./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d056a1f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ............................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 14:14:49,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:14:49,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:14:49,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:14:49,379 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:14:49,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:14:49,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:14:49,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:14:49,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:14:49,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:14:49,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:14:49,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:14:49,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:14:49,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:14:49,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:14:49,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:14:49,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:14:49,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:14:49,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:14:49,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:14:49,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:14:49,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:14:49,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:14:49,430 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:14:49,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:14:49,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:14:49,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:14:49,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:14:49,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:14:49,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:14:49,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:14:49,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:14:49,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:14:49,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:14:49,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:14:49,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:14:49,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:14:49,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:14:49,445 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:14:49,446 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:14:49,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:14:49,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-22 14:14:49,466 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:14:49,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:14:49,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:14:49,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:14:49,468 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:14:49,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:14:49,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:14:49,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 14:14:49,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:14:49,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:14:49,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 14:14:49,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:14:49,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 14:14:49,471 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:14:49,471 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:14:49,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 14:14:49,472 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:14:49,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 14:14:49,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:14:49,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:14:49,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:14:49,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:14:49,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:14:49,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:14:49,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:14:49,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 14:14:49,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 14:14:49,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 14:14:49,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 14:14:49,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 14:14:49,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:14:49,825 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:14:49,828 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:14:49,830 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:14:49,832 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:14:49,833 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 14:14:49,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75da3bb25/942d9000c1ee49c6b159f997c8964d82/FLAGc11f00662 [2019-11-22 14:14:50,375 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:14:50,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 14:14:50,383 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75da3bb25/942d9000c1ee49c6b159f997c8964d82/FLAGc11f00662 [2019-11-22 14:14:50,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75da3bb25/942d9000c1ee49c6b159f997c8964d82 [2019-11-22 14:14:50,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:14:50,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 14:14:50,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:14:50,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:14:50,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:14:50,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:14:50" (1/1) ... [2019-11-22 14:14:50,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ceac6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:50, skipping insertion in model container [2019-11-22 14:14:50,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:14:50" (1/1) ... [2019-11-22 14:14:50,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:14:50,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:14:50,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:14:50,980 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 14:14:50,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:14:51,014 INFO L208 MainTranslator]: Completed translation [2019-11-22 14:14:51,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51 WrapperNode [2019-11-22 14:14:51,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:14:51,015 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 14:14:51,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 14:14:51,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 14:14:51,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 14:14:51,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 14:14:51,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 14:14:51,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 14:14:51,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... [2019-11-22 14:14:51,126 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 14:14:51,127 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 14:14:51,127 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 14:14:51,127 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 14:14:51,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:14:51,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 14:14:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 14:14:51,350 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 14:14:51,350 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 14:14:51,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:14:51 BoogieIcfgContainer [2019-11-22 14:14:51,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 14:14:51,353 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 14:14:51,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 14:14:51,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 14:14:51,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:14:50" (1/3) ... [2019-11-22 14:14:51,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8d26c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:14:51, skipping insertion in model container [2019-11-22 14:14:51,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:51" (2/3) ... [2019-11-22 14:14:51,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8d26c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:14:51, skipping insertion in model container [2019-11-22 14:14:51,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:14:51" (3/3) ... [2019-11-22 14:14:51,361 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 14:14:51,371 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 14:14:51,378 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 14:14:51,391 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 14:14:51,424 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 14:14:51,424 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 14:14:51,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 14:14:51,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 14:14:51,426 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 14:14:51,426 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 14:14:51,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 14:14:51,427 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 14:14:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-22 14:14:51,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-22 14:14:51,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:14:51,461 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-22 14:14:51,462 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:14:51,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:14:51,471 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-22 14:14:51,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-22 14:14:51,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437020232] [2019-11-22 14:14:51,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-22 14:14:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 14:14:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 14:14:51,616 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-22 14:14:51,617 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 14:14:51,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:14:51 BoogieIcfgContainer [2019-11-22 14:14:51,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 14:14:51,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 14:14:51,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 14:14:51,638 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 14:14:51,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:14:51" (3/4) ... [2019-11-22 14:14:51,642 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 14:14:51,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 14:14:51,646 INFO L168 Benchmark]: Toolchain (without parser) took 889.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -135.6 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2019-11-22 14:14:51,647 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:14:51,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.31 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 14:14:51,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-22 14:14:51,650 INFO L168 Benchmark]: Boogie Preprocessor took 20.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:14:51,651 INFO L168 Benchmark]: RCFGBuilder took 225.19 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-22 14:14:51,652 INFO L168 Benchmark]: TraceAbstraction took 283.24 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-11-22 14:14:51,653 INFO L168 Benchmark]: Witness Printer took 5.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:14:51,657 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 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 258.31 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 225.19 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 283.24 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.76 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 0.1.24-3d056a1 [2019-11-22 14:14:53,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 14:14:53,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 14:14:53,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 14:14:53,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 14:14:53,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 14:14:53,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 14:14:53,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 14:14:53,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 14:14:53,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 14:14:53,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 14:14:53,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 14:14:53,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 14:14:53,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 14:14:53,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 14:14:53,602 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 14:14:53,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 14:14:53,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 14:14:53,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 14:14:53,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 14:14:53,618 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 14:14:53,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 14:14:53,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 14:14:53,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 14:14:53,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 14:14:53,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 14:14:53,632 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 14:14:53,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 14:14:53,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 14:14:53,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 14:14:53,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 14:14:53,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 14:14:53,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 14:14:53,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 14:14:53,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 14:14:53,643 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 14:14:53,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 14:14:53,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 14:14:53,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 14:14:53,645 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 14:14:53,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 14:14:53,648 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-22 14:14:53,673 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 14:14:53,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 14:14:53,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 14:14:53,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 14:14:53,681 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 14:14:53,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 14:14:53,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 14:14:53,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 14:14:53,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 14:14:53,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 14:14:53,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 14:14:53,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 14:14:53,683 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 14:14:53,684 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 14:14:53,684 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 14:14:53,684 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 14:14:53,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 14:14:53,685 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 14:14:53,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 14:14:53,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 14:14:53,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 14:14:53,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 14:14:53,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 14:14:53,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:14:53,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 14:14:53,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 14:14:53,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 14:14:53,688 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 14:14:53,688 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 14:14:53,688 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 14:14:53,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 14:14:53,689 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 14:14:54,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 14:14:54,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 14:14:54,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 14:14:54,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 14:14:54,053 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 14:14:54,054 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 14:14:54,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0236e34f/b80c1b105b514d65ad91dc6e6638c3a8/FLAGbe2029269 [2019-11-22 14:14:54,608 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 14:14:54,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 14:14:54,614 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0236e34f/b80c1b105b514d65ad91dc6e6638c3a8/FLAGbe2029269 [2019-11-22 14:14:54,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0236e34f/b80c1b105b514d65ad91dc6e6638c3a8 [2019-11-22 14:14:54,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 14:14:54,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 14:14:54,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 14:14:54,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 14:14:54,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 14:14:54,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:14:54" (1/1) ... [2019-11-22 14:14:54,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d97587c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:54, skipping insertion in model container [2019-11-22 14:14:54,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:14:54" (1/1) ... [2019-11-22 14:14:54,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 14:14:54,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 14:14:55,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:14:55,176 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 14:14:55,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 14:14:55,221 INFO L208 MainTranslator]: Completed translation [2019-11-22 14:14:55,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55 WrapperNode [2019-11-22 14:14:55,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 14:14:55,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 14:14:55,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 14:14:55,225 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 14:14:55,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 14:14:55,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 14:14:55,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 14:14:55,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 14:14:55,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... [2019-11-22 14:14:55,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 14:14:55,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 14:14:55,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 14:14:55,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 14:14:55,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 14:14:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 14:14:55,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 14:15:00,196 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 14:15:00,196 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 14:15:00,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:00 BoogieIcfgContainer [2019-11-22 14:15:00,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 14:15:00,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 14:15:00,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 14:15:00,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 14:15:00,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:14:54" (1/3) ... [2019-11-22 14:15:00,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fe0c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:15:00, skipping insertion in model container [2019-11-22 14:15:00,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:55" (2/3) ... [2019-11-22 14:15:00,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28fe0c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:15:00, skipping insertion in model container [2019-11-22 14:15:00,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:00" (3/3) ... [2019-11-22 14:15:00,205 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 14:15:00,214 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 14:15:00,220 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 14:15:00,231 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 14:15:00,257 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 14:15:00,257 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 14:15:00,257 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 14:15:00,258 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 14:15:00,258 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 14:15:00,258 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 14:15:00,259 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 14:15:00,259 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 14:15:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-22 14:15:00,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-22 14:15:00,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:15:00,280 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-22 14:15:00,280 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:15:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:15:00,286 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-22 14:15:00,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:15:00,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996208337] [2019-11-22 14:15:00,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-22 14:15:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:15:03,430 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 14:15:03,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:15:07,101 WARN L192 SmtUtils]: Spent 2.62 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-22 14:15:14,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:15:14,245 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:15:16,561 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-22 14:15:18,623 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-22 14:15:30,861 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-22 14:15:30,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:15:30,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996208337] [2019-11-22 14:15:30,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:15:30,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-22 14:15:30,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414060938] [2019-11-22 14:15:30,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 14:15:30,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:15:30,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 14:15:30,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=25, Unknown=7, NotChecked=10, Total=56 [2019-11-22 14:15:30,882 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-22 14:15:39,263 WARN L192 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-22 14:15:44,628 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-22 14:16:20,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:20,240 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-22 14:16:20,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 14:16:20,291 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-22 14:16:20,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:20,300 INFO L225 Difference]: With dead ends: 29 [2019-11-22 14:16:20,301 INFO L226 Difference]: Without dead ends: 11 [2019-11-22 14:16:20,305 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 33.4s TimeCoverageRelationStatistics Valid=24, Invalid=45, Unknown=11, NotChecked=30, Total=110 [2019-11-22 14:16:20,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-22 14:16:20,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-22 14:16:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-22 14:16:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-22 14:16:20,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-22 14:16:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:20,348 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-22 14:16:20,349 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 14:16:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-22 14:16:20,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-22 14:16:20,349 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 14:16:20,350 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 14:16:20,551 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-22 14:16:20,552 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 14:16:20,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 14:16:20,552 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-22 14:16:20,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 14:16:20,554 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402742977] [2019-11-22 14:16:20,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-22 14:16:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 14:16:20,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 14:16:20,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 14:16:22,962 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from false [2019-11-22 14:16:25,025 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from true [2019-11-22 14:16:25,027 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:16:27,091 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-22 14:16:29,151 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-22 14:16:29,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 14:16:35,347 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-22 14:16:35,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:16:35,356 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 14:16:37,455 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-22 14:16:39,511 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from true [2019-11-22 14:16:39,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 14:16:39,689 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402742977] [2019-11-22 14:16:39,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 14:16:39,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 14:16:39,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696475761] [2019-11-22 14:16:39,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 14:16:39,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 14:16:39,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 14:16:39,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-22 14:16:39,693 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-22 14:16:43,948 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from false [2019-11-22 14:16:46,024 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from true [2019-11-22 14:16:53,591 WARN L192 SmtUtils]: Spent 6.28 s on a formula simplification. DAG size of input: 25 DAG size of output: 5 [2019-11-22 14:16:53,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 14:16:53,593 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-22 14:16:53,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 14:16:53,593 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-22 14:16:53,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 14:16:53,594 INFO L225 Difference]: With dead ends: 9 [2019-11-22 14:16:53,594 INFO L226 Difference]: Without dead ends: 0 [2019-11-22 14:16:53,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=16, Invalid=7, Unknown=9, NotChecked=40, Total=72 [2019-11-22 14:16:53,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-22 14:16:53,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-22 14:16:53,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-22 14:16:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-22 14:16:53,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-22 14:16:53,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 14:16:53,597 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-22 14:16:53,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 14:16:53,598 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-22 14:16:53,598 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-22 14:16:53,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-22 14:16:53,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-22 14:17:06,281 WARN L192 SmtUtils]: Spent 12.43 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-22 14:17:51,755 WARN L192 SmtUtils]: Spent 45.47 s on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2019-11-22 14:17:51,763 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-22 14:17:51,763 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 14:17:51,763 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-22 14:17:51,763 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-22 14:17:51,764 INFO L440 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-22 14:17:51,764 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-22 14:17:51,764 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-22 14:17:51,764 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-22 14:17:51,765 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 14:17:51,765 INFO L440 ceAbstractionStarter]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) currentRoundingMode (_ bv0 32)))) (fp.sub currentRoundingMode (fp.sub currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) (fp.div currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) currentRoundingMode 2.0))))) (_ bv0 32))) (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-22 14:17:51,765 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-22 14:17:51,765 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-22 14:17:51,765 INFO L440 ceAbstractionStarter]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-22 14:17:51,766 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-22 14:17:51,766 INFO L440 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-22 14:17:51,773 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,780 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,781 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,782 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,785 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,786 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 14:17:51,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,787 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,788 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,789 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,790 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,791 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 14:17:51,793 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,793 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,794 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,795 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,796 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:17:51 BoogieIcfgContainer [2019-11-22 14:17:51,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 14:17:51,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 14:17:51,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 14:17:51,800 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 14:17:51,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:15:00" (3/4) ... [2019-11-22 14:17:51,805 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-22 14:17:51,816 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-22 14:17:51,816 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-22 14:17:51,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-22 14:17:51,871 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 14:17:51,871 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 14:17:51,873 INFO L168 Benchmark]: Toolchain (without parser) took 176917.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -58.6 MB). Peak memory consumption was 63.5 MB. Max. memory is 11.5 GB. [2019-11-22 14:17:51,874 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:17:51,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 14:17:51,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-22 14:17:51,876 INFO L168 Benchmark]: Boogie Preprocessor took 28.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 14:17:51,877 INFO L168 Benchmark]: RCFGBuilder took 4854.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-22 14:17:51,878 INFO L168 Benchmark]: TraceAbstraction took 171600.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. [2019-11-22 14:17:51,878 INFO L168 Benchmark]: Witness Printer took 71.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 14:17:51,882 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 265.61 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.73 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 4854.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 171600.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 77.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 11.5 GB. * Witness Printer took 71.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-22 14:17:51,901 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,901 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,903 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 26]: Loop Invariant [2019-11-22 14:17:51,907 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,907 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,908 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,908 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 14:17:51,909 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,909 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,909 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,910 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,914 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 14:17:51,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,915 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~a~0_8,QUANTIFIED] [2019-11-22 14:17:51,916 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 14:17:51,917 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 14:17:51,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || ((((forall v_ULTIMATE.start_main_~a~0_8 : C_DOUBLE :: ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32), v_ULTIMATE.start_main_~a~0_8), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 0bv32)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, v_ULTIMATE.start_main_~a~0_8, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))))) == 0bv32) && 0bv32 == r) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 171.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 63.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 57.9s, HoareTripleCheckerStatistics: 12 SDtfs, 19 SDslu, 11 SDs, 0 SdLazy, 18 SolverSat, 4 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 37.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 59.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 91 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 57.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 46.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 2 QuantifiedInterpolants, 1979 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...