./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/floats-cbmc-regression/float-no-simp1.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 5fc76096080d06d307c9a613c10bbb5b03d622cd ........................................................................................................................................................................................................................................ 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 -ea -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/floats-cbmc-regression/float-no-simp1.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 5fc76096080d06d307c9a613c10bbb5b03d622cd ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:20:14,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:20:14,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:20:14,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:20:14,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:20:14,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:20:14,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:20:14,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:20:14,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:20:14,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:20:14,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:20:14,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:20:14,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:20:14,395 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:20:14,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:20:14,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:20:14,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:20:14,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:20:14,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:20:14,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:20:14,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:20:14,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:20:14,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:20:14,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:20:14,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:20:14,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:20:14,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:20:14,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:20:14,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:20:14,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:20:14,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:20:14,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:20:14,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:20:14,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:20:14,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:20:14,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:20:14,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:20:14,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:20:14,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:20:14,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:20:14,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:20:14,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:20:14,438 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:20:14,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:20:14,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:20:14,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:20:14,440 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:20:14,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:20:14,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:20:14,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:20:14,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:20:14,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:20:14,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:20:14,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:20:14,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:20:14,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:20:14,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:20:14,443 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:20:14,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:20:14,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:20:14,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:20:14,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:20:14,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:20:14,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:20:14,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:20:14,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:20:14,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:20:14,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:20:14,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:20:14,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:20:14,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:20:14,448 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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2020-07-28 17:20:14,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:20:14,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:20:14,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:20:14,764 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:20:14,765 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:20:14,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-07-28 17:20:14,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2e7cbac/1cfc8dce3dc44e31aeb439d67651c943/FLAG1919f597e [2020-07-28 17:20:15,242 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:20:15,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-07-28 17:20:15,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2e7cbac/1cfc8dce3dc44e31aeb439d67651c943/FLAG1919f597e [2020-07-28 17:20:15,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df2e7cbac/1cfc8dce3dc44e31aeb439d67651c943 [2020-07-28 17:20:15,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:20:15,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:20:15,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:20:15,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:20:15,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:20:15,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:15,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cf07ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15, skipping insertion in model container [2020-07-28 17:20:15,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:15,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:20:15,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:20:15,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:20:15,937 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:20:15,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:20:15,967 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:20:15,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15 WrapperNode [2020-07-28 17:20:15,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:20:15,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:20:15,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:20:15,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:20:15,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:15,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:20:16,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:20:16,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:20:16,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:20:16,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (1/1) ... [2020-07-28 17:20:16,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:20:16,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:20:16,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:20:16,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:20:16,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (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 [2020-07-28 17:20:16,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:20:16,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:20:16,320 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:20:16,321 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 17:20:16,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:20:16 BoogieIcfgContainer [2020-07-28 17:20:16,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:20:16,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:20:16,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:20:16,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:20:16,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:20:15" (1/3) ... [2020-07-28 17:20:16,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e906488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:20:16, skipping insertion in model container [2020-07-28 17:20:16,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:15" (2/3) ... [2020-07-28 17:20:16,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e906488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:20:16, skipping insertion in model container [2020-07-28 17:20:16,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:20:16" (3/3) ... [2020-07-28 17:20:16,334 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-07-28 17:20:16,345 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:20:16,352 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:20:16,368 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:20:16,391 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:20:16,392 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:20:16,392 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:20:16,392 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:20:16,392 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:20:16,393 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:20:16,393 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:20:16,393 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:20:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-07-28 17:20:16,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-07-28 17:20:16,414 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:20:16,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-07-28 17:20:16,416 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:20:16,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:20:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2020-07-28 17:20:16,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:20:16,434 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39112697] [2020-07-28 17:20:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:20:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:20:16,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:20:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:20:16,528 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:20:16,545 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:20:16,546 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:20:16,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:20:16,564 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:20:16,565 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 17:20:16,565 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 17:20:16,565 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2020-07-28 17:20:16,565 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2020-07-28 17:20:16,566 WARN L170 areAnnotationChecker]: L2 has no Hoare annotation [2020-07-28 17:20:16,566 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:20:16,566 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:20:16,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:20:16 BoogieIcfgContainer [2020-07-28 17:20:16,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:20:16,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:20:16,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:20:16,570 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:20:16,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:20:16" (3/4) ... [2020-07-28 17:20:16,574 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:20:16,575 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:20:16,578 INFO L168 Benchmark]: Toolchain (without parser) took 869.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:20:16,579 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:20:16,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.46 ms. Allocated memory is still 1.0 GB. Free memory was 958.9 MB in the beginning and 946.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:16,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:16,582 INFO L168 Benchmark]: Boogie Preprocessor took 20.67 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. [2020-07-28 17:20:16,583 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:16,584 INFO L168 Benchmark]: TraceAbstraction took 243.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:16,585 INFO L168 Benchmark]: Witness Printer took 5.37 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. [2020-07-28 17:20:16,589 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.46 ms. Allocated memory is still 1.0 GB. Free memory was 958.9 MB in the beginning and 946.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 109.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.67 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 243.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.37 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: 10]: 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 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 3 NumberOfCodeBlocks, 3 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, ACCELERATED_INTERPOLATION: 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 0.1.25-8bd4bc6 [2020-07-28 17:20:18,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:20:18,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:20:18,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:20:18,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:20:18,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:20:18,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:20:18,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:20:18,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:20:18,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:20:18,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:20:18,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:20:18,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:20:18,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:20:18,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:20:18,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:20:18,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:20:18,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:20:18,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:20:18,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:20:18,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:20:18,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:20:18,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:20:18,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:20:18,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:20:18,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:20:18,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:20:18,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:20:18,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:20:18,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:20:18,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:20:18,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:20:18,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:20:18,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:20:18,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:20:18,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:20:18,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:20:18,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:20:18,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:20:18,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:20:18,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:20:18,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:20:18,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:20:18,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:20:18,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:20:18,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:20:18,496 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:20:18,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:20:18,497 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:20:18,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:20:18,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:20:18,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:20:18,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:20:18,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:20:18,499 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:20:18,499 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:20:18,499 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:20:18,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:20:18,500 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:20:18,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:20:18,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:20:18,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:20:18,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:20:18,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:20:18,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:20:18,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:20:18,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:20:18,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:20:18,503 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:20:18,503 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:20:18,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:20:18,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:20:18,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:20:18,504 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 -> 5fc76096080d06d307c9a613c10bbb5b03d622cd [2020-07-28 17:20:18,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:20:18,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:20:18,814 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:20:18,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:20:18,816 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:20:18,817 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-07-28 17:20:18,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d247375ae/74bbeecb48ee4bcba4519f8fe519dbe5/FLAG0f2dd7392 [2020-07-28 17:20:19,264 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:20:19,265 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-07-28 17:20:19,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d247375ae/74bbeecb48ee4bcba4519f8fe519dbe5/FLAG0f2dd7392 [2020-07-28 17:20:19,622 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d247375ae/74bbeecb48ee4bcba4519f8fe519dbe5 [2020-07-28 17:20:19,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:20:19,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:20:19,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:20:19,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:20:19,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:20:19,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:19,638 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531c53f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19, skipping insertion in model container [2020-07-28 17:20:19,639 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:19,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:20:19,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:20:19,831 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:20:19,849 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:20:19,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:20:19,886 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:20:19,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19 WrapperNode [2020-07-28 17:20:19,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:20:19,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:20:19,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:20:19,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:20:19,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:19,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:19,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:20:19,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:20:19,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:20:19,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:20:20,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,014 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (1/1) ... [2020-07-28 17:20:20,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:20:20,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:20:20,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:20:20,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:20:20,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (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 [2020-07-28 17:20:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:20:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:20:20,398 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:20:20,399 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-28 17:20:20,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:20:20 BoogieIcfgContainer [2020-07-28 17:20:20,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:20:20,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:20:20,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:20:20,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:20:20,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:20:19" (1/3) ... [2020-07-28 17:20:20,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d45f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:20:20, skipping insertion in model container [2020-07-28 17:20:20,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:20:19" (2/3) ... [2020-07-28 17:20:20,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d45f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:20:20, skipping insertion in model container [2020-07-28 17:20:20,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:20:20" (3/3) ... [2020-07-28 17:20:20,411 INFO L109 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-07-28 17:20:20,421 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:20:20,428 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:20:20,442 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:20:20,469 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:20:20,469 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:20:20,469 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:20:20,470 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:20:20,470 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:20:20,470 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:20:20,470 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:20:20,470 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:20:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-07-28 17:20:20,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:20:20,491 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:20:20,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:20:20,493 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:20:20,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:20:20,500 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-07-28 17:20:20,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:20:20,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597678297] [2020-07-28 17:20:20,515 INFO L95 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 [2020-07-28 17:20:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:20:20,587 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-28 17:20:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:20:20,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:20:21,004 INFO L280 TraceCheckUtils]: 0: Hoare triple {11#true} currentRoundingMode := ~roundNearestTiesToEven; {11#true} is VALID [2020-07-28 17:20:21,041 INFO L280 TraceCheckUtils]: 1: Hoare triple {11#true} havoc main_#res;havoc main_~i~0, main_~j~0, main_~d~0;havoc main_~i~0;havoc main_~j~0;havoc main_~d~0;main_~i~0 := ~convertDOUBLEToUINT(~roundTowardZero, ~to_fp~DOUBLE(currentRoundingMode, 100.0));main_~d~0 := ~convertUINTToDOUBLE(currentRoundingMode, main_~i~0);main_~j~0 := ~convertDOUBLEToUINT(~roundTowardZero, main_~d~0); {19#(exists ((currentRoundingMode RoundingMode)) (= ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp_unsigned 11 53) currentRoundingMode ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp 11 53) currentRoundingMode 100.0)))) ULTIMATE.start_main_~j~0))} is VALID [2020-07-28 17:20:21,045 INFO L280 TraceCheckUtils]: 2: Hoare triple {19#(exists ((currentRoundingMode RoundingMode)) (= ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp_unsigned 11 53) currentRoundingMode ((_ fp.to_ubv 32) roundTowardZero ((_ to_fp 11 53) currentRoundingMode 100.0)))) ULTIMATE.start_main_~j~0))} assume !(100bv32 == main_~j~0); {12#false} is VALID [2020-07-28 17:20:21,045 INFO L280 TraceCheckUtils]: 3: Hoare triple {12#false} assume !false; {12#false} is VALID [2020-07-28 17:20:21,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:20:21,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:20:21,986 INFO L280 TraceCheckUtils]: 3: Hoare triple {12#false} assume !false; {12#false} is VALID [2020-07-28 17:20:21,990 INFO L280 TraceCheckUtils]: 2: Hoare triple {29#(= (_ bv100 32) ULTIMATE.start_main_~j~0)} assume !(100bv32 == main_~j~0); {12#false} is VALID [2020-07-28 17:20:22,116 INFO L280 TraceCheckUtils]: 1: Hoare triple {11#true} havoc main_#res;havoc main_~i~0, main_~j~0, main_~d~0;havoc main_~i~0;havoc main_~j~0;havoc main_~d~0;main_~i~0 := ~convertDOUBLEToUINT(~roundTowardZero, ~to_fp~DOUBLE(currentRoundingMode, 100.0));main_~d~0 := ~convertUINTToDOUBLE(currentRoundingMode, main_~i~0);main_~j~0 := ~convertDOUBLEToUINT(~roundTowardZero, main_~d~0); {29#(= (_ bv100 32) ULTIMATE.start_main_~j~0)} is VALID [2020-07-28 17:20:22,116 INFO L280 TraceCheckUtils]: 0: Hoare triple {11#true} currentRoundingMode := ~roundNearestTiesToEven; {11#true} is VALID [2020-07-28 17:20:22,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:20:22,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597678297] [2020-07-28 17:20:22,118 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:20:22,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-07-28 17:20:22,119 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351172375] [2020-07-28 17:20:22,124 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-07-28 17:20:22,125 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:20:22,129 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:20:22,229 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:20:22,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:20:22,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:20:22,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:20:22,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:20:22,241 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2020-07-28 17:20:22,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:20:22,444 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-07-28 17:20:22,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:20:22,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-07-28 17:20:22,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:20:22,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:20:22,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-28 17:20:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:20:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2020-07-28 17:20:22,452 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 10 transitions. [2020-07-28 17:20:22,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:20:22,545 INFO L225 Difference]: With dead ends: 11 [2020-07-28 17:20:22,546 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:20:22,551 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:20:22,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:20:22,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:20:22,580 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:20:22,580 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:20:22,581 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:20:22,582 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:20:22,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:20:22,582 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:20:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:20:22,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:20:22,583 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:20:22,584 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:20:22,584 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:20:22,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:20:22,585 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:20:22,585 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:20:22,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:20:22,586 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:20:22,586 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:20:22,587 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:20:22,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:20:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:20:22,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-07-28 17:20:22,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:20:22,590 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:20:22,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:20:22,590 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:20:22,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:20:22,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:20:22,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:20:22,811 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:20:22,812 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:20:22,812 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:20:22,812 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:20:22,812 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-07-28 17:20:22,812 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-07-28 17:20:22,813 INFO L268 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-07-28 17:20:22,813 INFO L268 CegarLoopResult]: For program point L2(lines 2 11) no Hoare annotation was computed. [2020-07-28 17:20:22,817 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:20:22,818 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:20:22,818 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 17:20:22,818 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2020-07-28 17:20:22,818 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2020-07-28 17:20:22,819 WARN L170 areAnnotationChecker]: L10-1 has no Hoare annotation [2020-07-28 17:20:22,819 WARN L170 areAnnotationChecker]: L2 has no Hoare annotation [2020-07-28 17:20:22,819 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:20:22,819 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:20:22,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:20:22 BoogieIcfgContainer [2020-07-28 17:20:22,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:20:22,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:20:22,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:20:22,823 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:20:22,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:20:20" (3/4) ... [2020-07-28 17:20:22,827 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:20:22,838 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 17:20:22,838 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 17:20:22,838 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:20:22,879 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:20:22,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:20:22,883 INFO L168 Benchmark]: Toolchain (without parser) took 3254.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -121.9 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:22,883 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:20:22,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.49 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:22,885 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.19 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:20:22,886 INFO L168 Benchmark]: Boogie Preprocessor took 98.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:22,886 INFO L168 Benchmark]: RCFGBuilder took 369.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:22,887 INFO L168 Benchmark]: TraceAbstraction took 2418.66 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:20:22,888 INFO L168 Benchmark]: Witness Printer took 57.76 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. [2020-07-28 17:20:22,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.49 ms. Allocated memory is still 1.0 GB. Free memory was 956.2 MB in the beginning and 945.5 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 43.19 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 945.5 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 369.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2418.66 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * Witness Printer took 57.76 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...