./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 3c39aff9 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 0.1.24-3c39aff [2019-11-27 18:43:46,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 18:43:46,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 18:43:46,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 18:43:46,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 18:43:46,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 18:43:46,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 18:43:46,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 18:43:46,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 18:43:46,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 18:43:46,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 18:43:46,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 18:43:46,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 18:43:46,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 18:43:46,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 18:43:46,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 18:43:46,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 18:43:46,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 18:43:46,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 18:43:46,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 18:43:46,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 18:43:46,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 18:43:46,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 18:43:46,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 18:43:46,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 18:43:46,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 18:43:46,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 18:43:46,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 18:43:46,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 18:43:46,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 18:43:46,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 18:43:46,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 18:43:46,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 18:43:46,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 18:43:46,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 18:43:46,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 18:43:46,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 18:43:46,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 18:43:46,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 18:43:46,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 18:43:46,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 18:43:46,451 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 18:43:46,466 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 18:43:46,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 18:43:46,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 18:43:46,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 18:43:46,468 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 18:43:46,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 18:43:46,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 18:43:46,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 18:43:46,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 18:43:46,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 18:43:46,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 18:43:46,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 18:43:46,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 18:43:46,471 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 18:43:46,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 18:43:46,471 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 18:43:46,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 18:43:46,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 18:43:46,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 18:43:46,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 18:43:46,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 18:43:46,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 18:43:46,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 18:43:46,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 18:43:46,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 18:43:46,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 18:43:46,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 18:43:46,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 18:43:46,475 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 18:43:46,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 18:43:46,806 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 18:43:46,809 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 18:43:46,811 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 18:43:46,811 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 18:43:46,812 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 18:43:46,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f49382c/c6814d7b124c452fbf94c56618129dbd/FLAG2f617996d [2019-11-27 18:43:47,257 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 18:43:47,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 18:43:47,263 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f49382c/c6814d7b124c452fbf94c56618129dbd/FLAG2f617996d [2019-11-27 18:43:47,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f49382c/c6814d7b124c452fbf94c56618129dbd [2019-11-27 18:43:47,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 18:43:47,707 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 18:43:47,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 18:43:47,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 18:43:47,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 18:43:47,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:47,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e137d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47, skipping insertion in model container [2019-11-27 18:43:47,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:47,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 18:43:47,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 18:43:47,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 18:43:47,912 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 18:43:47,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 18:43:47,938 INFO L208 MainTranslator]: Completed translation [2019-11-27 18:43:47,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47 WrapperNode [2019-11-27 18:43:47,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 18:43:47,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 18:43:47,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 18:43:47,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 18:43:47,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:47,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 18:43:48,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 18:43:48,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 18:43:48,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 18:43:48,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,062 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (1/1) ... [2019-11-27 18:43:48,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 18:43:48,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 18:43:48,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 18:43:48,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 18:43:48,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (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 18:43:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 18:43:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 18:43:48,369 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 18:43:48,369 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 18:43:48,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:43:48 BoogieIcfgContainer [2019-11-27 18:43:48,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 18:43:48,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 18:43:48,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 18:43:48,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 18:43:48,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:43:47" (1/3) ... [2019-11-27 18:43:48,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489fd887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:43:48, skipping insertion in model container [2019-11-27 18:43:48,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:47" (2/3) ... [2019-11-27 18:43:48,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489fd887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:43:48, skipping insertion in model container [2019-11-27 18:43:48,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:43:48" (3/3) ... [2019-11-27 18:43:48,381 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-27 18:43:48,393 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 18:43:48,401 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-27 18:43:48,425 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-27 18:43:48,489 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 18:43:48,491 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 18:43:48,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 18:43:48,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 18:43:48,492 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 18:43:48,492 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 18:43:48,492 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 18:43:48,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 18:43:48,531 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-27 18:43:48,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 18:43:48,541 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 18:43:48,543 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 18:43:48,544 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 18:43:48,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 18:43:48,553 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-27 18:43:48,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 18:43:48,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696123671] [2019-11-27 18:43:48,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 18:43:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 18:43:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 18:43:48,748 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 18:43:48,749 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 18:43:48,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 06:43:48 BoogieIcfgContainer [2019-11-27 18:43:48,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 18:43:48,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 18:43:48,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 18:43:48,772 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 18:43:48,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:43:48" (3/4) ... [2019-11-27 18:43:48,777 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 18:43:48,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 18:43:48,780 INFO L168 Benchmark]: Toolchain (without parser) took 1071.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -114.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 18:43:48,781 INFO L168 Benchmark]: CDTParser took 0.26 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 18:43:48,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.88 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 18:43:48,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 18:43:48,785 INFO L168 Benchmark]: Boogie Preprocessor took 39.79 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 18:43:48,786 INFO L168 Benchmark]: RCFGBuilder took 300.32 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-11-27 18:43:48,787 INFO L168 Benchmark]: TraceAbstraction took 398.68 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-27 18:43:48,788 INFO L168 Benchmark]: Witness Printer took 6.45 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 18:43:48,792 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.88 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.79 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 300.32 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 398.68 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.45 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: 0.2s, 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 0.1.24-3c39aff [2019-11-27 18:43:50,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 18:43:50,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 18:43:50,857 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 18:43:50,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 18:43:50,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 18:43:50,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 18:43:50,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 18:43:50,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 18:43:50,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 18:43:50,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 18:43:50,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 18:43:50,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 18:43:50,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 18:43:50,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 18:43:50,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 18:43:50,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 18:43:50,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 18:43:50,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 18:43:50,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 18:43:50,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 18:43:50,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 18:43:50,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 18:43:50,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 18:43:50,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 18:43:50,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 18:43:50,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 18:43:50,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 18:43:50,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 18:43:50,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 18:43:50,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 18:43:50,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 18:43:50,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 18:43:50,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 18:43:50,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 18:43:50,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 18:43:50,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 18:43:50,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 18:43:50,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 18:43:50,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 18:43:50,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 18:43:50,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 18:43:50,921 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 18:43:50,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 18:43:50,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 18:43:50,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 18:43:50,923 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 18:43:50,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 18:43:50,924 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 18:43:50,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 18:43:50,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 18:43:50,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 18:43:50,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 18:43:50,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 18:43:50,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 18:43:50,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 18:43:50,926 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 18:43:50,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 18:43:50,927 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 18:43:50,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 18:43:50,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 18:43:50,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 18:43:50,928 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 18:43:50,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 18:43:50,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 18:43:50,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 18:43:50,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 18:43:50,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 18:43:50,930 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 18:43:50,930 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 18:43:50,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 18:43:50,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 18:43:50,931 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 18:43:51,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 18:43:51,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 18:43:51,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 18:43:51,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 18:43:51,313 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 18:43:51,315 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 18:43:51,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cb899b2/dffb918e1f284ad581e73f9ce7adf00b/FLAG98390f341 [2019-11-27 18:43:51,789 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 18:43:51,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-27 18:43:51,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cb899b2/dffb918e1f284ad581e73f9ce7adf00b/FLAG98390f341 [2019-11-27 18:43:52,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9cb899b2/dffb918e1f284ad581e73f9ce7adf00b [2019-11-27 18:43:52,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 18:43:52,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 18:43:52,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 18:43:52,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 18:43:52,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 18:43:52,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6176253 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52, skipping insertion in model container [2019-11-27 18:43:52,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 18:43:52,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 18:43:52,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 18:43:52,465 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 18:43:52,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 18:43:52,499 INFO L208 MainTranslator]: Completed translation [2019-11-27 18:43:52,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52 WrapperNode [2019-11-27 18:43:52,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 18:43:52,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 18:43:52,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 18:43:52,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 18:43:52,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,598 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 18:43:52,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 18:43:52,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 18:43:52,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 18:43:52,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (1/1) ... [2019-11-27 18:43:52,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 18:43:52,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 18:43:52,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 18:43:52,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 18:43:52,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (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 18:43:52,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 18:43:52,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 18:43:57,476 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 18:43:57,476 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-27 18:43:57,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:43:57 BoogieIcfgContainer [2019-11-27 18:43:57,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 18:43:57,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 18:43:57,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 18:43:57,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 18:43:57,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 06:43:52" (1/3) ... [2019-11-27 18:43:57,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ffb3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:43:57, skipping insertion in model container [2019-11-27 18:43:57,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 06:43:52" (2/3) ... [2019-11-27 18:43:57,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ffb3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 06:43:57, skipping insertion in model container [2019-11-27 18:43:57,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:43:57" (3/3) ... [2019-11-27 18:43:57,486 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-27 18:43:57,496 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 18:43:57,504 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-27 18:43:57,517 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-27 18:43:57,549 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 18:43:57,549 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 18:43:57,549 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 18:43:57,549 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 18:43:57,550 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 18:43:57,550 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 18:43:57,550 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 18:43:57,550 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 18:43:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-27 18:43:57,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-27 18:43:57,569 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 18:43:57,570 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-27 18:43:57,571 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 18:43:57,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 18:43:57,576 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-27 18:43:57,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 18:43:57,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417395795] [2019-11-27 18:43:57,586 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 18:44:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 18:44:00,366 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-27 18:44:00,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 18:44:02,927 WARN L192 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-27 18:44:21,625 WARN L192 SmtUtils]: Spent 8.27 s on a formula simplification that was a NOOP. DAG size: 25 [2019-11-27 18:44:23,656 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 18:44:23,657 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 18:44:28,097 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 18:44:30,156 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 18:44:41,584 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-27 18:44:41,586 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 18:44:41,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417395795] [2019-11-27 18:44:41,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 18:44:41,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-27 18:44:41,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583700519] [2019-11-27 18:44:41,594 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 18:44:41,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 18:44:41,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 18:44:41,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=22, Unknown=10, NotChecked=10, Total=56 [2019-11-27 18:44:41,612 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-27 18:44:47,564 WARN L192 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-27 18:44:52,394 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 18:44:55,316 WARN L192 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 5 [2019-11-27 18:45:24,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 18:45:24,756 INFO L93 Difference]: Finished difference Result 32 states and 47 transitions. [2019-11-27 18:45:24,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-27 18:45:24,816 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-27 18:45:24,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 18:45:24,825 INFO L225 Difference]: With dead ends: 32 [2019-11-27 18:45:24,825 INFO L226 Difference]: Without dead ends: 14 [2019-11-27 18:45:24,829 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.9s TimeCoverageRelationStatistics Valid=24, Invalid=42, Unknown=14, NotChecked=30, Total=110 [2019-11-27 18:45:24,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-27 18:45:24,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2019-11-27 18:45:24,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-27 18:45:24,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-27 18:45:24,865 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-27 18:45:24,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 18:45:24,866 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-27 18:45:24,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 18:45:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-27 18:45:24,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-27 18:45:24,867 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 18:45:24,867 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 18:45:25,080 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 18:45:25,081 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 18:45:25,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 18:45:25,082 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-27 18:45:25,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 18:45:25,084 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668638589] [2019-11-27 18:45:25,084 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 18:45:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 18:45:25,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-27 18:45:25,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 18:45:27,510 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 18:45:29,574 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 18:45:29,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 18:45:31,645 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 18:45:33,706 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 18:45:33,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 18:45:39,900 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 18:45:39,905 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 18:45:39,905 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 18:45:42,014 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-27 18:45:44,079 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 18:45:44,258 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 18:45:44,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668638589] [2019-11-27 18:45:44,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 18:45:44,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-27 18:45:44,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373594278] [2019-11-27 18:45:44,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-27 18:45:44,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 18:45:44,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-27 18:45:44,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-27 18:45:44,262 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-27 18:45:48,514 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 18:45:50,573 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 18:45:52,638 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 18:45:52,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 18:45:52,642 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-27 18:45:52,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 18:45:52,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-27 18:45:52,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 18:45:52,642 INFO L225 Difference]: With dead ends: 9 [2019-11-27 18:45:52,642 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 18:45:52,644 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=15, Invalid=5, Unknown=10, NotChecked=42, Total=72 [2019-11-27 18:45:52,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 18:45:52,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 18:45:52,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 18:45:52,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 18:45:52,645 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-27 18:45:52,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 18:45:52,645 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 18:45:52,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-27 18:45:52,645 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 18:45:52,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 18:45:52,846 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 18:45:52,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 18:46:23,821 WARN L192 SmtUtils]: Spent 30.91 s on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2019-11-27 18:47:08,568 WARN L192 SmtUtils]: Spent 44.74 s on a formula simplification. DAG size of input: 42 DAG size of output: 30 [2019-11-27 18:47:08,577 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 18:47:08,578 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-27 18:47:08,578 INFO L246 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-27 18:47:08,578 INFO L246 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-27 18:47:08,578 INFO L242 CegarLoopResult]: At program point L36(lines 19 37) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-27 18:47:08,578 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 18:47:08,579 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 18:47:08,579 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 18:47:08,579 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-27 18:47:08,579 INFO L242 CegarLoopResult]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (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)) (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) [2019-11-27 18:47:08,579 INFO L246 CegarLoopResult]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-27 18:47:08,579 INFO L246 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-27 18:47:08,580 INFO L242 CegarLoopResult]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ 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 18:47:08,580 INFO L246 CegarLoopResult]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-27 18:47:08,580 INFO L242 CegarLoopResult]: At program point L12-5(lines 11 17) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-27 18:47:08,590 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,594 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,596 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,597 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,598 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,601 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,602 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,602 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 18:47:08,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,606 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,607 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,608 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 18:47:08,608 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,609 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,610 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,611 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,612 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 06:47:08 BoogieIcfgContainer [2019-11-27 18:47:08,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 18:47:08,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 18:47:08,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 18:47:08,616 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 18:47:08,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 06:43:57" (3/4) ... [2019-11-27 18:47:08,623 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 18:47:08,636 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-27 18:47:08,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 18:47:08,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 18:47:08,696 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 18:47:08,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 18:47:08,698 INFO L168 Benchmark]: Toolchain (without parser) took 196496.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -69.9 MB). Peak memory consumption was 70.6 MB. Max. memory is 11.5 GB. [2019-11-27 18:47:08,699 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 18:47:08,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.18 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 18:47:08,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-27 18:47:08,702 INFO L168 Benchmark]: Boogie Preprocessor took 26.00 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 18:47:08,703 INFO L168 Benchmark]: RCFGBuilder took 4852.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-27 18:47:08,704 INFO L168 Benchmark]: TraceAbstraction took 191137.50 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: 79.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 11.5 GB. [2019-11-27 18:47:08,705 INFO L168 Benchmark]: Witness Printer took 80.61 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 18:47:08,709 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 297.18 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.00 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 4852.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 191137.50 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: 79.0 MB). Peak memory consumption was 79.0 MB. Max. memory is 11.5 GB. * Witness Printer took 80.61 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 18:47:08,729 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,731 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,732 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,732 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,732 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,732 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,733 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 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: !(cond == 0bv32) - InvariantResult [Line: 26]: Loop Invariant [2019-11-27 18:47:08,734 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,734 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,735 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,735 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 18:47:08,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,738 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-27 18:47:08,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-27 18:47:08,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 18:47:08,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 18:47:08,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((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) || !(cond == 0bv32) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 115.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 51.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 75.7s, HoareTripleCheckerStatistics: 15 SDtfs, 13 SDslu, 24 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 33.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 66.7s 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 87 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 36 FormulaSimplificationTreeSizeReductionInter, 75.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 60.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 3 QuantifiedInterpolants, 2103 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...