./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 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/floats-cbmc-regression/float6.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 ca8cf78b853c91fd1bab039a3932b7542b32ac23 ..................................................................................................................................................................................................................... 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/floats-cbmc-regression/float6.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 ca8cf78b853c91fd1bab039a3932b7542b32ac23 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 21:08:58,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:08:58,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:08:58,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:08:58,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:08:58,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:08:58,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:08:58,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:08:58,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:08:58,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:08:58,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:08:58,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:08:58,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:08:58,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:08:58,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:08:58,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:08:58,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:08:58,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:08:58,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:08:58,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:08:58,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:08:58,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:08:58,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:08:58,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:08:58,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:08:58,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:08:58,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:08:58,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:08:58,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:08:58,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:08:58,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:08:58,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:08:58,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:08:58,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:08:58,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:08:58,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:08:58,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:08:58,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:08:58,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:08:58,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:08:58,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:08:58,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 21:08:58,550 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:08:58,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:08:58,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:08:58,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:08:58,552 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:08:58,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:08:58,553 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:08:58,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 21:08:58,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:08:58,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:08:58,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:08:58,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:08:58,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:08:58,555 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:08:58,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:08:58,555 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:08:58,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:08:58,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:08:58,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:08:58,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:08:58,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:08:58,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:08:58,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:08:58,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:08:58,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:08:58,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 21:08:58,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 21:08:58,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:08:58,559 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 -> ca8cf78b853c91fd1bab039a3932b7542b32ac23 [2019-11-19 21:08:58,868 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:08:58,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:08:58,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:08:58,888 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:08:58,888 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:08:58,889 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float6.c [2019-11-19 21:08:58,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e924aa13f/005ce8b86c5149aa8b78205d39fba1e0/FLAG4063d379c [2019-11-19 21:08:59,462 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:08:59,464 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float6.c [2019-11-19 21:08:59,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e924aa13f/005ce8b86c5149aa8b78205d39fba1e0/FLAG4063d379c [2019-11-19 21:08:59,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e924aa13f/005ce8b86c5149aa8b78205d39fba1e0 [2019-11-19 21:08:59,856 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:08:59,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:08:59,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:08:59,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:08:59,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:08:59,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:08:59" (1/1) ... [2019-11-19 21:08:59,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e28a3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:08:59, skipping insertion in model container [2019-11-19 21:08:59,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:08:59" (1/1) ... [2019-11-19 21:08:59,876 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:08:59,894 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:09:00,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:09:00,147 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:09:00,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:09:00,248 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:09:00,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00 WrapperNode [2019-11-19 21:09:00,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:09:00,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:09:00,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:09:00,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:09:00,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:09:00,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:09:00,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:09:00,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:09:00,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (1/1) ... [2019-11-19 21:09:00,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:09:00,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:09:00,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:09:00,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:09:00,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (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 [2019-11-19 21:09:00,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:09:00,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:09:00,748 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:09:00,749 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 21:09:00,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:00 BoogieIcfgContainer [2019-11-19 21:09:00,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:09:00,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:09:00,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:09:00,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:09:00,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:08:59" (1/3) ... [2019-11-19 21:09:00,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed9f7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:09:00, skipping insertion in model container [2019-11-19 21:09:00,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:00" (2/3) ... [2019-11-19 21:09:00,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed9f7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:09:00, skipping insertion in model container [2019-11-19 21:09:00,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:00" (3/3) ... [2019-11-19 21:09:00,759 INFO L109 eAbstractionObserver]: Analyzing ICFG float6.c [2019-11-19 21:09:00,770 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:09:00,779 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2019-11-19 21:09:00,810 INFO L249 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2019-11-19 21:09:00,845 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:09:00,846 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:09:00,846 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:09:00,846 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:09:00,846 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:09:00,846 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:09:00,846 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:09:00,847 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:09:00,887 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-19 21:09:00,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 21:09:00,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:09:00,893 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 21:09:00,895 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:09:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:09:00,900 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-19 21:09:00,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 21:09:00,908 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032120029] [2019-11-19 21:09:00,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 21:09:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:09:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 21:09:01,007 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 21:09:01,007 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 21:09:01,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:09:01 BoogieIcfgContainer [2019-11-19 21:09:01,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:09:01,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:09:01,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:09:01,023 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:09:01,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:00" (3/4) ... [2019-11-19 21:09:01,027 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 21:09:01,027 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:09:01,033 INFO L168 Benchmark]: Toolchain (without parser) took 1171.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -108.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:01,034 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-19 21:09:01,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:01,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:09:01,038 INFO L168 Benchmark]: Boogie Preprocessor took 32.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:01,041 INFO L168 Benchmark]: RCFGBuilder took 426.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:01,042 INFO L168 Benchmark]: TraceAbstraction took 270.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:01,043 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:09:01,053 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 390.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 426.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 270.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.45 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 7. Possible FailurePath: [L7] COND TRUE !(1.0!=2.0) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 36 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 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 0.1.24-678e011 [2019-11-19 21:09:03,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 21:09:03,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 21:09:03,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 21:09:03,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 21:09:03,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 21:09:03,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 21:09:03,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 21:09:03,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 21:09:03,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 21:09:03,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 21:09:03,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 21:09:03,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 21:09:03,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 21:09:03,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 21:09:03,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 21:09:03,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 21:09:03,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 21:09:03,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 21:09:03,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 21:09:03,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 21:09:03,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 21:09:03,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 21:09:03,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 21:09:03,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 21:09:03,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 21:09:03,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 21:09:03,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 21:09:03,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 21:09:03,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 21:09:03,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 21:09:03,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 21:09:03,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 21:09:03,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 21:09:03,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 21:09:03,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 21:09:03,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 21:09:03,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 21:09:03,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 21:09:03,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 21:09:03,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 21:09:03,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 21:09:03,225 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 21:09:03,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 21:09:03,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 21:09:03,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 21:09:03,227 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 21:09:03,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 21:09:03,228 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 21:09:03,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 21:09:03,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 21:09:03,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 21:09:03,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 21:09:03,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 21:09:03,230 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 21:09:03,230 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 21:09:03,230 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 21:09:03,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 21:09:03,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 21:09:03,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 21:09:03,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 21:09:03,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 21:09:03,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 21:09:03,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 21:09:03,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 21:09:03,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 21:09:03,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 21:09:03,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 21:09:03,233 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 21:09:03,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 21:09:03,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 21:09:03,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 21:09:03,235 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 -> ca8cf78b853c91fd1bab039a3932b7542b32ac23 [2019-11-19 21:09:03,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 21:09:03,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 21:09:03,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 21:09:03,586 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 21:09:03,587 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 21:09:03,588 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float6.c [2019-11-19 21:09:03,668 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd282d8d2/8e68f18ce53849729f53e23b8aef6b5c/FLAGa8d50423a [2019-11-19 21:09:04,122 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 21:09:04,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float6.c [2019-11-19 21:09:04,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd282d8d2/8e68f18ce53849729f53e23b8aef6b5c/FLAGa8d50423a [2019-11-19 21:09:04,445 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd282d8d2/8e68f18ce53849729f53e23b8aef6b5c [2019-11-19 21:09:04,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 21:09:04,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 21:09:04,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 21:09:04,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 21:09:04,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 21:09:04,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:04,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa5f44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04, skipping insertion in model container [2019-11-19 21:09:04,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:04,471 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 21:09:04,492 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 21:09:04,802 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:09:04,813 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 21:09:04,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 21:09:04,964 INFO L192 MainTranslator]: Completed translation [2019-11-19 21:09:04,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04 WrapperNode [2019-11-19 21:09:04,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 21:09:04,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 21:09:04,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 21:09:04,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 21:09:04,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:04,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 21:09:05,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 21:09:05,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 21:09:05,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 21:09:05,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (1/1) ... [2019-11-19 21:09:05,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 21:09:05,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 21:09:05,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 21:09:05,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 21:09:05,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (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 [2019-11-19 21:09:05,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 21:09:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 21:09:05,615 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 21:09:05,615 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-19 21:09:05,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:05 BoogieIcfgContainer [2019-11-19 21:09:05,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 21:09:05,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 21:09:05,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 21:09:05,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 21:09:05,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:09:04" (1/3) ... [2019-11-19 21:09:05,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0feab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:09:05, skipping insertion in model container [2019-11-19 21:09:05,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:09:04" (2/3) ... [2019-11-19 21:09:05,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0feab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:09:05, skipping insertion in model container [2019-11-19 21:09:05,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:05" (3/3) ... [2019-11-19 21:09:05,626 INFO L109 eAbstractionObserver]: Analyzing ICFG float6.c [2019-11-19 21:09:05,637 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 21:09:05,645 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 36 error locations. [2019-11-19 21:09:05,658 INFO L249 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2019-11-19 21:09:05,687 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 21:09:05,688 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 21:09:05,688 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 21:09:05,688 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 21:09:05,689 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 21:09:05,689 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 21:09:05,689 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 21:09:05,689 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 21:09:05,716 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-19 21:09:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-19 21:09:05,723 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:09:05,724 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-19 21:09:05,725 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:09:05,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:09:05,732 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-11-19 21:09:05,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:09:05,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [953071174] [2019-11-19 21:09:05,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:09:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:09:05,830 INFO L255 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 21:09:05,835 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:09:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:05,848 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:09:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:05,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [953071174] [2019-11-19 21:09:05,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:09:05,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 21:09:05,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553203947] [2019-11-19 21:09:05,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 21:09:05,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:09:05,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 21:09:05,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:09:05,875 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2019-11-19 21:09:05,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:09:05,898 INFO L93 Difference]: Finished difference Result 180 states and 249 transitions. [2019-11-19 21:09:05,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 21:09:05,900 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 3 [2019-11-19 21:09:05,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:09:05,909 INFO L225 Difference]: With dead ends: 180 [2019-11-19 21:09:05,910 INFO L226 Difference]: Without dead ends: 66 [2019-11-19 21:09:05,913 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 21:09:05,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-19 21:09:05,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-11-19 21:09:05,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-19 21:09:05,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 65 transitions. [2019-11-19 21:09:05,949 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 65 transitions. Word has length 3 [2019-11-19 21:09:05,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:09:05,949 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 65 transitions. [2019-11-19 21:09:05,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 21:09:05,950 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 65 transitions. [2019-11-19 21:09:05,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-19 21:09:05,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 21:09:05,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 21:09:06,153 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-19 21:09:06,154 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 21:09:06,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 21:09:06,155 INFO L82 PathProgramCache]: Analyzing trace with hash 840309835, now seen corresponding path program 1 times [2019-11-19 21:09:06,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 21:09:06,157 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1153811312] [2019-11-19 21:09:06,157 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 [2019-11-19 21:09:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 21:09:06,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 21:09:06,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 21:09:06,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:06,254 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 21:09:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 21:09:06,280 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1153811312] [2019-11-19 21:09:06,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 21:09:06,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-19 21:09:06,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964416159] [2019-11-19 21:09:06,284 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 21:09:06,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 21:09:06,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 21:09:06,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 21:09:06,285 INFO L87 Difference]: Start difference. First operand 66 states and 65 transitions. Second operand 4 states. [2019-11-19 21:09:06,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 21:09:06,412 INFO L93 Difference]: Finished difference Result 66 states and 65 transitions. [2019-11-19 21:09:06,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 21:09:06,412 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-11-19 21:09:06,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 21:09:06,413 INFO L225 Difference]: With dead ends: 66 [2019-11-19 21:09:06,413 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 21:09:06,415 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-19 21:09:06,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 21:09:06,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 21:09:06,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 21:09:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 21:09:06,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-19 21:09:06,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 21:09:06,416 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 21:09:06,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 21:09:06,416 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 21:09:06,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 21:09:06,617 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 21:09:06,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 21:09:06,629 INFO L444 ceAbstractionStarter]: For program point L35-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point L19-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point L36(line 36) no Hoare annotation was computed. [2019-11-19 21:09:06,630 INFO L444 ceAbstractionStarter]: For program point L36-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point L20-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 48) no Hoare annotation was computed. [2019-11-19 21:09:06,631 INFO L444 ceAbstractionStarter]: For program point L37-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point L38-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,632 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point L22-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point L39-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,633 INFO L444 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point L23-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point L7-1(line 7) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point L40-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,634 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point L24-2(line 24) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-11-19 21:09:06,635 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point L8-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2019-11-19 21:09:06,636 INFO L444 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point L42-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point L9-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION(line 41) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-11-19 21:09:06,637 INFO L444 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point L43-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point L10-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point L44(line 44) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point L44-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,638 INFO L444 ceAbstractionStarter]: For program point L11-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point L45(line 45) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point L45-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,639 INFO L444 ceAbstractionStarter]: For program point L12-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2019-11-19 21:09:06,640 INFO L444 ceAbstractionStarter]: For program point L46-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L13-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L30-1(line 30) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L30-3(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L47(line 47) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-19 21:09:06,641 INFO L444 ceAbstractionStarter]: For program point L14-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION(line 37) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point L31-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION(line 23) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point L15-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,642 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2019-11-19 21:09:06,643 INFO L444 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2019-11-19 21:09:06,643 INFO L444 ceAbstractionStarter]: For program point L32-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,643 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2019-11-19 21:09:06,643 INFO L444 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-11-19 21:09:06,643 INFO L444 ceAbstractionStarter]: For program point L16-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,643 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2019-11-19 21:09:06,644 INFO L444 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-11-19 21:09:06,644 INFO L444 ceAbstractionStarter]: For program point L33-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,644 INFO L444 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2019-11-19 21:09:06,644 INFO L444 ceAbstractionStarter]: For program point L17-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,644 INFO L444 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-11-19 21:09:06,644 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION(line 38) no Hoare annotation was computed. [2019-11-19 21:09:06,645 INFO L444 ceAbstractionStarter]: For program point L34-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,645 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2019-11-19 21:09:06,645 INFO L444 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2019-11-19 21:09:06,645 INFO L444 ceAbstractionStarter]: For program point L18-2(lines 5 48) no Hoare annotation was computed. [2019-11-19 21:09:06,645 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2019-11-19 21:09:06,645 INFO L444 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2019-11-19 21:09:06,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 09:09:06 BoogieIcfgContainer [2019-11-19 21:09:06,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 21:09:06,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 21:09:06,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 21:09:06,657 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 21:09:06,657 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:09:05" (3/4) ... [2019-11-19 21:09:06,661 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 21:09:06,677 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 21:09:06,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-19 21:09:06,764 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 21:09:06,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 21:09:06,767 INFO L168 Benchmark]: Toolchain (without parser) took 2315.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -87.3 MB). Peak memory consumption was 55.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:06,767 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-19 21:09:06,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:06,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.50 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. [2019-11-19 21:09:06,769 INFO L168 Benchmark]: Boogie Preprocessor took 54.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 21:09:06,771 INFO L168 Benchmark]: RCFGBuilder took 534.16 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:06,772 INFO L168 Benchmark]: TraceAbstraction took 1037.82 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:06,772 INFO L168 Benchmark]: Witness Printer took 108.23 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 21:09:06,775 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 513.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.50 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. * Boogie Preprocessor took 54.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 534.16 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1037.82 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. * Witness Printer took 108.23 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: 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: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 36]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 24]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 32]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 46]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 38]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 18]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 42]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 35]: 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 - PositiveResult [Line: 23]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 19]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 45]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 11]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 37]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 47]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 41]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 36 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 88 SDtfs, 34 SDslu, 18 SDs, 0 SdLazy, 18 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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, 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, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1163 SizeOfPredicates, 2 NumberOfNonLiveVariables, 31 ConjunctsInSsa, 3 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...