./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 6b5699aa 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 0.1.24-6b5699a [2019-11-21 21:18:01,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:18:01,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:18:01,870 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:18:01,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:18:01,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:18:01,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:18:01,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:18:01,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:18:01,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:18:01,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:18:01,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:18:01,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:18:01,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:18:01,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:18:01,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:18:01,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:18:01,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:18:01,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:18:01,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:18:01,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:18:01,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:18:01,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:18:01,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:18:01,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:18:01,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:18:01,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:18:01,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:18:01,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:18:01,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:18:01,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:18:01,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:18:01,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:18:01,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:18:01,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:18:01,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:18:01,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:18:01,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:18:01,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:18:01,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:18:01,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:18:01,951 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-21 21:18:01,986 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:18:01,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:18:01,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:18:01,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:18:01,995 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:18:01,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:18:01,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 21:18:01,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:18:01,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-21 21:18:01,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:18:01,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-21 21:18:01,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-21 21:18:01,997 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:18:01,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-21 21:18:02,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:18:02,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:18:02,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:18:02,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:18:02,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:18:02,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:18:02,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:18:02,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-21 21:18:02,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-21 21:18:02,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-21 21:18:02,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-21 21:18:02,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 21:18:02,004 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 [2019-11-21 21:18:02,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:18:02,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:18:02,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:18:02,348 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:18:02,348 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:18:02,349 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:18:02,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99823ac49/85fbb60aa83845668174815c7aca1f95/FLAGde452522c [2019-11-21 21:18:02,853 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:18:02,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:18:02,867 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99823ac49/85fbb60aa83845668174815c7aca1f95/FLAGde452522c [2019-11-21 21:18:03,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99823ac49/85fbb60aa83845668174815c7aca1f95 [2019-11-21 21:18:03,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:18:03,226 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-21 21:18:03,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:18:03,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:18:03,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:18:03,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e3f9ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03, skipping insertion in model container [2019-11-21 21:18:03,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:18:03,259 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:18:03,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:18:03,433 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:18:03,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:18:03,465 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:18:03,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03 WrapperNode [2019-11-21 21:18:03,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:18:03,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-21 21:18:03,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-21 21:18:03,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-21 21:18:03,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-21 21:18:03,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:18:03,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:18:03,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:18:03,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (1/1) ... [2019-11-21 21:18:03,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:18:03,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:18:03,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:18:03,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:18:03,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (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 [2019-11-21 21:18:03,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:18:03,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:18:03,797 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:18:03,798 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-21 21:18:03,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:18:03 BoogieIcfgContainer [2019-11-21 21:18:03,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:18:03,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:18:03,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:18:03,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:18:03,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:18:03" (1/3) ... [2019-11-21 21:18:03,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654fbdaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:18:03, skipping insertion in model container [2019-11-21 21:18:03,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:03" (2/3) ... [2019-11-21 21:18:03,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@654fbdaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:18:03, skipping insertion in model container [2019-11-21 21:18:03,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:18:03" (3/3) ... [2019-11-21 21:18:03,808 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-21 21:18:03,819 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:18:03,826 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-21 21:18:03,838 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-21 21:18:03,860 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:18:03,860 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-21 21:18:03,860 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:18:03,861 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:18:03,861 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:18:03,861 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:18:03,861 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:18:03,861 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:18:03,874 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-21 21:18:03,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-21 21:18:03,880 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:18:03,881 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-21 21:18:03,881 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-21 21:18:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:18:03,887 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-21 21:18:03,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-21 21:18:03,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437797566] [2019-11-21 21:18:03,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-21 21:18:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 21:18:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 21:18:04,000 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-21 21:18:04,001 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-21 21:18:04,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:18:04 BoogieIcfgContainer [2019-11-21 21:18:04,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 21:18:04,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 21:18:04,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 21:18:04,019 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 21:18:04,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:18:03" (3/4) ... [2019-11-21 21:18:04,024 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-21 21:18:04,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 21:18:04,028 INFO L168 Benchmark]: Toolchain (without parser) took 801.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:18:04,029 INFO L168 Benchmark]: CDTParser took 0.57 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. [2019-11-21 21:18:04,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.01 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:18:04,032 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:18:04,032 INFO L168 Benchmark]: Boogie Preprocessor took 19.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:18:04,033 INFO L168 Benchmark]: RCFGBuilder took 229.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-21 21:18:04,034 INFO L168 Benchmark]: TraceAbstraction took 217.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2019-11-21 21:18:04,035 INFO L168 Benchmark]: Witness Printer took 6.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:18:04,040 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 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 239.01 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 83.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -161.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 217.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.21 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-21 21:18:05,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:18:06,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:18:06,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:18:06,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:18:06,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:18:06,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:18:06,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:18:06,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:18:06,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:18:06,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:18:06,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:18:06,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:18:06,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:18:06,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:18:06,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:18:06,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:18:06,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:18:06,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:18:06,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:18:06,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:18:06,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:18:06,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:18:06,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:18:06,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:18:06,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:18:06,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:18:06,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:18:06,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:18:06,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:18:06,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:18:06,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:18:06,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:18:06,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:18:06,047 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:18:06,047 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:18:06,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:18:06,048 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:18:06,048 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:18:06,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:18:06,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:18:06,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-21 21:18:06,070 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:18:06,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:18:06,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:18:06,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:18:06,074 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:18:06,074 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:18:06,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:18:06,075 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-21 21:18:06,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:18:06,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-21 21:18:06,076 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-21 21:18:06,077 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 21:18:06,077 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 21:18:06,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-21 21:18:06,078 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:18:06,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-21 21:18:06,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:18:06,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:18:06,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:18:06,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:18:06,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:18:06,080 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:18:06,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:18:06,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-21 21:18:06,081 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 21:18:06,081 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 21:18:06,081 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-21 21:18:06,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 21:18:06,082 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-21 21:18:06,082 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 [2019-11-21 21:18:06,374 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:18:06,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:18:06,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:18:06,399 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:18:06,399 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:18:06,400 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:18:06,475 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beac01743/731cd261c99640099de7a847f1dca4e9/FLAGdd92d6b64 [2019-11-21 21:18:06,981 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:18:06,981 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:18:06,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beac01743/731cd261c99640099de7a847f1dca4e9/FLAGdd92d6b64 [2019-11-21 21:18:07,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beac01743/731cd261c99640099de7a847f1dca4e9 [2019-11-21 21:18:07,293 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:18:07,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-21 21:18:07,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:18:07,298 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:18:07,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:18:07,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d40e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07, skipping insertion in model container [2019-11-21 21:18:07,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:18:07,336 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:18:07,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:18:07,529 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:18:07,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:18:07,564 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:18:07,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07 WrapperNode [2019-11-21 21:18:07,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:18:07,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-21 21:18:07,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-21 21:18:07,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-21 21:18:07,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-21 21:18:07,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:18:07,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:18:07,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:18:07,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (1/1) ... [2019-11-21 21:18:07,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:18:07,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:18:07,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:18:07,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:18:07,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (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 [2019-11-21 21:18:07,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:18:07,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:18:12,800 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:18:12,800 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-21 21:18:12,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:18:12 BoogieIcfgContainer [2019-11-21 21:18:12,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:18:12,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:18:12,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:18:12,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:18:12,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:18:07" (1/3) ... [2019-11-21 21:18:12,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae9f294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:18:12, skipping insertion in model container [2019-11-21 21:18:12,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:18:07" (2/3) ... [2019-11-21 21:18:12,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae9f294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:18:12, skipping insertion in model container [2019-11-21 21:18:12,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:18:12" (3/3) ... [2019-11-21 21:18:12,810 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-21 21:18:12,820 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:18:12,827 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-21 21:18:12,841 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-21 21:18:12,870 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:18:12,871 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-21 21:18:12,871 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:18:12,871 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:18:12,872 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:18:12,873 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:18:12,873 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:18:12,874 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:18:12,888 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-21 21:18:12,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-21 21:18:12,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:18:12,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-21 21:18:12,894 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-21 21:18:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:18:12,899 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-21 21:18:12,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:18:12,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276948083] [2019-11-21 21:18:12,909 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 [2019-11-21 21:18:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:18:16,025 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:18:16,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:18:19,412 WARN L192 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-21 21:18:21,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:18:21,426 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:18:23,707 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 [2019-11-21 21:18:25,766 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 [2019-11-21 21:18:38,319 WARN L192 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-21 21:18:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:18:38,322 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276948083] [2019-11-21 21:18:38,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:18:38,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-21 21:18:38,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828022123] [2019-11-21 21:18:38,328 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 21:18:38,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:18:38,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 21:18:38,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=26, Unknown=6, NotChecked=10, Total=56 [2019-11-21 21:18:38,341 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-21 21:18:45,391 WARN L192 SmtUtils]: Spent 3.97 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-21 21:18:51,497 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 [2019-11-21 21:19:26,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:19:26,135 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-21 21:19:26,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:19:26,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-21 21:19:26,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:19:26,199 INFO L225 Difference]: With dead ends: 29 [2019-11-21 21:19:26,199 INFO L226 Difference]: Without dead ends: 11 [2019-11-21 21:19:26,202 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=24, Invalid=46, Unknown=10, NotChecked=30, Total=110 [2019-11-21 21:19:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-21 21:19:26,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-21 21:19:26,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-21 21:19:26,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-21 21:19:26,248 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-21 21:19:26,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:19:26,249 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-21 21:19:26,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 21:19:26,249 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-21 21:19:26,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-21 21:19:26,250 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:19:26,250 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:19:26,466 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-21 21:19:26,466 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-21 21:19:26,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:19:26,467 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-21 21:19:26,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:19:26,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611633138] [2019-11-21 21:19:26,469 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 [2019-11-21 21:19:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:19:26,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:19:26,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:19:28,947 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 [2019-11-21 21:19:31,007 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 [2019-11-21 21:19:31,009 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:19:33,078 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 [2019-11-21 21:19:35,139 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 [2019-11-21 21:19:35,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:19:41,354 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 [2019-11-21 21:19:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:19:41,363 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:19:43,442 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 [2019-11-21 21:19:45,498 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 [2019-11-21 21:19:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:19:45,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611633138] [2019-11-21 21:19:45,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:19:45,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 21:19:45,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043085253] [2019-11-21 21:19:45,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 21:19:45,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:19:45,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 21:19:45,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-21 21:19:45,680 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-21 21:19:49,935 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 [2019-11-21 21:19:51,999 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 [2019-11-21 21:19:58,883 WARN L192 SmtUtils]: Spent 5.27 s on a formula simplification. DAG size of input: 25 DAG size of output: 5 [2019-11-21 21:19:58,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:19:58,884 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-21 21:19:58,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:19:58,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-21 21:19:58,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:19:58,885 INFO L225 Difference]: With dead ends: 9 [2019-11-21 21:19:58,885 INFO L226 Difference]: Without dead ends: 0 [2019-11-21 21:19:58,886 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=16, Invalid=7, Unknown=9, NotChecked=40, Total=72 [2019-11-21 21:19:58,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-21 21:19:58,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-21 21:19:58,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-21 21:19:58,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-21 21:19:58,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-21 21:19:58,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:19:58,888 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-21 21:19:58,888 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 21:19:58,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-21 21:19:58,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-21 21:19:59,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-21 21:19:59,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-21 21:20:10,690 WARN L192 SmtUtils]: Spent 11.54 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-21 21:20:58,042 WARN L192 SmtUtils]: Spent 47.35 s on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2019-11-21 21:20:58,050 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-21 21:20:58,050 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-21 21:20:58,050 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-21 21:20:58,050 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-21 21:20:58,050 INFO L440 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-21 21:20:58,051 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-21 21:20:58,051 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-21 21:20:58,051 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-21 21:20:58,051 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-21 21:20:58,052 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))) [2019-11-21 21:20:58,052 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-21 21:20:58,052 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-21 21:20:58,052 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))))) [2019-11-21 21:20:58,052 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-21 21:20:58,052 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)) [2019-11-21 21:20:58,061 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,066 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,069 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,071 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,071 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,071 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,075 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,075 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:20:58,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,081 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:20:58,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,082 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:20:58 BoogieIcfgContainer [2019-11-21 21:20:58,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 21:20:58,089 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 21:20:58,089 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 21:20:58,089 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 21:20:58,090 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:18:12" (3/4) ... [2019-11-21 21:20:58,094 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-21 21:20:58,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-21 21:20:58,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-21 21:20:58,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-21 21:20:58,156 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-21 21:20:58,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 21:20:58,158 INFO L168 Benchmark]: Toolchain (without parser) took 170862.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -83.5 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. [2019-11-21 21:20:58,159 INFO L168 Benchmark]: CDTParser took 0.86 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. [2019-11-21 21:20:58,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.84 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-21 21:20:58,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:20:58,161 INFO L168 Benchmark]: Boogie Preprocessor took 28.57 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. [2019-11-21 21:20:58,162 INFO L168 Benchmark]: RCFGBuilder took 5119.63 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-21 21:20:58,162 INFO L168 Benchmark]: TraceAbstraction took 165285.96 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: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. [2019-11-21 21:20:58,163 INFO L168 Benchmark]: Witness Printer took 67.66 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. [2019-11-21 21:20:58,166 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 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 267.84 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.57 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 5119.63 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 165285.96 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: 83.3 MB). Peak memory consumption was 83.3 MB. Max. memory is 11.5 GB. * Witness Printer took 67.66 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 [2019-11-21 21:20:58,181 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,187 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,190 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 [2019-11-21 21:20:58,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,192 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,196 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,196 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:20:58,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:20:58,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-21 21:20:58,201 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:20:58,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:20:58,204 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: 165.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 61.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 58.9s, HoareTripleCheckerStatistics: 12 SDtfs, 19 SDslu, 11 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 37.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.8s 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, 58.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 41.1s 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...