./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0971.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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 ../sv-benchmarks/c/float-newlib/float_req_bl_0971.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 0c154d02c9b21beef7a386877c7c252d45eb859a ........................................................................................................................................................................................................................................................................................................ 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 ../sv-benchmarks/c/float-newlib/float_req_bl_0971.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 0c154d02c9b21beef7a386877c7c252d45eb859a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:24:55,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:24:55,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:24:55,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:24:55,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:24:55,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:24:55,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:24:55,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:24:55,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:24:55,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:24:55,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:24:55,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:24:55,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:24:55,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:24:55,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:24:55,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:24:55,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:24:55,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:24:55,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:24:55,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:24:55,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:24:55,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:24:55,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:24:55,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:24:55,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:24:55,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:24:55,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:24:55,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:24:55,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:24:55,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:24:55,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:24:55,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:24:55,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:24:55,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:24:55,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:24:55,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:24:55,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:24:55,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:24:55,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:24:55,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:24:55,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:24:55,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:24:55,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:24:55,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:24:55,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:24:55,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:24:55,777 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:24:55,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:24:55,778 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:24:55,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:24:55,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:24:55,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:24:55,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:24:55,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:24:55,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:24:55,780 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:24:55,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:24:55,781 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:24:55,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:24:55,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:24:55,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:24:55,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:24:55,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:24:55,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:24:55,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:24:55,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:24:55,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:24:55,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:24:55,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:24:55,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:24:55,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:24:55,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2020-10-24 23:24:56,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:24:56,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:24:56,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:24:56,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:24:56,289 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:24:56,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-10-24 23:24:56,389 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf8e4502/71f645fc554240f5bcf3a920af4f239c/FLAG101075d7d [2020-10-24 23:24:57,089 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:24:57,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-10-24 23:24:57,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf8e4502/71f645fc554240f5bcf3a920af4f239c/FLAG101075d7d [2020-10-24 23:24:57,384 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bf8e4502/71f645fc554240f5bcf3a920af4f239c [2020-10-24 23:24:57,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:24:57,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:24:57,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:24:57,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:24:57,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:24:57,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a173c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57, skipping insertion in model container [2020-10-24 23:24:57,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:24:57,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:24:57,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:24:57,761 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:24:57,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:24:57,829 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:24:57,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57 WrapperNode [2020-10-24 23:24:57,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:24:57,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:24:57,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:24:57,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:24:57,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:24:57,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:24:57,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:24:57,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:24:57,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:57,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (1/1) ... [2020-10-24 23:24:58,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:24:58,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:24:58,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:24:58,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:24:58,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (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 [2020-10-24 23:24:58,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:24:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:24:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:24:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:24:58,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:24:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:24:58,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:24:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:24:58,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:24:58,636 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:24:58,636 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-24 23:24:58,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:58 BoogieIcfgContainer [2020-10-24 23:24:58,638 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:24:58,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:24:58,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:24:58,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:24:58,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:24:57" (1/3) ... [2020-10-24 23:24:58,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2f34a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:24:58, skipping insertion in model container [2020-10-24 23:24:58,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:24:57" (2/3) ... [2020-10-24 23:24:58,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2f34a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:24:58, skipping insertion in model container [2020-10-24 23:24:58,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:58" (3/3) ... [2020-10-24 23:24:58,652 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2020-10-24 23:24:58,664 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:24:58,675 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:24:58,689 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:24:58,715 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:24:58,716 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:24:58,716 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:24:58,716 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:24:58,716 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:24:58,716 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:24:58,716 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:24:58,717 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:24:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-24 23:24:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:24:58,740 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:58,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:58,741 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:58,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-10-24 23:24:58,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:24:58,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353781886] [2020-10-24 23:24:58,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:24:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:24:58,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:24:58,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353781886] [2020-10-24 23:24:58,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:24:58,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:24:58,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769354190] [2020-10-24 23:24:58,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:24:58,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:24:58,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:24:58,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:24:58,954 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-10-24 23:24:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:24:58,980 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-10-24 23:24:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:24:58,984 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:24:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:24:58,995 INFO L225 Difference]: With dead ends: 87 [2020-10-24 23:24:58,995 INFO L226 Difference]: Without dead ends: 41 [2020-10-24 23:24:58,999 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 [2020-10-24 23:24:59,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-24 23:24:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-24 23:24:59,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:24:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-10-24 23:24:59,042 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-10-24 23:24:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:24:59,043 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-10-24 23:24:59,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:24:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-10-24 23:24:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:24:59,044 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:24:59,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:24:59,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:24:59,045 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:24:59,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:24:59,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-10-24 23:24:59,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:24:59,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14769824] [2020-10-24 23:24:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:24:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:24:59,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:24:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:24:59,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:24:59,272 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:24:59,272 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:24:59,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:24:59,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:24:59 BoogieIcfgContainer [2020-10-24 23:24:59,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:24:59,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:24:59,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:24:59,350 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:24:59,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:24:58" (3/4) ... [2020-10-24 23:24:59,354 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:24:59,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:24:59,357 INFO L168 Benchmark]: Toolchain (without parser) took 1965.70 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.8 MB in the beginning and 26.4 MB in the end (delta: -2.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:59,358 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 37.7 MB. Free memory was 18.1 MB in the beginning and 18.1 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:24:59,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.07 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 21.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:59,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.18 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 30.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:59,361 INFO L168 Benchmark]: Boogie Preprocessor took 99.37 ms. Allocated memory is still 46.1 MB. Free memory was 30.9 MB in the beginning and 28.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:59,362 INFO L168 Benchmark]: RCFGBuilder took 626.86 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 37.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:59,363 INFO L168 Benchmark]: TraceAbstraction took 708.22 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 26.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:24:59,363 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 56.6 MB. Free memory was 26.6 MB in the beginning and 26.4 MB in the end (delta: 260.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:24:59,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 37.7 MB. Free memory was 18.1 MB in the beginning and 18.1 MB in the end (delta: 26.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 430.07 ms. Allocated memory is still 46.1 MB. Free memory was 23.2 MB in the beginning and 21.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.18 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 30.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.37 ms. Allocated memory is still 46.1 MB. Free memory was 30.9 MB in the beginning and 28.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 626.86 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 37.1 MB in the end (delta: -8.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 708.22 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 26.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Witness Printer took 5.03 ms. Allocated memory is still 56.6 MB. Free memory was 26.6 MB in the beginning and 26.4 MB in the end (delta: 260.6 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 someBinaryFLOATComparisonOperation at line 146, overapproximation of someBinaryArithmeticFLOAToperation at line 118, overapproximation of bitwiseAnd at line 117. Possible FailurePath: [L13-L17] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L19] static const float zero_log = 0.0; [L99-L102] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L104] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] float x = 0.0f / 0.0f; [L107] float y, z; [L108] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L111] ieee_float_shape_type gf_u; [L112] gf_u.value = (x) [L113] EXPR gf_u.word [L113] (hx) = gf_u.word [L116] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L117] COND TRUE ((hx & 0x7fffffff) == 0) [L118] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L156] float res = __ieee754_log10f(x); [L146] return x != x; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L159] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0971.c", 3, "reach_error") VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=45occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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-a4ecdab [2020-10-24 23:25:02,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:02,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:02,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:02,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:02,157 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:02,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:02,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:02,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:02,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:02,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:02,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:02,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:02,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:02,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:02,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:02,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:02,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:02,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:02,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:02,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:02,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:02,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:02,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:02,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:02,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:02,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:02,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:02,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:02,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:02,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:02,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:02,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:02,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:02,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:02,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:02,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:02,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:02,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:02,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:02,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:02,211 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:25:02,268 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:02,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:02,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:02,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:02,276 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:02,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:02,276 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:02,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:02,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:02,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:02,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:02,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:02,279 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:25:02,280 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:25:02,280 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:02,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:02,281 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:02,281 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:02,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:02,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:02,282 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:02,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:02,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:02,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:02,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:02,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:02,284 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:25:02,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:25:02,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:02,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:02,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:25:02,285 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c154d02c9b21beef7a386877c7c252d45eb859a [2020-10-24 23:25:02,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:02,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:02,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:02,786 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:02,787 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:02,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-10-24 23:25:02,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3c13628/b54ad755adb545b8b99ba53775c7e16f/FLAG5b79d3f53 [2020-10-24 23:25:03,443 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:03,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0971.c [2020-10-24 23:25:03,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3c13628/b54ad755adb545b8b99ba53775c7e16f/FLAG5b79d3f53 [2020-10-24 23:25:03,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3c13628/b54ad755adb545b8b99ba53775c7e16f [2020-10-24 23:25:03,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:03,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:03,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:03,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:03,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:03,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:03" (1/1) ... [2020-10-24 23:25:03,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a6d434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:03, skipping insertion in model container [2020-10-24 23:25:03,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:03" (1/1) ... [2020-10-24 23:25:03,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:03,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:04,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:04,321 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:04,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:04,402 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:04,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04 WrapperNode [2020-10-24 23:25:04,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:04,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:04,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:04,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:04,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,456 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:04,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:04,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:04,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:04,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... [2020-10-24 23:25:04,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:04,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:04,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:04,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:04,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:25:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:25:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:25:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:25:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:25:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:23,617 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:23,618 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-10-24 23:25:23,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:23 BoogieIcfgContainer [2020-10-24 23:25:23,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:23,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:23,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:23,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:23,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:03" (1/3) ... [2020-10-24 23:25:23,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c96267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:23, skipping insertion in model container [2020-10-24 23:25:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:04" (2/3) ... [2020-10-24 23:25:23,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65c96267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:23, skipping insertion in model container [2020-10-24 23:25:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:23" (3/3) ... [2020-10-24 23:25:23,635 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0971.c [2020-10-24 23:25:23,647 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:23,653 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:23,666 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:23,705 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:23,705 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:23,705 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:23,706 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:23,706 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:23,706 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:23,706 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:23,706 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:23,722 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-24 23:25:23,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 23:25:23,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:23,728 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:23,729 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:23,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:23,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2020-10-24 23:25:23,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:23,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632916866] [2020-10-24 23:25:23,751 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 [2020-10-24 23:25:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:24,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:25:24,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:24,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:24,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:24,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632916866] [2020-10-24 23:25:24,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:24,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:25:24,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251418109] [2020-10-24 23:25:24,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:24,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:24,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:24,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:24,812 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-10-24 23:25:24,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:24,835 INFO L93 Difference]: Finished difference Result 87 states and 141 transitions. [2020-10-24 23:25:24,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:24,837 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-24 23:25:24,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:24,848 INFO L225 Difference]: With dead ends: 87 [2020-10-24 23:25:24,849 INFO L226 Difference]: Without dead ends: 41 [2020-10-24 23:25:24,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:24,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-24 23:25:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-24 23:25:24,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:25:24,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2020-10-24 23:25:24,888 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2020-10-24 23:25:24,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:24,888 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2020-10-24 23:25:24,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-10-24 23:25:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:25:24,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:24,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:25,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:25:25,106 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:25,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:25,108 INFO L82 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2020-10-24 23:25:25,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:25,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136144943] [2020-10-24 23:25:25,111 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 [2020-10-24 23:25:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:25,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:25:25,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:25,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:25,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136144943] [2020-10-24 23:25:25,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:25,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 23:25:25,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668729684] [2020-10-24 23:25:25,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:25:25,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:25,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:25:25,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:25:25,965 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand 6 states. [2020-10-24 23:25:26,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:26,897 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2020-10-24 23:25:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:25:26,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-24 23:25:26,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:26,902 INFO L225 Difference]: With dead ends: 51 [2020-10-24 23:25:26,902 INFO L226 Difference]: Without dead ends: 46 [2020-10-24 23:25:26,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:25:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-24 23:25:26,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2020-10-24 23:25:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:25:26,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2020-10-24 23:25:26,933 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2020-10-24 23:25:26,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:26,934 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2020-10-24 23:25:26,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:25:26,935 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2020-10-24 23:25:26,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:26,938 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:26,939 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:27,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:25:27,153 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:27,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:27,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2020-10-24 23:25:27,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:27,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959267544] [2020-10-24 23:25:27,157 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 [2020-10-24 23:25:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:27,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-24 23:25:27,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:27,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:27,981 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:33,488 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-24 23:25:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:33,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959267544] [2020-10-24 23:25:33,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:33,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-24 23:25:33,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85105675] [2020-10-24 23:25:33,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:25:33,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:33,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:25:33,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:25:33,518 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand 10 states. [2020-10-24 23:25:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:56,942 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2020-10-24 23:25:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:25:56,986 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-10-24 23:25:56,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:56,987 INFO L225 Difference]: With dead ends: 47 [2020-10-24 23:25:56,987 INFO L226 Difference]: Without dead ends: 42 [2020-10-24 23:25:56,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-24 23:25:56,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-24 23:25:56,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2020-10-24 23:25:56,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:25:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2020-10-24 23:25:56,996 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 11 [2020-10-24 23:25:56,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:56,997 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2020-10-24 23:25:56,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:25:56,997 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2020-10-24 23:25:56,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-24 23:25:56,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:56,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:57,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:25:57,200 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:57,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:57,201 INFO L82 PathProgramCache]: Analyzing trace with hash -256490092, now seen corresponding path program 1 times [2020-10-24 23:25:57,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:57,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797789188] [2020-10-24 23:25:57,203 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 [2020-10-24 23:25:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:58,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:25:58,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:58,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:58,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:58,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:58,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797789188] [2020-10-24 23:25:58,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:58,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:25:58,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386261333] [2020-10-24 23:25:58,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:25:58,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:58,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:25:58,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:25:58,348 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 8 states. [2020-10-24 23:25:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:58,501 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2020-10-24 23:25:58,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:25:58,501 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-10-24 23:25:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:58,502 INFO L225 Difference]: With dead ends: 41 [2020-10-24 23:25:58,502 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:25:58,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:25:58,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:25:58,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:25:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:25:58,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:25:58,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-24 23:25:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:58,504 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:25:58,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:25:58,504 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:25:58,504 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:25:58,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:25:58,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:25:58,962 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 27 [2020-10-24 23:25:59,085 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 24 [2020-10-24 23:25:59,089 INFO L274 CegarLoopResult]: For program point L159(lines 159 162) no Hoare annotation was computed. [2020-10-24 23:25:59,089 INFO L274 CegarLoopResult]: For program point L126-1(lines 126 130) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L270 CegarLoopResult]: At program point L126-2(lines 126 130) the Hoare annotation is: false [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point L110-1(lines 110 114) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L270 CegarLoopResult]: At program point L110-2(lines 110 114) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point L110-3(lines 110 114) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:25:59,090 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:25:59,091 INFO L274 CegarLoopResult]: For program point L119(lines 119 120) no Hoare annotation was computed. [2020-10-24 23:25:59,091 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-10-24 23:25:59,091 INFO L274 CegarLoopResult]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2020-10-24 23:25:59,091 INFO L270 CegarLoopResult]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2020-10-24 23:25:59,091 INFO L274 CegarLoopResult]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2020-10-24 23:25:59,091 INFO L270 CegarLoopResult]: At program point L95(lines 21 97) the Hoare annotation is: false [2020-10-24 23:25:59,091 INFO L274 CegarLoopResult]: For program point L38(lines 38 46) no Hoare annotation was computed. [2020-10-24 23:25:59,092 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 46) no Hoare annotation was computed. [2020-10-24 23:25:59,092 INFO L274 CegarLoopResult]: For program point L121(lines 121 122) no Hoare annotation was computed. [2020-10-24 23:25:59,092 INFO L270 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:59,092 INFO L277 CegarLoopResult]: At program point L164(lines 148 165) the Hoare annotation is: true [2020-10-24 23:25:59,092 INFO L274 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2020-10-24 23:25:59,092 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:25:59,092 INFO L274 CegarLoopResult]: For program point L123(lines 123 131) no Hoare annotation was computed. [2020-10-24 23:25:59,093 INFO L274 CegarLoopResult]: For program point L123-1(lines 123 131) no Hoare annotation was computed. [2020-10-24 23:25:59,093 INFO L274 CegarLoopResult]: For program point L57(lines 57 73) no Hoare annotation was computed. [2020-10-24 23:25:59,093 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:25:59,093 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2020-10-24 23:25:59,093 INFO L270 CegarLoopResult]: At program point L41-2(lines 41 45) the Hoare annotation is: false [2020-10-24 23:25:59,093 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:25:59,094 INFO L274 CegarLoopResult]: For program point L58(lines 58 65) no Hoare annotation was computed. [2020-10-24 23:25:59,094 INFO L274 CegarLoopResult]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2020-10-24 23:25:59,094 INFO L270 CegarLoopResult]: At program point L25-2(lines 25 29) the Hoare annotation is: false [2020-10-24 23:25:59,094 INFO L274 CegarLoopResult]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2020-10-24 23:25:59,094 INFO L274 CegarLoopResult]: For program point L50-1(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:25:59,095 INFO L270 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-10-24 23:25:59,095 INFO L274 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:25:59,095 INFO L274 CegarLoopResult]: For program point L67(lines 67 72) no Hoare annotation was computed. [2020-10-24 23:25:59,095 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-10-24 23:25:59,095 INFO L274 CegarLoopResult]: For program point L92(lines 92 95) no Hoare annotation was computed. [2020-10-24 23:25:59,096 INFO L274 CegarLoopResult]: For program point L59(lines 59 64) no Hoare annotation was computed. [2020-10-24 23:25:59,096 INFO L274 CegarLoopResult]: For program point L117(lines 117 118) no Hoare annotation was computed. [2020-10-24 23:25:59,096 INFO L274 CegarLoopResult]: For program point L84(lines 84 96) no Hoare annotation was computed. [2020-10-24 23:25:59,096 INFO L270 CegarLoopResult]: At program point L142(lines 106 143) the Hoare annotation is: (and (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|) (= currentRoundingMode roundNearestTiesToEven) (not (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_log10f_~hx~0) (_ bv0 32))) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_log10f_~x) (= ~zero~0 ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) [2020-10-24 23:25:59,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,114 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,115 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,116 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,119 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,120 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,120 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,120 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,121 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,121 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,122 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,122 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,123 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,124 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,124 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,125 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,126 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,127 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,127 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,128 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,128 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,128 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:59 BoogieIcfgContainer [2020-10-24 23:25:59,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:59,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:59,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:59,134 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:59,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:23" (3/4) ... [2020-10-24 23:25:59,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:25:59,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-10-24 23:25:59,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-10-24 23:25:59,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:59,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:59,185 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:59,186 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) [2020-10-24 23:25:59,255 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:25:59,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:59,260 INFO L168 Benchmark]: Toolchain (without parser) took 55434.30 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 19.0 MB in the beginning and 25.4 MB in the end (delta: -6.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,261 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory is still 26.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:59,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.58 ms. Allocated memory is still 41.9 MB. Free memory was 18.4 MB in the beginning and 17.8 MB in the end (delta: 548.4 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.47 ms. Allocated memory is still 41.9 MB. Free memory was 17.8 MB in the beginning and 15.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,262 INFO L168 Benchmark]: Boogie Preprocessor took 105.57 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 15.5 MB in the beginning and 35.0 MB in the end (delta: -19.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,263 INFO L168 Benchmark]: RCFGBuilder took 18995.87 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 33.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,263 INFO L168 Benchmark]: TraceAbstraction took 35505.29 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 31.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,263 INFO L168 Benchmark]: Witness Printer took 125.35 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 25.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:59,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 41.9 MB. Free memory is still 26.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 568.58 ms. Allocated memory is still 41.9 MB. Free memory was 18.4 MB in the beginning and 17.8 MB in the end (delta: 548.4 kB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.47 ms. Allocated memory is still 41.9 MB. Free memory was 17.8 MB in the beginning and 15.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.57 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 15.5 MB in the beginning and 35.0 MB in the end (delta: -19.5 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 18995.87 ms. Allocated memory is still 52.4 MB. Free memory was 35.0 MB in the beginning and 33.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35505.29 ms. Allocated memory is still 52.4 MB. Free memory was 33.2 MB in the beginning and 31.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Witness Printer took 125.35 ms. Allocated memory is still 52.4 MB. Free memory was 31.3 MB in the beginning and 25.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.3 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 - 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: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-10-24 23:25:59,286 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,287 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,288 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,289 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant [2020-10-24 23:25:59,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,301 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,304 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 106]: Loop Invariant [2020-10-24 23:25:59,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,314 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:25:59,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:25:59,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && !(~bvand32(2147483647bv32, hx) == 0bv32)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && zero == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 35.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 24.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 138 SDtfs, 161 SDslu, 280 SDs, 0 SdLazy, 138 SolverSat, 12 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 23.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 104 GetRequests, 76 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 101 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 12 QuantifiedInterpolants, 6858 SizeOfPredicates, 24 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 28 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! Received shutdown request...