./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3677de697f2e465cd606b8f0d05818e7deafda1 .............................................................................................................................................................................................................................................................................................................................. 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 -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3677de697f2e465cd606b8f0d05818e7deafda1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 13:38:33,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 13:38:33,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 13:38:33,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 13:38:33,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 13:38:33,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 13:38:33,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 13:38:33,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 13:38:33,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 13:38:33,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 13:38:33,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 13:38:33,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 13:38:33,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 13:38:33,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 13:38:33,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 13:38:33,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 13:38:33,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 13:38:33,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 13:38:33,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 13:38:33,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 13:38:33,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 13:38:33,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 13:38:33,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 13:38:33,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 13:38:33,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 13:38:33,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 13:38:33,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 13:38:33,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 13:38:33,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 13:38:33,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 13:38:33,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 13:38:33,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 13:38:33,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 13:38:33,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 13:38:33,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 13:38:33,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 13:38:33,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 13:38:33,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 13:38:33,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 13:38:33,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 13:38:33,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 13:38:33,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 13:38:33,753 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 13:38:33,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 13:38:33,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 13:38:33,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 13:38:33,755 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 13:38:33,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 13:38:33,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 13:38:33,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 13:38:33,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 13:38:33,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 13:38:33,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 13:38:33,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 13:38:33,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 13:38:33,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 13:38:33,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 13:38:33,758 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 13:38:33,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 13:38:33,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 13:38:33,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 13:38:33,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 13:38:33,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 13:38:33,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 13:38:33,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 13:38:33,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 13:38:33,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 13:38:33,761 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 13:38:33,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 13:38:33,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 13:38:33,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 13:38:33,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2020-11-29 13:38:34,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 13:38:34,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 13:38:34,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 13:38:34,274 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 13:38:34,276 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 13:38:34,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.c [2020-11-29 13:38:34,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa77847fa/59c9a281b98f4aba8d912415d4562fbb/FLAG11b5d750f [2020-11-29 13:38:35,005 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 13:38:35,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832.c [2020-11-29 13:38:35,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa77847fa/59c9a281b98f4aba8d912415d4562fbb/FLAG11b5d750f [2020-11-29 13:38:35,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa77847fa/59c9a281b98f4aba8d912415d4562fbb [2020-11-29 13:38:35,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 13:38:35,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 13:38:35,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 13:38:35,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 13:38:35,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 13:38:35,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58862f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35, skipping insertion in model container [2020-11-29 13:38:35,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 13:38:35,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 13:38:35,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 13:38:35,696 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 13:38:35,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 13:38:35,765 INFO L208 MainTranslator]: Completed translation [2020-11-29 13:38:35,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35 WrapperNode [2020-11-29 13:38:35,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 13:38:35,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 13:38:35,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 13:38:35,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 13:38:35,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 13:38:35,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 13:38:35,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 13:38:35,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 13:38:35,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... [2020-11-29 13:38:35,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 13:38:35,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 13:38:35,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 13:38:35,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 13:38:35,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 13:38:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 13:38:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 13:38:35,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 13:38:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 13:38:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 13:38:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 13:38:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 13:38:35,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 13:38:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 13:38:35,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 13:38:36,539 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 13:38:36,539 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 13:38:36,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:38:36 BoogieIcfgContainer [2020-11-29 13:38:36,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 13:38:36,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 13:38:36,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 13:38:36,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 13:38:36,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:38:35" (1/3) ... [2020-11-29 13:38:36,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dc532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:38:36, skipping insertion in model container [2020-11-29 13:38:36,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:35" (2/3) ... [2020-11-29 13:38:36,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60dc532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:38:36, skipping insertion in model container [2020-11-29 13:38:36,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:38:36" (3/3) ... [2020-11-29 13:38:36,552 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2020-11-29 13:38:36,570 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 13:38:36,576 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 13:38:36,590 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 13:38:36,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 13:38:36,625 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 13:38:36,625 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 13:38:36,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 13:38:36,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 13:38:36,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 13:38:36,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 13:38:36,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 13:38:36,646 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-29 13:38:36,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 13:38:36,654 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 13:38:36,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 13:38:36,656 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 13:38:36,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 13:38:36,665 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2020-11-29 13:38:36,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 13:38:36,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001443640] [2020-11-29 13:38:36,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 13:38:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 13:38:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:38:37,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001443640] [2020-11-29 13:38:37,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 13:38:37,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 13:38:37,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718177063] [2020-11-29 13:38:37,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 13:38:37,046 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 13:38:37,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 13:38:37,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 13:38:37,071 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-11-29 13:38:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 13:38:37,106 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2020-11-29 13:38:37,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 13:38:37,108 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 13:38:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 13:38:37,133 INFO L225 Difference]: With dead ends: 80 [2020-11-29 13:38:37,141 INFO L226 Difference]: Without dead ends: 37 [2020-11-29 13:38:37,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 13:38:37,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-29 13:38:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-29 13:38:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-29 13:38:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-11-29 13:38:37,207 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2020-11-29 13:38:37,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 13:38:37,208 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-11-29 13:38:37,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 13:38:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-11-29 13:38:37,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 13:38:37,212 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 13:38:37,212 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 13:38:37,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 13:38:37,213 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 13:38:37,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 13:38:37,217 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2020-11-29 13:38:37,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 13:38:37,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364902505] [2020-11-29 13:38:37,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 13:38:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 13:38:37,365 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 13:38:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 13:38:37,461 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 13:38:37,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 13:38:37,537 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 13:38:37,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 13:38:37,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:38:37 BoogieIcfgContainer [2020-11-29 13:38:37,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 13:38:37,638 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 13:38:37,638 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 13:38:37,638 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 13:38:37,639 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:38:36" (3/4) ... [2020-11-29 13:38:37,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 13:38:37,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 13:38:37,652 INFO L168 Benchmark]: Toolchain (without parser) took 2273.03 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 17.9 MB in the beginning and 37.8 MB in the end (delta: -19.9 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-11-29 13:38:37,653 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 41.9 MB. Free memory was 26.8 MB in the beginning and 26.7 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 13:38:37,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.58 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.3 MB in the beginning and 22.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-29 13:38:37,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.38 ms. Allocated memory is still 50.3 MB. Free memory was 22.7 MB in the beginning and 32.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-29 13:38:37,658 INFO L168 Benchmark]: Boogie Preprocessor took 48.03 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 30.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 13:38:37,660 INFO L168 Benchmark]: RCFGBuilder took 662.18 ms. Allocated memory is still 50.3 MB. Free memory was 30.6 MB in the beginning and 27.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 13:38:37,662 INFO L168 Benchmark]: TraceAbstraction took 1093.83 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.8 MB in the beginning and 38.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-29 13:38:37,665 INFO L168 Benchmark]: Witness Printer took 8.10 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 37.8 MB in the end (delta: 353.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 13:38:37,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 41.9 MB. Free memory was 26.8 MB in the beginning and 26.7 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.58 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.3 MB in the beginning and 22.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.38 ms. Allocated memory is still 50.3 MB. Free memory was 22.7 MB in the beginning and 32.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.03 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 30.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 662.18 ms. Allocated memory is still 50.3 MB. Free memory was 30.6 MB in the beginning and 27.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1093.83 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.8 MB in the beginning and 38.1 MB in the end (delta: -11.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 8.10 ms. Allocated memory is still 60.8 MB. Free memory was 38.1 MB in the beginning and 37.8 MB in the end (delta: 353.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_0832.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-0e1a00c [2020-11-29 13:38:40,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 13:38:40,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 13:38:40,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 13:38:40,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 13:38:40,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 13:38:40,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 13:38:40,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 13:38:40,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 13:38:40,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 13:38:40,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 13:38:40,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 13:38:40,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 13:38:40,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 13:38:40,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 13:38:40,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 13:38:40,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 13:38:40,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 13:38:40,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 13:38:40,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 13:38:40,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 13:38:40,494 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 13:38:40,496 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 13:38:40,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 13:38:40,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 13:38:40,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 13:38:40,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 13:38:40,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 13:38:40,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 13:38:40,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 13:38:40,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 13:38:40,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 13:38:40,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 13:38:40,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 13:38:40,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 13:38:40,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 13:38:40,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 13:38:40,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 13:38:40,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 13:38:40,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 13:38:40,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 13:38:40,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 13:38:40,543 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 13:38:40,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 13:38:40,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 13:38:40,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 13:38:40,546 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 13:38:40,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 13:38:40,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 13:38:40,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 13:38:40,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 13:38:40,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 13:38:40,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 13:38:40,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 13:38:40,548 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 13:38:40,548 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 13:38:40,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 13:38:40,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 13:38:40,549 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 13:38:40,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 13:38:40,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 13:38:40,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 13:38:40,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 13:38:40,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 13:38:40,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 13:38:40,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 13:38:40,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 13:38:40,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 13:38:40,552 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 13:38:40,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 13:38:40,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 13:38:40,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 13:38:40,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 13:38:40,553 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3677de697f2e465cd606b8f0d05818e7deafda1 [2020-11-29 13:38:41,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 13:38:41,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 13:38:41,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 13:38:41,060 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 13:38:41,061 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 13:38:41,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0832.c [2020-11-29 13:38:41,141 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296963e7b/2743f56be67e40d982cedc87fa004592/FLAG1c54c7af5 [2020-11-29 13:38:41,862 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 13:38:41,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0832.c [2020-11-29 13:38:41,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296963e7b/2743f56be67e40d982cedc87fa004592/FLAG1c54c7af5 [2020-11-29 13:38:42,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/296963e7b/2743f56be67e40d982cedc87fa004592 [2020-11-29 13:38:42,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 13:38:42,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 13:38:42,203 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 13:38:42,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 13:38:42,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 13:38:42,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3c3453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42, skipping insertion in model container [2020-11-29 13:38:42,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 13:38:42,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 13:38:42,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 13:38:42,665 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 13:38:42,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 13:38:42,818 INFO L208 MainTranslator]: Completed translation [2020-11-29 13:38:42,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42 WrapperNode [2020-11-29 13:38:42,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 13:38:42,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 13:38:42,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 13:38:42,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 13:38:42,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 13:38:42,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 13:38:42,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 13:38:42,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 13:38:42,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... [2020-11-29 13:38:42,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 13:38:42,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 13:38:42,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 13:38:42,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 13:38:42,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 13:38:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 13:38:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 13:38:43,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 13:38:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 13:38:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-11-29 13:38:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 13:38:43,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 13:38:43,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 13:38:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 13:38:43,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 13:39:01,184 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 13:39:01,185 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 13:39:01,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:39:01 BoogieIcfgContainer [2020-11-29 13:39:01,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 13:39:01,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 13:39:01,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 13:39:01,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 13:39:01,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:38:42" (1/3) ... [2020-11-29 13:39:01,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686649c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:39:01, skipping insertion in model container [2020-11-29 13:39:01,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:38:42" (2/3) ... [2020-11-29 13:39:01,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@686649c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:39:01, skipping insertion in model container [2020-11-29 13:39:01,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:39:01" (3/3) ... [2020-11-29 13:39:01,201 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2020-11-29 13:39:01,218 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 13:39:01,222 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 13:39:01,236 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 13:39:01,265 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 13:39:01,266 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 13:39:01,266 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 13:39:01,266 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 13:39:01,266 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 13:39:01,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 13:39:01,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 13:39:01,267 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 13:39:01,281 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-11-29 13:39:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 13:39:01,287 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 13:39:01,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 13:39:01,288 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 13:39:01,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 13:39:01,295 INFO L82 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2020-11-29 13:39:01,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 13:39:01,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837793094] [2020-11-29 13:39:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 13:39:01,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 13:39:01,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 13:39:01,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 13:39:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:39:01,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 13:39:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:39:01,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837793094] [2020-11-29 13:39:01,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 13:39:01,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 13:39:01,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532772820] [2020-11-29 13:39:01,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 13:39:01,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 13:39:01,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 13:39:01,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 13:39:01,976 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2020-11-29 13:39:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 13:39:02,000 INFO L93 Difference]: Finished difference Result 80 states and 129 transitions. [2020-11-29 13:39:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 13:39:02,001 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 13:39:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 13:39:02,012 INFO L225 Difference]: With dead ends: 80 [2020-11-29 13:39:02,013 INFO L226 Difference]: Without dead ends: 37 [2020-11-29 13:39:02,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 13:39:02,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-29 13:39:02,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-29 13:39:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-29 13:39:02,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2020-11-29 13:39:02,053 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2020-11-29 13:39:02,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 13:39:02,053 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2020-11-29 13:39:02,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 13:39:02,054 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2020-11-29 13:39:02,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 13:39:02,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 13:39:02,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 13:39:02,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 13:39:02,273 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 13:39:02,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 13:39:02,275 INFO L82 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2020-11-29 13:39:02,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 13:39:02,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [367734655] [2020-11-29 13:39:02,276 INFO L95 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 [2020-11-29 13:39:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 13:39:02,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 13:39:02,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 13:39:03,024 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 4 [2020-11-29 13:39:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:39:03,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 13:39:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:39:04,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [367734655] [2020-11-29 13:39:04,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 13:39:04,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 13:39:04,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639109739] [2020-11-29 13:39:04,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 13:39:04,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 13:39:04,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 13:39:04,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-29 13:39:04,140 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 8 states. [2020-11-29 13:39:04,501 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-29 13:39:04,753 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-29 13:39:17,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 13:39:17,449 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2020-11-29 13:39:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 13:39:17,923 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-29 13:39:17,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 13:39:17,924 INFO L225 Difference]: With dead ends: 61 [2020-11-29 13:39:17,924 INFO L226 Difference]: Without dead ends: 31 [2020-11-29 13:39:17,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-11-29 13:39:17,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-29 13:39:17,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-11-29 13:39:17,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 13:39:17,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2020-11-29 13:39:17,932 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2020-11-29 13:39:17,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 13:39:17,932 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2020-11-29 13:39:17,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 13:39:17,933 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2020-11-29 13:39:17,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 13:39:17,933 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 13:39:17,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 13:39:18,134 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 13:39:18,135 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 13:39:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 13:39:18,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2020-11-29 13:39:18,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 13:39:18,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973971794] [2020-11-29 13:39:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 13:39:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 13:39:18,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 13:39:18,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 13:39:19,025 WARN L197 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 12 [2020-11-29 13:39:20,025 WARN L197 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-11-29 13:39:21,411 WARN L197 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-11-29 13:39:21,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:39:21,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 13:39:28,042 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 13:39:28,056 INFO L626 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 13:39:40,534 WARN L197 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 18 DAG size of output: 13 [2020-11-29 13:39:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:39:40,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973971794] [2020-11-29 13:39:40,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 13:39:40,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-29 13:39:40,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143280146] [2020-11-29 13:39:40,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 13:39:40,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 13:39:40,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 13:39:40,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=65, Unknown=2, NotChecked=0, Total=90 [2020-11-29 13:39:40,557 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 10 states. [2020-11-29 13:39:43,073 WARN L197 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 13:39:49,228 WARN L197 SmtUtils]: Spent 4.98 s on a formula simplification that was a NOOP. DAG size: 21 [2020-11-29 13:40:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 13:40:27,141 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-11-29 13:40:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 13:40:27,142 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2020-11-29 13:40:27,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 13:40:27,143 INFO L225 Difference]: With dead ends: 31 [2020-11-29 13:40:27,143 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 13:40:27,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=42, Invalid=88, Unknown=2, NotChecked=0, Total=132 [2020-11-29 13:40:27,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 13:40:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 13:40:27,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 13:40:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-29 13:40:27,148 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2020-11-29 13:40:27,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 13:40:27,148 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-29 13:40:27,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 13:40:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-29 13:40:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 13:40:27,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 13:40:27,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 13:40:27,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 13:40:27,351 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 13:40:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 13:40:27,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2020-11-29 13:40:27,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 13:40:27,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045155935] [2020-11-29 13:40:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 13:40:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 13:40:30,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 13:40:30,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 13:40:30,401 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-29 13:40:30,843 WARN L197 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-11-29 13:40:30,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:40:30,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 13:40:33,426 WARN L197 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-29 13:40:33,446 INFO L626 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 13:40:41,028 WARN L197 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 17 DAG size of output: 12 [2020-11-29 13:40:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 13:40:41,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045155935] [2020-11-29 13:40:41,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 13:40:41,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 13:40:41,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830396760] [2020-11-29 13:40:41,035 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 13:40:41,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 13:40:41,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 13:40:41,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2020-11-29 13:40:41,037 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 6 states. [2020-11-29 13:40:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 13:40:41,571 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-29 13:40:41,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 13:40:41,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 13:40:41,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 13:40:41,573 INFO L225 Difference]: With dead ends: 27 [2020-11-29 13:40:41,573 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 13:40:41,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2020-11-29 13:40:41,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 13:40:41,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 13:40:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 13:40:41,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 13:40:41,574 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 13:40:41,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 13:40:41,575 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 13:40:41,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 13:40:41,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 13:40:41,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 13:40:41,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 13:40:41,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 13:40:42,683 WARN L197 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 13:40:42,852 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-11-29 13:40:42,884 INFO L262 CegarLoopResult]: For program point L60(lines 60 71) no Hoare annotation was computed. [2020-11-29 13:40:42,884 INFO L262 CegarLoopResult]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2020-11-29 13:40:42,884 INFO L258 CegarLoopResult]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2020-11-29 13:40:42,884 INFO L262 CegarLoopResult]: For program point L102(lines 102 130) no Hoare annotation was computed. [2020-11-29 13:40:42,884 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L265 CegarLoopResult]: At program point L152(lines 133 153) the Hoare annotation is: true [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point L70-2(line 70) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2020-11-29 13:40:42,885 INFO L258 CegarLoopResult]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2020-11-29 13:40:42,885 INFO L262 CegarLoopResult]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2020-11-29 13:40:42,886 INFO L262 CegarLoopResult]: For program point L79(lines 79 88) no Hoare annotation was computed. [2020-11-29 13:40:42,886 INFO L262 CegarLoopResult]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2020-11-29 13:40:42,886 INFO L262 CegarLoopResult]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2020-11-29 13:40:42,886 INFO L258 CegarLoopResult]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2020-11-29 13:40:42,886 INFO L258 CegarLoopResult]: At program point L129(lines 46 131) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53))))) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53)))) [2020-11-29 13:40:42,887 INFO L262 CegarLoopResult]: For program point L146(lines 146 149) no Hoare annotation was computed. [2020-11-29 13:40:42,887 INFO L262 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-11-29 13:40:42,887 INFO L262 CegarLoopResult]: For program point L98(lines 98 101) no Hoare annotation was computed. [2020-11-29 13:40:42,887 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 13:40:42,887 INFO L262 CegarLoopResult]: For program point L123(lines 123 128) no Hoare annotation was computed. [2020-11-29 13:40:42,888 INFO L262 CegarLoopResult]: For program point L90(lines 90 93) no Hoare annotation was computed. [2020-11-29 13:40:42,888 INFO L262 CegarLoopResult]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2020-11-29 13:40:42,888 INFO L262 CegarLoopResult]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2020-11-29 13:40:42,888 INFO L262 CegarLoopResult]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2020-11-29 13:40:42,888 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 13:40:42,888 INFO L262 CegarLoopResult]: For program point L74(lines 74 75) no Hoare annotation was computed. [2020-11-29 13:40:42,889 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 13:40:42,889 INFO L262 CegarLoopResult]: For program point L91(lines 91 92) no Hoare annotation was computed. [2020-11-29 13:40:42,889 INFO L262 CegarLoopResult]: For program point L141(lines 141 150) no Hoare annotation was computed. [2020-11-29 13:40:42,889 INFO L262 CegarLoopResult]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2020-11-29 13:40:42,889 INFO L262 CegarLoopResult]: For program point L59(lines 59 76) no Hoare annotation was computed. [2020-11-29 13:40:42,890 INFO L262 CegarLoopResult]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2020-11-29 13:40:42,890 INFO L262 CegarLoopResult]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2020-11-29 13:40:42,890 INFO L258 CegarLoopResult]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~huge_exp~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (fp.eq ULTIMATE.start___ieee754_exp_~x (fp.neg (_ +zero 11 53)))) [2020-11-29 13:40:42,890 INFO L262 CegarLoopResult]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2020-11-29 13:40:42,890 INFO L262 CegarLoopResult]: For program point L109(lines 109 114) no Hoare annotation was computed. [2020-11-29 13:40:42,891 INFO L262 CegarLoopResult]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2020-11-29 13:40:42,891 INFO L262 CegarLoopResult]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2020-11-29 13:40:42,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:42,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:42,905 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:42,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,910 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:42,910 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:42,910 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:42,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,911 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,912 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:42,912 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,913 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,913 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,914 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:42,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,914 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:42,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:40:42 BoogieIcfgContainer [2020-11-29 13:40:42,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 13:40:42,918 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 13:40:42,918 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 13:40:42,918 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 13:40:42,919 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:39:01" (3/4) ... [2020-11-29 13:40:42,922 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 13:40:42,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-29 13:40:42,938 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-29 13:40:42,939 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 13:40:42,940 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 13:40:42,970 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) [2020-11-29 13:40:43,048 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 13:40:43,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 13:40:43,050 INFO L168 Benchmark]: Toolchain (without parser) took 120856.34 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 42.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,051 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 27.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 13:40:43,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.81 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 26.2 MB in the end (delta: 81.0 kB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.57 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,053 INFO L168 Benchmark]: Boogie Preprocessor took 80.02 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 24.0 MB in the beginning and 45.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,054 INFO L168 Benchmark]: RCFGBuilder took 18224.13 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 30.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,054 INFO L168 Benchmark]: TraceAbstraction took 101724.82 ms. Allocated memory is still 62.9 MB. Free memory was 29.9 MB in the beginning and 25.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,055 INFO L168 Benchmark]: Witness Printer took 131.24 ms. Allocated memory is still 62.9 MB. Free memory was 25.0 MB in the beginning and 42.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 13:40:43,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 50.3 MB. Free memory was 27.9 MB in the beginning and 27.9 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 616.81 ms. Allocated memory is still 50.3 MB. Free memory was 26.3 MB in the beginning and 26.2 MB in the end (delta: 81.0 kB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.57 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 24.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.02 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 24.0 MB in the beginning and 45.6 MB in the end (delta: -21.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18224.13 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 30.3 MB in the end (delta: 15.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 101724.82 ms. Allocated memory is still 62.9 MB. Free memory was 29.9 MB in the beginning and 25.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 131.24 ms. Allocated memory is still 62.9 MB. Free memory was 25.0 MB in the beginning and 42.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2020-11-29 13:40:43,074 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:43,075 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:43,075 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:43,075 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,076 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:43,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:43,077 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2020-11-29 13:40:43,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())))) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 51]: Loop Invariant [2020-11-29 13:40:43,079 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:43,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,080 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 13:40:43,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 13:40:43,081 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) && ~fp.eq~DOUBLE(x, ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 100.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 60.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 61 SDslu, 171 SDs, 0 SdLazy, 45 SolverSat, 5 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 50.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 41.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 49 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 34.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 7497 SizeOfPredicates, 21 NumberOfNonLiveVariables, 347 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...