./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7c71bc25 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-7c71bc2 [2019-11-25 13:19:23,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 13:19:23,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 13:19:23,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 13:19:23,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 13:19:23,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 13:19:23,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 13:19:23,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 13:19:23,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 13:19:23,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 13:19:23,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 13:19:23,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 13:19:23,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 13:19:23,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 13:19:23,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 13:19:23,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 13:19:23,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 13:19:23,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 13:19:23,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 13:19:23,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 13:19:23,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 13:19:23,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 13:19:23,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 13:19:23,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 13:19:23,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 13:19:23,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 13:19:23,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 13:19:23,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 13:19:23,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 13:19:23,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 13:19:23,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 13:19:23,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 13:19:23,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 13:19:23,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 13:19:23,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 13:19:23,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 13:19:23,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 13:19:23,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 13:19:23,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 13:19:23,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 13:19:23,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 13:19:23,383 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-25 13:19:23,413 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 13:19:23,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 13:19:23,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 13:19:23,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 13:19:23,418 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 13:19:23,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 13:19:23,418 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 13:19:23,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 13:19:23,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 13:19:23,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 13:19:23,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 13:19:23,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 13:19:23,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 13:19:23,422 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 13:19:23,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 13:19:23,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 13:19:23,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 13:19:23,423 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 13:19:23,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 13:19:23,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 13:19:23,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 13:19:23,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 13:19:23,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 13:19:23,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 13:19:23,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 13:19:23,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 13:19:23,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 13:19:23,426 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-25 13:19:23,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 13:19:23,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 13:19:23,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 13:19:23,758 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 13:19:23,759 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 13:19:23,760 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 13:19:23,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938cedf25/485535fad6b94736b6f70287d610d058/FLAGdcce4f403 [2019-11-25 13:19:24,282 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 13:19:24,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 13:19:24,289 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938cedf25/485535fad6b94736b6f70287d610d058/FLAGdcce4f403 [2019-11-25 13:19:24,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/938cedf25/485535fad6b94736b6f70287d610d058 [2019-11-25 13:19:24,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 13:19:24,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 13:19:24,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 13:19:24,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 13:19:24,687 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 13:19:24,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:24,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5238bbb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24, skipping insertion in model container [2019-11-25 13:19:24,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:24,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 13:19:24,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 13:19:24,890 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 13:19:24,894 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 13:19:24,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 13:19:24,927 INFO L208 MainTranslator]: Completed translation [2019-11-25 13:19:24,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24 WrapperNode [2019-11-25 13:19:24,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 13:19:24,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 13:19:24,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 13:19:24,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 13:19:24,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:24,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 13:19:25,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 13:19:25,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 13:19:25,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 13:19:25,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (1/1) ... [2019-11-25 13:19:25,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 13:19:25,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 13:19:25,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 13:19:25,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 13:19:25,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (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 [2019-11-25 13:19:25,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 13:19:25,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 13:19:25,253 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 13:19:25,253 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 13:19:25,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:19:25 BoogieIcfgContainer [2019-11-25 13:19:25,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 13:19:25,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 13:19:25,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 13:19:25,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 13:19:25,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 01:19:24" (1/3) ... [2019-11-25 13:19:25,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2ce2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 01:19:25, skipping insertion in model container [2019-11-25 13:19:25,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:24" (2/3) ... [2019-11-25 13:19:25,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2ce2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 01:19:25, skipping insertion in model container [2019-11-25 13:19:25,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:19:25" (3/3) ... [2019-11-25 13:19:25,270 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-25 13:19:25,283 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 13:19:25,291 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 13:19:25,304 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 13:19:25,334 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 13:19:25,335 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 13:19:25,335 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 13:19:25,335 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 13:19:25,335 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 13:19:25,336 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 13:19:25,336 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 13:19:25,336 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 13:19:25,358 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-25 13:19:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 13:19:25,366 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 13:19:25,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 13:19:25,368 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 13:19:25,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 13:19:25,375 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-25 13:19:25,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 13:19:25,387 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480840696] [2019-11-25 13:19:25,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 13:19:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 13:19:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 13:19:25,609 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 13:19:25,610 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 13:19:25,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 01:19:25 BoogieIcfgContainer [2019-11-25 13:19:25,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 13:19:25,629 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 13:19:25,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 13:19:25,630 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 13:19:25,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:19:25" (3/4) ... [2019-11-25 13:19:25,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 13:19:25,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 13:19:25,637 INFO L168 Benchmark]: Toolchain (without parser) took 954.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 13:19:25,637 INFO L168 Benchmark]: CDTParser took 0.58 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. [2019-11-25 13:19:25,638 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.66 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. [2019-11-25 13:19:25,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-25 13:19:25,640 INFO L168 Benchmark]: Boogie Preprocessor took 20.85 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. [2019-11-25 13:19:25,641 INFO L168 Benchmark]: RCFGBuilder took 225.48 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-25 13:19:25,642 INFO L168 Benchmark]: TraceAbstraction took 372.84 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-11-25 13:19:25,643 INFO L168 Benchmark]: Witness Printer took 4.59 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. [2019-11-25 13:19:25,649 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 245.66 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 79.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.85 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 225.48 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 372.84 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.59 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-7c71bc2 [2019-11-25 13:19:27,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 13:19:27,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 13:19:27,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 13:19:27,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 13:19:27,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 13:19:27,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 13:19:27,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 13:19:27,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 13:19:27,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 13:19:27,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 13:19:27,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 13:19:27,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 13:19:27,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 13:19:27,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 13:19:27,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 13:19:27,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 13:19:27,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 13:19:27,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 13:19:27,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 13:19:27,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 13:19:27,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 13:19:27,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 13:19:27,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 13:19:27,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 13:19:27,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 13:19:27,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 13:19:27,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 13:19:27,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 13:19:27,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 13:19:27,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 13:19:27,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 13:19:27,839 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 13:19:27,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 13:19:27,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 13:19:27,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 13:19:27,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 13:19:27,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 13:19:27,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 13:19:27,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 13:19:27,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 13:19:27,846 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-25 13:19:27,864 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 13:19:27,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 13:19:27,866 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 13:19:27,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 13:19:27,867 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 13:19:27,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 13:19:27,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 13:19:27,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 13:19:27,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 13:19:27,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 13:19:27,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 13:19:27,870 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 13:19:27,870 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 13:19:27,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 13:19:27,871 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 13:19:27,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 13:19:27,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 13:19:27,871 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 13:19:27,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 13:19:27,872 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 13:19:27,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 13:19:27,873 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 13:19:27,873 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 13:19:27,873 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 13:19:27,874 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 13:19:27,874 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 13:19:27,874 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 13:19:27,874 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 13:19:27,875 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-25 13:19:27,875 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-25 13:19:28,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 13:19:28,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 13:19:28,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 13:19:28,214 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 13:19:28,214 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 13:19:28,216 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 13:19:28,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5d0331c/092212767f78429f971599a789678183/FLAG9d1d36d22 [2019-11-25 13:19:28,781 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 13:19:28,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 13:19:28,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5d0331c/092212767f78429f971599a789678183/FLAG9d1d36d22 [2019-11-25 13:19:29,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e5d0331c/092212767f78429f971599a789678183 [2019-11-25 13:19:29,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 13:19:29,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 13:19:29,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 13:19:29,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 13:19:29,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 13:19:29,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c715f25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29, skipping insertion in model container [2019-11-25 13:19:29,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 13:19:29,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 13:19:29,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 13:19:29,428 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 13:19:29,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 13:19:29,459 INFO L208 MainTranslator]: Completed translation [2019-11-25 13:19:29,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29 WrapperNode [2019-11-25 13:19:29,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 13:19:29,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 13:19:29,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 13:19:29,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 13:19:29,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 13:19:29,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 13:19:29,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 13:19:29,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 13:19:29,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... [2019-11-25 13:19:29,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 13:19:29,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 13:19:29,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 13:19:29,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 13:19:29,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 13:19:29,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 13:19:29,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 13:19:34,870 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 13:19:34,871 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 13:19:34,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:19:34 BoogieIcfgContainer [2019-11-25 13:19:34,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 13:19:34,873 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 13:19:34,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 13:19:34,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 13:19:34,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 01:19:29" (1/3) ... [2019-11-25 13:19:34,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9720da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 01:19:34, skipping insertion in model container [2019-11-25 13:19:34,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:19:29" (2/3) ... [2019-11-25 13:19:34,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9720da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 01:19:34, skipping insertion in model container [2019-11-25 13:19:34,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:19:34" (3/3) ... [2019-11-25 13:19:34,880 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-25 13:19:34,890 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 13:19:34,896 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 13:19:34,908 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 13:19:34,931 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 13:19:34,931 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 13:19:34,931 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 13:19:34,932 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 13:19:34,932 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 13:19:34,932 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 13:19:34,932 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 13:19:34,933 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 13:19:34,946 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-25 13:19:34,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 13:19:34,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 13:19:34,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 13:19:34,952 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 13:19:34,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 13:19:34,957 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-25 13:19:34,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 13:19:34,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1598091438] [2019-11-25 13:19:34,967 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 [2019-11-25 13:19:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 13:19:38,007 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 13:19:38,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 13:19:40,743 WARN L192 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-25 13:19:49,527 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53))) (not (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add roundNearestTiesToEven (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (fp.sub roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 ULTIMATE.start_main_~a~0) .cse0)) (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) (fp.div roundNearestTiesToEven ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))))))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) is different from false [2019-11-25 13:19:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 13:19:51,394 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 13:19:53,734 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 [2019-11-25 13:19:55,793 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 [2019-11-25 13:20:03,680 WARN L192 SmtUtils]: Spent 930.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-11-25 13:20:03,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 13:20:03,683 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1598091438] [2019-11-25 13:20:03,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 13:20:03,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-25 13:20:03,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106801670] [2019-11-25 13:20:03,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 13:20:03,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 13:20:03,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 13:20:03,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-11-25 13:20:03,712 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-25 13:20:05,866 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-25 13:20:08,371 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 [2019-11-25 13:20:11,986 WARN L192 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 27 DAG size of output: 5 [2019-11-25 13:20:30,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 13:20:30,880 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-25 13:20:30,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 13:20:30,883 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-25 13:20:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 13:20:30,894 INFO L225 Difference]: With dead ends: 29 [2019-11-25 13:20:30,895 INFO L226 Difference]: Without dead ends: 11 [2019-11-25 13:20:30,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 25.2s TimeCoverageRelationStatistics Valid=21, Invalid=32, Unknown=5, NotChecked=52, Total=110 [2019-11-25 13:20:30,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-25 13:20:30,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-25 13:20:30,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-25 13:20:30,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-25 13:20:30,940 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-25 13:20:30,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 13:20:30,941 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-25 13:20:30,941 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 13:20:30,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-25 13:20:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 13:20:30,942 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 13:20:30,943 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 13:20:31,156 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 13:20:31,158 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 13:20:31,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 13:20:31,159 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-25 13:20:31,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 13:20:31,161 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161930751] [2019-11-25 13:20:31,161 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 [2019-11-25 13:20:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 13:20:31,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 13:20:31,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 13:20:33,635 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 [2019-11-25 13:20:35,700 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 [2019-11-25 13:20:35,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 13:20:37,770 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 [2019-11-25 13:20:39,832 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 [2019-11-25 13:20:39,839 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 13:20:46,044 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 [2019-11-25 13:20:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 13:20:46,054 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 13:20:48,150 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 [2019-11-25 13:20:50,211 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 [2019-11-25 13:20:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 13:20:50,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161930751] [2019-11-25 13:20:50,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 13:20:50,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-25 13:20:50,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662438316] [2019-11-25 13:20:50,395 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 13:20:50,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 13:20:50,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 13:20:50,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-25 13:20:50,397 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-25 13:20:54,659 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 [2019-11-25 13:20:56,726 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 [2019-11-25 13:20:58,794 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 [2019-11-25 13:20:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 13:20:58,799 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-25 13:20:58,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 13:20:58,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-25 13:20:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 13:20:58,799 INFO L225 Difference]: With dead ends: 9 [2019-11-25 13:20:58,799 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 13:20:58,801 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 [2019-11-25 13:20:58,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 13:20:58,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 13:20:58,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 13:20:58,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 13:20:58,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-25 13:20:58,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 13:20:58,802 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 13:20:58,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 13:20:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 13:20:58,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 13:20:59,003 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 13:20:59,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 13:21:11,517 WARN L192 SmtUtils]: Spent 12.47 s on a formula simplification that was a NOOP. DAG size: 21 [2019-11-25 13:21:31,043 WARN L192 SmtUtils]: Spent 19.52 s on a formula simplification that was a NOOP. DAG size: 29 [2019-11-25 13:21:31,051 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 13:21:31,051 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-25 13:21:31,051 INFO L474 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-25 13:21:31,051 INFO L474 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-25 13:21:31,052 INFO L470 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-25 13:21:31,052 INFO L474 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 13:21:31,052 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 13:21:31,052 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 13:21:31,052 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-25 13:21:31,053 INFO L470 ceAbstractionStarter]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ 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))) [2019-11-25 13:21:31,053 INFO L474 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-25 13:21:31,053 INFO L474 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-25 13:21:31,053 INFO L470 ceAbstractionStarter]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-25 13:21:31,053 INFO L474 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-25 13:21:31,053 INFO L470 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) [2019-11-25 13:21:31,061 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,063 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,064 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,067 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,068 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,069 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,071 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,072 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 13:21:31,072 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,074 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,077 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 13:21:31,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 01:21:31 BoogieIcfgContainer [2019-11-25 13:21:31,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 13:21:31,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 13:21:31,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 13:21:31,085 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 13:21:31,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:19:34" (3/4) ... [2019-11-25 13:21:31,090 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 13:21:31,101 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 13:21:31,101 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 13:21:31,102 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 13:21:31,151 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-25 13:21:31,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 13:21:31,154 INFO L168 Benchmark]: Toolchain (without parser) took 121975.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -81.4 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-11-25 13:21:31,155 INFO L168 Benchmark]: CDTParser took 0.94 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 13:21:31,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.46 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-25 13:21:31,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-25 13:21:31,157 INFO L168 Benchmark]: Boogie Preprocessor took 26.51 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. [2019-11-25 13:21:31,157 INFO L168 Benchmark]: RCFGBuilder took 5286.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-11-25 13:21:31,158 INFO L168 Benchmark]: TraceAbstraction took 116211.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2019-11-25 13:21:31,159 INFO L168 Benchmark]: Witness Printer took 67.73 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. [2019-11-25 13:21:31,162 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.46 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 949.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -184.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.51 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 5286.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 116211.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. * Witness Printer took 67.73 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 [2019-11-25 13:21:31,179 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,180 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,181 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,182 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,182 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,183 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 0bv32) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: !(cond == 0bv32) - InvariantResult [Line: 26]: Loop Invariant [2019-11-25 13:21:31,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,185 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 13:21:31,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,187 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,188 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,189 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 13:21:31,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 13:21:31,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,191 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 13:21:31,193 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: !(cond == 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: !(cond == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 116.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 35.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 32.0s, HoareTripleCheckerStatistics: 15 SDtfs, 6 SDslu, 22 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 20.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 45.9s 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, 83 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 31.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 44.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 3 QuantifiedInterpolants, 2103 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...