./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ........................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-21 21:47:18,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:47:18,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:47:18,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:47:18,980 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:47:18,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:47:18,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:47:18,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:47:18,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:47:18,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:47:18,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:47:18,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:47:18,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:47:18,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:47:18,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:47:19,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:47:19,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:47:19,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:47:19,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:47:19,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:47:19,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:47:19,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:47:19,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:47:19,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:47:19,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:47:19,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:47:19,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:47:19,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:47:19,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:47:19,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:47:19,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:47:19,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:47:19,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:47:19,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:47:19,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:47:19,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:47:19,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:47:19,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:47:19,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:47:19,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:47:19,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:47:19,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-21 21:47:19,047 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:47:19,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:47:19,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:47:19,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:47:19,049 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:47:19,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:47:19,050 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 21:47:19,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 21:47:19,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 21:47:19,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:47:19,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-21 21:47:19,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:47:19,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-21 21:47:19,052 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 21:47:19,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-21 21:47:19,053 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:47:19,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-21 21:47:19,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:47:19,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:47:19,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:47:19,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:47:19,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:47:19,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:47:19,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:47:19,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-21 21:47:19,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-21 21:47:19,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-21 21:47:19,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-21 21:47:19,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-21 21:47:19,347 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:47:19,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:47:19,364 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:47:19,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:47:19,366 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:47:19,367 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:47:19,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f74bd277/1d03ae7eac7a4849af2157d2dc666339/FLAG78255cf9f [2019-11-21 21:47:19,897 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:47:19,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:47:19,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f74bd277/1d03ae7eac7a4849af2157d2dc666339/FLAG78255cf9f [2019-11-21 21:47:20,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f74bd277/1d03ae7eac7a4849af2157d2dc666339 [2019-11-21 21:47:20,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:47:20,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-21 21:47:20,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:47:20,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:47:20,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:47:20,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7415b1a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20, skipping insertion in model container [2019-11-21 21:47:20,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:47:20,305 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:47:20,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:47:20,551 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:47:20,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:47:20,587 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:47:20,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20 WrapperNode [2019-11-21 21:47:20,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:47:20,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-21 21:47:20,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-21 21:47:20,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-21 21:47:20,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,604 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,685 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-21 21:47:20,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:47:20,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:47:20,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:47:20,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... [2019-11-21 21:47:20,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:47:20,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:47:20,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:47:20,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:47:20,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:47:20,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:47:20,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:47:20,978 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:47:20,979 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-21 21:47:20,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:20 BoogieIcfgContainer [2019-11-21 21:47:20,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:47:20,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:47:20,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:47:20,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:47:20,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:47:20" (1/3) ... [2019-11-21 21:47:20,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d41535b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:47:20, skipping insertion in model container [2019-11-21 21:47:20,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:20" (2/3) ... [2019-11-21 21:47:20,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d41535b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:47:20, skipping insertion in model container [2019-11-21 21:47:20,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:20" (3/3) ... [2019-11-21 21:47:20,989 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-21 21:47:21,000 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:47:21,008 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-21 21:47:21,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-21 21:47:21,046 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:47:21,047 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-21 21:47:21,047 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:47:21,047 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:47:21,048 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:47:21,048 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:47:21,048 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:47:21,048 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:47:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-21 21:47:21,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-21 21:47:21,071 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:47:21,072 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-21 21:47:21,073 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-21 21:47:21,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:47:21,080 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-21 21:47:21,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-21 21:47:21,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529722063] [2019-11-21 21:47:21,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-21 21:47:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 21:47:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-21 21:47:21,220 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-21 21:47:21,221 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-21 21:47:21,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:47:21 BoogieIcfgContainer [2019-11-21 21:47:21,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 21:47:21,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 21:47:21,242 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 21:47:21,242 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 21:47:21,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:20" (3/4) ... [2019-11-21 21:47:21,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-21 21:47:21,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 21:47:21,250 INFO L168 Benchmark]: Toolchain (without parser) took 984.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:47:21,251 INFO L168 Benchmark]: CDTParser took 0.28 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 21:47:21,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.25 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:47:21,254 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-21 21:47:21,255 INFO L168 Benchmark]: Boogie Preprocessor took 43.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:47:21,256 INFO L168 Benchmark]: RCFGBuilder took 249.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:47:21,257 INFO L168 Benchmark]: TraceAbstraction took 259.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-21 21:47:21,257 INFO L168 Benchmark]: Witness Printer took 5.89 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 21:47:21,262 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 323.25 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 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 97.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -196.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 249.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 259.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-21 21:47:23,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:47:23,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:47:23,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:47:23,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:47:23,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:47:23,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:47:23,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:47:23,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:47:23,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:47:23,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:47:23,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:47:23,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:47:23,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:47:23,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:47:23,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:47:23,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:47:23,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:47:23,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:47:23,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:47:23,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:47:23,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:47:23,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:47:23,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:47:23,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:47:23,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:47:23,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:47:23,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:47:23,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:47:23,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:47:23,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:47:23,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:47:23,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:47:23,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:47:23,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:47:23,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:47:23,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:47:23,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:47:23,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:47:23,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:47:23,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:47:23,336 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-21 21:47:23,353 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:47:23,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:47:23,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:47:23,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:47:23,355 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:47:23,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:47:23,355 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 21:47:23,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 21:47:23,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:47:23,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-21 21:47:23,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:47:23,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-21 21:47:23,357 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-21 21:47:23,357 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 21:47:23,358 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 21:47:23,358 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 21:47:23,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-21 21:47:23,359 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:47:23,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-21 21:47:23,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:47:23,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:47:23,360 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:47:23,360 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:47:23,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:47:23,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:47:23,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:47:23,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-21 21:47:23,362 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 21:47:23,362 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 21:47:23,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-21 21:47:23,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 21:47:23,363 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-21 21:47:23,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:47:23,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:47:23,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:47:23,688 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:47:23,690 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:47:23,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:47:23,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737909e8e/47427054e0ce4b6585d2583708a169c3/FLAG1de397380 [2019-11-21 21:47:24,209 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:47:24,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-21 21:47:24,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737909e8e/47427054e0ce4b6585d2583708a169c3/FLAG1de397380 [2019-11-21 21:47:24,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/737909e8e/47427054e0ce4b6585d2583708a169c3 [2019-11-21 21:47:24,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:47:24,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-21 21:47:24,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:47:24,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:47:24,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:47:24,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb698ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24, skipping insertion in model container [2019-11-21 21:47:24,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:47:24,648 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:47:24,834 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:47:24,843 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:47:24,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:47:24,876 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:47:24,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24 WrapperNode [2019-11-21 21:47:24,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:47:24,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-21 21:47:24,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-21 21:47:24,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-21 21:47:24,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,951 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-21 21:47:24,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:47:24,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:47:24,974 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:47:24,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:24,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... [2019-11-21 21:47:25,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:47:25,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:47:25,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:47:25,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:47:25,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:47:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:47:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:47:30,128 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:47:30,128 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-21 21:47:30,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:30 BoogieIcfgContainer [2019-11-21 21:47:30,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:47:30,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:47:30,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:47:30,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:47:30,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:47:24" (1/3) ... [2019-11-21 21:47:30,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4a57d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:47:30, skipping insertion in model container [2019-11-21 21:47:30,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:47:24" (2/3) ... [2019-11-21 21:47:30,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e4a57d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:47:30, skipping insertion in model container [2019-11-21 21:47:30,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:30" (3/3) ... [2019-11-21 21:47:30,139 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-21 21:47:30,148 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:47:30,158 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-21 21:47:30,171 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-21 21:47:30,196 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:47:30,197 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-21 21:47:30,197 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:47:30,197 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:47:30,198 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:47:30,198 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:47:30,198 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:47:30,199 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:47:30,218 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-21 21:47:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-21 21:47:30,224 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:47:30,225 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-21 21:47:30,226 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-21 21:47:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:47:30,234 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-21 21:47:30,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:47:30,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [437357217] [2019-11-21 21:47:30,249 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 21:47:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:47:33,386 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:47:33,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:47:36,126 WARN L192 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-21 21:47:38,425 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 21:47:38,425 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:47:40,705 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 21:47:42,761 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 21:47:44,843 WARN L860 $PredicateComparison]: unable to prove that (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))) is different from true [2019-11-21 21:47:44,844 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 21:47:44,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [437357217] [2019-11-21 21:47:44,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:47:44,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-21 21:47:44,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691646402] [2019-11-21 21:47:44,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 21:47:44,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:47:44,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 21:47:44,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-11-21 21:47:44,864 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-21 21:47:57,090 WARN L192 SmtUtils]: Spent 4.11 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-21 21:48:01,046 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-21 21:48:10,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:48:10,214 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-21 21:48:10,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:48:10,217 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-21 21:48:10,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:48:10,227 INFO L225 Difference]: With dead ends: 29 [2019-11-21 21:48:10,228 INFO L226 Difference]: Without dead ends: 11 [2019-11-21 21:48:10,232 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 24.5s TimeCoverageRelationStatistics Valid=23, Invalid=37, Unknown=8, NotChecked=42, Total=110 [2019-11-21 21:48:10,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-21 21:48:10,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-21 21:48:10,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-21 21:48:10,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-21 21:48:10,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-21 21:48:10,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:48:10,272 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-21 21:48:10,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 21:48:10,273 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-21 21:48:10,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-21 21:48:10,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:48:10,274 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:48:10,487 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-21 21:48:10,487 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-21 21:48:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:48:10,489 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-21 21:48:10,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:48:10,490 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052950240] [2019-11-21 21:48:10,490 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 21:48:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:48:10,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:48:10,852 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:48:12,917 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 21:48:14,992 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 21:48:14,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:48:17,062 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 21:48:19,147 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 21:48:19,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:48:25,345 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 21:48:25,351 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 21:48:25,352 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:48:27,423 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 21:48:29,483 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 21:48:29,669 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 21:48:29,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052950240] [2019-11-21 21:48:29,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:48:29,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 21:48:29,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548323973] [2019-11-21 21:48:29,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 21:48:29,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:48:29,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 21:48:29,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-21 21:48:29,672 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-21 21:48:33,927 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 21:48:35,989 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 21:48:38,050 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) is different from false [2019-11-21 21:48:38,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:48:38,055 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-21 21:48:38,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:48:38,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-21 21:48:38,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:48:38,056 INFO L225 Difference]: With dead ends: 9 [2019-11-21 21:48:38,056 INFO L226 Difference]: Without dead ends: 0 [2019-11-21 21:48:38,057 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=15, Invalid=5, Unknown=10, NotChecked=42, Total=72 [2019-11-21 21:48:38,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-21 21:48:38,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-21 21:48:38,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-21 21:48:38,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-21 21:48:38,058 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-21 21:48:38,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:48:38,058 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-21 21:48:38,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 21:48:38,058 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-21 21:48:38,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-21 21:48:38,259 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-21 21:48:38,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-21 21:48:50,741 WARN L192 SmtUtils]: Spent 12.43 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-21 21:49:13,873 WARN L192 SmtUtils]: Spent 23.13 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-21 21:49:13,880 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-21 21:49:13,881 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-21 21:49:13,881 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-21 21:49:13,881 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-21 21:49:13,881 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 21:49:13,881 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-21 21:49:13,882 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-21 21:49:13,882 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-21 21:49:13,882 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-21 21:49:13,882 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 (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-21 21:49:13,882 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-21 21:49:13,883 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-21 21:49:13,883 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 21:49:13,883 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-21 21:49:13,884 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 21:49:13,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:13,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:13,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:13,905 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:49:13,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,909 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:13,909 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:49:13,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,913 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:13,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:49:13 BoogieIcfgContainer [2019-11-21 21:49:13,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-21 21:49:13,917 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-21 21:49:13,917 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-21 21:49:13,917 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-21 21:49:13,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:47:30" (3/4) ... [2019-11-21 21:49:13,922 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-21 21:49:13,934 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-21 21:49:13,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-21 21:49:13,935 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-21 21:49:13,986 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-21 21:49:13,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-21 21:49:13,988 INFO L168 Benchmark]: Toolchain (without parser) took 109377.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -85.3 MB). Peak memory consumption was 54.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:13,989 INFO L168 Benchmark]: CDTParser took 0.30 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 21:49:13,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.30 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:13,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:13,991 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:13,992 INFO L168 Benchmark]: RCFGBuilder took 5125.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:13,993 INFO L168 Benchmark]: TraceAbstraction took 103785.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:13,993 INFO L168 Benchmark]: Witness Printer took 69.98 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 21:49:13,997 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 265.30 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5125.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 103785.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.8 MB). Peak memory consumption was 75.8 MB. Max. memory is 11.5 GB. * Witness Printer took 69.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-21 21:49:14,019 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:14,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,022 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:14,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,023 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,024 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,024 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 21:49:14,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:14,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:49:14,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,033 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,034 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,035 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,036 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-21 21:49:14,037 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-21 21:49:14,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,039 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,040 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,043 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,043 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-21 21:49:14,043 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || (((0bv32 == r && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 103.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 33.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 35.6s, HoareTripleCheckerStatistics: 12 SDtfs, 18 SDslu, 11 SDs, 0 SdLazy, 16 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 12.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 87 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 35.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 30.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 2 QuantifiedInterpolants, 1979 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...