./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 701f399f 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-64bit-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 64bit --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-64bit-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 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-701f399 [2019-11-22 09:34:18,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:34:18,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:34:18,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:34:18,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:34:18,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:34:18,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:34:18,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:34:18,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:34:18,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:34:18,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:34:18,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:34:18,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:34:18,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:34:18,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:34:18,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:34:18,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:34:18,695 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:34:18,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:34:18,702 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:34:18,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:34:18,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:34:18,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:34:18,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:34:18,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:34:18,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:34:18,719 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:34:18,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:34:18,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:34:18,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:34:18,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:34:18,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:34:18,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:34:18,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:34:18,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:34:18,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:34:18,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:34:18,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:34:18,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:34:18,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:34:18,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:34:18,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-22 09:34:18,770 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:34:18,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:34:18,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:34:18,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:34:18,779 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:34:18,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:34:18,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:34:18,780 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:34:18,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 09:34:18,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:34:18,781 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 09:34:18,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 09:34:18,782 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:34:18,782 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 09:34:18,782 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:34:18,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:34:18,783 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:34:18,783 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:34:18,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:34:18,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:34:18,784 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:34:18,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 09:34:18,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 09:34:18,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 09:34:18,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 09:34:18,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:34:18,786 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 09:34:19,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:34:19,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:34:19,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:34:19,155 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:34:19,156 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:34:19,156 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 09:34:19,230 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c12aca05/7622060481c4443f9766bc77372b3638/FLAGebdcd333d [2019-11-22 09:34:19,684 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:34:19,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 09:34:19,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c12aca05/7622060481c4443f9766bc77372b3638/FLAGebdcd333d [2019-11-22 09:34:20,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c12aca05/7622060481c4443f9766bc77372b3638 [2019-11-22 09:34:20,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:34:20,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 09:34:20,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:20,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:34:20,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:34:20,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5577c5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20, skipping insertion in model container [2019-11-22 09:34:20,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:34:20,105 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:34:20,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:20,315 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:34:20,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:20,354 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:34:20,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20 WrapperNode [2019-11-22 09:34:20,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:20,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:20,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 09:34:20,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 09:34:20,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:20,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:34:20,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:34:20,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:34:20,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (1/1) ... [2019-11-22 09:34:20,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:34:20,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:34:20,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:34:20,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:34:20,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (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 [2019-11-22 09:34:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:34:20,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:34:20,681 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:34:20,682 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 09:34:20,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:20 BoogieIcfgContainer [2019-11-22 09:34:20,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:34:20,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:34:20,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:34:20,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:34:20,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:20" (1/3) ... [2019-11-22 09:34:20,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ff7123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:20, skipping insertion in model container [2019-11-22 09:34:20,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:20" (2/3) ... [2019-11-22 09:34:20,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ff7123 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:20, skipping insertion in model container [2019-11-22 09:34:20,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:20" (3/3) ... [2019-11-22 09:34:20,692 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 09:34:20,702 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:34:20,709 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 09:34:20,721 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 09:34:20,749 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:34:20,749 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 09:34:20,750 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:34:20,750 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:34:20,750 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:34:20,751 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:34:20,751 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:34:20,751 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:34:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-22 09:34:20,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-22 09:34:20,784 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:34:20,785 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-22 09:34:20,786 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:34:20,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:34:20,793 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-22 09:34:20,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-22 09:34:20,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209788332] [2019-11-22 09:34:20,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-22 09:34:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 09:34:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 09:34:20,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-22 09:34:20,930 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 09:34:20,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:34:20 BoogieIcfgContainer [2019-11-22 09:34:20,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 09:34:20,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 09:34:20,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 09:34:20,950 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 09:34:20,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:20" (3/4) ... [2019-11-22 09:34:20,964 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 09:34:20,965 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 09:34:20,968 INFO L168 Benchmark]: Toolchain (without parser) took 907.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -124.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:34:20,969 INFO L168 Benchmark]: CDTParser took 0.63 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. [2019-11-22 09:34:20,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.41 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:20,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:20,972 INFO L168 Benchmark]: Boogie Preprocessor took 28.31 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. [2019-11-22 09:34:20,973 INFO L168 Benchmark]: RCFGBuilder took 215.67 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:20,974 INFO L168 Benchmark]: TraceAbstraction took 264.92 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-22 09:34:20,975 INFO L168 Benchmark]: Witness Printer took 14.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:34:20,980 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.63 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.41 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 82.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.31 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 215.67 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.92 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 14.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-701f399 [2019-11-22 09:34:22,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:34:22,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:34:22,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:34:22,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:34:22,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:34:22,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:34:22,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:34:22,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:34:22,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:34:22,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:34:22,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:34:22,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:34:22,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:34:22,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:34:22,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:34:22,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:34:22,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:34:22,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:34:22,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:34:22,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:34:22,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:34:22,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:34:22,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:34:22,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:34:22,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:34:22,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:34:22,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:34:23,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:34:23,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:34:23,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:34:23,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:34:23,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:34:23,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:34:23,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:34:23,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:34:23,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:34:23,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:34:23,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:34:23,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:34:23,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:34:23,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-22 09:34:23,047 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:34:23,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:34:23,048 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:34:23,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:34:23,049 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:34:23,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:34:23,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:34:23,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 09:34:23,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:34:23,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 09:34:23,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:34:23,051 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:34:23,051 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:34:23,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 09:34:23,052 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:34:23,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 09:34:23,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:34:23,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:34:23,053 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:34:23,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:34:23,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:34:23,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:34:23,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:34:23,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 09:34:23,055 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:34:23,055 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:34:23,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 09:34:23,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:34:23,056 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-22 09:34:23,056 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 09:34:23,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:34:23,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:34:23,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:34:23,368 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:34:23,369 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:34:23,369 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 09:34:23,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73596aaa2/0bef60c609d94fef983ef159042806bc/FLAGf2acd0b1c [2019-11-22 09:34:23,866 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:34:23,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 09:34:23,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73596aaa2/0bef60c609d94fef983ef159042806bc/FLAGf2acd0b1c [2019-11-22 09:34:24,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73596aaa2/0bef60c609d94fef983ef159042806bc [2019-11-22 09:34:24,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:34:24,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 09:34:24,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:24,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:34:24,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:34:24,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f2aa46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24, skipping insertion in model container [2019-11-22 09:34:24,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:34:24,307 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:34:24,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:24,530 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:34:24,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:34:24,573 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:34:24,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24 WrapperNode [2019-11-22 09:34:24,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:34:24,574 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:24,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 09:34:24,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 09:34:24,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 09:34:24,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:34:24,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:34:24,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:34:24,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (1/1) ... [2019-11-22 09:34:24,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:34:24,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:34:24,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:34:24,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:34:24,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (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 [2019-11-22 09:34:24,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:34:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:34:29,629 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:34:29,629 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 09:34:29,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:29 BoogieIcfgContainer [2019-11-22 09:34:29,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:34:29,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:34:29,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:34:29,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:34:29,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:34:24" (1/3) ... [2019-11-22 09:34:29,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d04e92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:29, skipping insertion in model container [2019-11-22 09:34:29,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:34:24" (2/3) ... [2019-11-22 09:34:29,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d04e92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:34:29, skipping insertion in model container [2019-11-22 09:34:29,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:29" (3/3) ... [2019-11-22 09:34:29,639 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 09:34:29,648 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:34:29,655 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 09:34:29,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 09:34:29,691 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:34:29,691 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 09:34:29,692 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:34:29,692 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:34:29,692 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:34:29,692 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:34:29,693 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:34:29,693 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:34:29,705 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-22 09:34:29,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-22 09:34:29,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:34:29,711 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-22 09:34:29,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:34:29,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:34:29,717 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-22 09:34:29,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:34:29,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514183840] [2019-11-22 09:34:29,727 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 [2019-11-22 09:34:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:34:32,881 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:34:32,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:34:35,981 WARN L192 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-22 09:34:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:34:40,598 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:34:42,863 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 [2019-11-22 09:34:44,918 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 [2019-11-22 09:34:56,322 WARN L192 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-22 09:34:56,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:34:56,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514183840] [2019-11-22 09:34:56,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:34:56,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-22 09:34:56,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343358398] [2019-11-22 09:34:56,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 09:34:56,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:34:56,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 09:34:56,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=26, Unknown=6, NotChecked=10, Total=56 [2019-11-22 09:34:56,347 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-22 09:35:01,990 WARN L192 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-22 09:35:06,738 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 [2019-11-22 09:35:38,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:35:38,655 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-22 09:35:38,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:35:38,707 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-22 09:35:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:35:38,716 INFO L225 Difference]: With dead ends: 29 [2019-11-22 09:35:38,716 INFO L226 Difference]: Without dead ends: 11 [2019-11-22 09:35:38,719 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.3s TimeCoverageRelationStatistics Valid=24, Invalid=47, Unknown=9, NotChecked=30, Total=110 [2019-11-22 09:35:38,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-22 09:35:38,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-22 09:35:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-22 09:35:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-22 09:35:38,764 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-22 09:35:38,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:35:38,765 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-22 09:35:38,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 09:35:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-22 09:35:38,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-22 09:35:38,767 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:35:38,767 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:35:38,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-22 09:35:38,969 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 09:35:38,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:35:38,970 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-22 09:35:38,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:35:38,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244852482] [2019-11-22 09:35:38,972 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 [2019-11-22 09:35:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:35:39,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:35:39,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:35:41,422 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 [2019-11-22 09:35:43,483 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 [2019-11-22 09:35:43,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:35:45,554 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 [2019-11-22 09:35:47,611 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 [2019-11-22 09:35:47,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:35:53,816 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 [2019-11-22 09:35:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:35:53,826 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:35:55,901 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 [2019-11-22 09:35:57,986 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 [2019-11-22 09:35:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:35:58,196 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244852482] [2019-11-22 09:35:58,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:35:58,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 09:35:58,196 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725789113] [2019-11-22 09:35:58,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:35:58,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:35:58,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:35:58,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-22 09:35:58,198 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-22 09:36:02,463 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 [2019-11-22 09:36:04,538 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 [2019-11-22 09:36:06,600 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 [2019-11-22 09:36:06,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:06,605 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-22 09:36:06,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:06,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-22 09:36:06,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:06,606 INFO L225 Difference]: With dead ends: 9 [2019-11-22 09:36:06,606 INFO L226 Difference]: Without dead ends: 0 [2019-11-22 09:36:06,607 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 [2019-11-22 09:36:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-22 09:36:06,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-22 09:36:06,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-22 09:36:06,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-22 09:36:06,608 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-22 09:36:06,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:06,608 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-22 09:36:06,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:36:06,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-22 09:36:06,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-22 09:36:06,809 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-22 09:36:06,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-22 09:36:16,472 WARN L192 SmtUtils]: Spent 9.61 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-22 09:36:59,836 WARN L192 SmtUtils]: Spent 43.36 s on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2019-11-22 09:36:59,853 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-22 09:36:59,854 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 09:36:59,854 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-22 09:36:59,854 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-22 09:36:59,854 INFO L440 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-22 09:36:59,854 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-22 09:36:59,854 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-22 09:36:59,854 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-22 09:36:59,855 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 09:36:59,855 INFO L440 ceAbstractionStarter]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (fp.sub currentRoundingMode (fp.sub currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) (fp.div currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) currentRoundingMode 2.0))))) (_ bv0 32))) (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-22 09:36:59,855 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-22 09:36:59,855 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-22 09:36:59,856 INFO L440 ceAbstractionStarter]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-22 09:36:59,856 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-22 09:36:59,856 INFO L440 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-22 09:36:59,863 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,866 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,867 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,876 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:36:59,877 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:36:59,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 09:36:59,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:36:59,884 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:36:59,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 09:36:59,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:36:59 BoogieIcfgContainer [2019-11-22 09:36:59,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 09:36:59,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 09:36:59,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 09:36:59,894 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 09:36:59,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:34:29" (3/4) ... [2019-11-22 09:36:59,899 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-22 09:36:59,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-22 09:36:59,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-22 09:36:59,912 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-22 09:36:59,960 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 09:36:59,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 09:36:59,963 INFO L168 Benchmark]: Toolchain (without parser) took 155696.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -74.0 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:59,963 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:36:59,964 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.76 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:59,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:59,965 INFO L168 Benchmark]: Boogie Preprocessor took 35.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:36:59,966 INFO L168 Benchmark]: RCFGBuilder took 4921.46 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:59,967 INFO L168 Benchmark]: TraceAbstraction took 150261.54 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: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2019-11-22 09:36:59,967 INFO L168 Benchmark]: Witness Printer took 67.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:36:59,973 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.76 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 98.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.64 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 4921.46 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 150261.54 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: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation 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 [2019-11-22 09:36:59,991 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,992 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,993 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,994 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,994 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,994 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 26]: Loop Invariant [2019-11-22 09:36:59,997 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:36:59,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:36:59,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:36:59,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 09:36:59,998 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:36:59,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,001 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 09:37:00,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:37:00,003 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 09:37:00,003 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 09:37:00,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,004 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 09:37:00,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || ((((forall v_ULTIMATE.start_main_~a~0_8 : C_DOUBLE :: ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32), v_ULTIMATE.start_main_~a~0_8), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, v_ULTIMATE.start_main_~a~0_8, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))))) == 0bv32) && 0bv32 == r) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 150.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 50.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 53.0s, HoareTripleCheckerStatistics: 12 SDtfs, 19 SDslu, 12 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 33.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 50.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 91 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 52.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 42.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 2 QuantifiedInterpolants, 1979 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...