L860 $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 true [2019-11-27 13:10:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 13:10:03,956 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067134128] [2019-11-27 13:10:03,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 13:10:03,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-27 13:10:03,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153602057] [2019-11-27 13:10:03,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-27 13:10:03,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 13:10:03,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-27 13:10:03,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2019-11-27 13:10:03,960 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-27 13:10:08,240 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 [2019-11-27 13:10:10,303 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 [2019-11-27 13:10:12,369 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 [2019-11-27 13:10:12,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 13:10:12,375 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-27 13:10:12,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 13:10:12,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-27 13:10:12,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 13:10:12,376 INFO L225 Difference]: With dead ends: 9 [2019-11-27 13:10:12,376 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 13:10:12,377 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 [2019-11-27 13:10:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 13:10:12,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 13:10:12,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 13:10:12,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 13:10:12,378 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-27 13:10:12,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 13:10:12,379 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 13:10:12,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-27 13:10:12,379 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 13:10:12,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 13:10:12,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 13:10:12,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 13:10:25,149 WARN L192 SmtUtils]: Spent 12.52 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-27 13:11:07,557 WARN L192 SmtUtils]: Spent 42.40 s on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2019-11-27 13:11:07,565 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 13:11:07,566 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-27 13:11:07,566 INFO L246 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-27 13:11:07,566 INFO L246 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-27 13:11:07,566 INFO L242 CegarLoopResult]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-27 13:11:07,566 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 13:11:07,566 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 13:11:07,566 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 13:11:07,567 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-27 13:11:07,567 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 (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (fp.sub currentRoundingMode (fp.sub currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) (fp.div currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) currentRoundingMode 2.0))))) (_ bv0 32))) (= (_ 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))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-27 13:11:07,567 INFO L246 CegarLoopResult]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-27 13:11:07,567 INFO L246 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-27 13:11:07,568 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))))) [2019-11-27 13:11:07,568 INFO L246 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-27 13:11:07,568 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)) [2019-11-27 13:11:07,578 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,585 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,587 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,590 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,591 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 13:11:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,595 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,596 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,597 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,597 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 13:11:07,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,599 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 01:11:07 BoogieIcfgContainer [2019-11-27 13:11:07,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 13:11:07,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 13:11:07,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 13:11:07,603 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 13:11:07,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 01:08:39" (3/4) ... [2019-11-27 13:11:07,608 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 13:11:07,617 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-27 13:11:07,617 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 13:11:07,617 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 13:11:07,663 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 13:11:07,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 13:11:07,666 INFO L168 Benchmark]: Toolchain (without parser) took 153681.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -67.9 MB). Peak memory consumption was 62.1 MB. Max. memory is 11.5 GB. [2019-11-27 13:11:07,667 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-27 13:11:07,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.34 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-27 13:11:07,668 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 13:11:07,669 INFO L168 Benchmark]: Boogie Preprocessor took 29.20 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. [2019-11-27 13:11:07,670 INFO L168 Benchmark]: RCFGBuilder took 4973.02 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-11-27 13:11:07,671 INFO L168 Benchmark]: TraceAbstraction took 148229.18 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: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2019-11-27 13:11:07,672 INFO L168 Benchmark]: Witness Printer took 60.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 13:11:07,676 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 291.34 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -176.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.20 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 4973.02 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: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 148229.18 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: 71.1 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. * Witness Printer took 60.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - 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 - 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 [2019-11-27 13:11:07,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,696 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,697 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,698 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,700 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 [2019-11-27 13:11:07,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,702 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 13:11:07,703 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,704 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,707 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,708 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 13:11:07,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 13:11:07,709 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 13:11:07,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,709 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,710 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,711 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,712 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 13:11:07,713 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || ((((forall v_ULTIMATE.start_main_~a~0_8 : C_DOUBLE :: ~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, 0bv32), v_ULTIMATE.start_main_~a~0_8), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, v_ULTIMATE.start_main_~a~0_8, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))))) == 0bv32) && 0bv32 == r) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 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: 93.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 48.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 54.9s, HoareTripleCheckerStatistics: 12 SDtfs, 19 SDslu, 14 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 31.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 48.7s 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, 91 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 54.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 41.0s 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...