./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620a.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 5b13cd337396811bf9b23b015fd97985af6ec65a ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620a.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 5b13cd337396811bf9b23b015fd97985af6ec65a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 14:38:52,442 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 14:38:52,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 14:38:52,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 14:38:52,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 14:38:52,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 14:38:52,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 14:38:52,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 14:38:52,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 14:38:52,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 14:38:52,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 14:38:52,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 14:38:52,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 14:38:52,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 14:38:52,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 14:38:52,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 14:38:52,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 14:38:52,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 14:38:52,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 14:38:52,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 14:38:52,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 14:38:52,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 14:38:52,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 14:38:52,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 14:38:52,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 14:38:52,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 14:38:52,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 14:38:52,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 14:38:52,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 14:38:52,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 14:38:52,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 14:38:52,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 14:38:52,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 14:38:52,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 14:38:52,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 14:38:52,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 14:38:52,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 14:38:52,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 14:38:52,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 14:38:52,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 14:38:52,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 14:38:52,596 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 14:38:52,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 14:38:52,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 14:38:52,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 14:38:52,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 14:38:52,656 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 14:38:52,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 14:38:52,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 14:38:52,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 14:38:52,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 14:38:52,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 14:38:52,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 14:38:52,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 14:38:52,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 14:38:52,659 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 14:38:52,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 14:38:52,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 14:38:52,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 14:38:52,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 14:38:52,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 14:38:52,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 14:38:52,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 14:38:52,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 14:38:52,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 14:38:52,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 14:38:52,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 14:38:52,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 14:38:52,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 14:38:52,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 14:38:52,664 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 14:38:52,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b13cd337396811bf9b23b015fd97985af6ec65a [2020-11-29 14:38:53,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 14:38:53,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 14:38:53,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 14:38:53,170 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 14:38:53,171 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 14:38:53,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620a.c [2020-11-29 14:38:53,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95224a15c/826b7b199afe419297b743aa328a94c2/FLAGe9ee6851f [2020-11-29 14:38:53,983 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 14:38:53,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0620a.c [2020-11-29 14:38:53,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95224a15c/826b7b199afe419297b743aa328a94c2/FLAGe9ee6851f [2020-11-29 14:38:54,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95224a15c/826b7b199afe419297b743aa328a94c2 [2020-11-29 14:38:54,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 14:38:54,312 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 14:38:54,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 14:38:54,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 14:38:54,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 14:38:54,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8d5cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54, skipping insertion in model container [2020-11-29 14:38:54,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 14:38:54,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 14:38:54,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 14:38:54,642 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 14:38:54,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 14:38:54,724 INFO L208 MainTranslator]: Completed translation [2020-11-29 14:38:54,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54 WrapperNode [2020-11-29 14:38:54,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 14:38:54,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 14:38:54,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 14:38:54,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 14:38:54,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,749 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 14:38:54,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 14:38:54,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 14:38:54,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 14:38:54,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... [2020-11-29 14:38:54,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 14:38:54,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 14:38:54,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 14:38:54,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 14:38:54,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 14:38:54,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 14:38:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 14:38:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 14:38:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 14:38:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 14:38:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 14:38:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 14:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 14:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 14:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 14:38:55,546 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 14:38:55,546 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 14:38:55,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:38:55 BoogieIcfgContainer [2020-11-29 14:38:55,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 14:38:55,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 14:38:55,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 14:38:55,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 14:38:55,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:38:54" (1/3) ... [2020-11-29 14:38:55,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b95adc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:38:55, skipping insertion in model container [2020-11-29 14:38:55,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:38:54" (2/3) ... [2020-11-29 14:38:55,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b95adc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:38:55, skipping insertion in model container [2020-11-29 14:38:55,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:38:55" (3/3) ... [2020-11-29 14:38:55,563 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2020-11-29 14:38:55,584 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 14:38:55,588 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 14:38:55,600 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 14:38:55,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 14:38:55,625 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 14:38:55,625 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 14:38:55,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 14:38:55,626 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 14:38:55,626 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 14:38:55,626 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 14:38:55,626 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 14:38:55,643 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 14:38:55,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 14:38:55,649 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:38:55,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:38:55,651 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:38:55,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:38:55,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-11-29 14:38:55,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 14:38:55,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836647545] [2020-11-29 14:38:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 14:38:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 14:38:55,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:38:55,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836647545] [2020-11-29 14:38:55,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 14:38:55,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 14:38:55,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168802347] [2020-11-29 14:38:55,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 14:38:55,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 14:38:55,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 14:38:55,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 14:38:55,881 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 14:38:55,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 14:38:55,905 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 14:38:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 14:38:55,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 14:38:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 14:38:55,919 INFO L225 Difference]: With dead ends: 73 [2020-11-29 14:38:55,919 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 14:38:55,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 14:38:55,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 14:38:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 14:38:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 14:38:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 14:38:55,978 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-11-29 14:38:55,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 14:38:55,978 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 14:38:55,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 14:38:55,979 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 14:38:55,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 14:38:55,980 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:38:55,980 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:38:55,981 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 14:38:55,981 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:38:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:38:55,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-11-29 14:38:55,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 14:38:55,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115163610] [2020-11-29 14:38:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 14:38:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 14:38:56,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 14:38:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 14:38:56,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 14:38:56,195 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 14:38:56,196 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 14:38:56,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 14:38:56,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:38:56 BoogieIcfgContainer [2020-11-29 14:38:56,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 14:38:56,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 14:38:56,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 14:38:56,256 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 14:38:56,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:38:55" (3/4) ... [2020-11-29 14:38:56,261 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 14:38:56,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 14:38:56,266 INFO L168 Benchmark]: Toolchain (without parser) took 1956.99 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.5 MB in the beginning and 38.2 MB in the end (delta: -4.7 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-11-29 14:38:56,267 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 37.7 MB. Free memory was 24.3 MB in the beginning and 24.2 MB in the end (delta: 19.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 14:38:56,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.61 ms. Allocated memory is still 56.6 MB. Free memory was 32.8 MB in the beginning and 35.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 14:38:56,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.34 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 33.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 14:38:56,271 INFO L168 Benchmark]: Boogie Preprocessor took 44.73 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 31.6 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 14:38:56,272 INFO L168 Benchmark]: RCFGBuilder took 716.35 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 38.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-11-29 14:38:56,273 INFO L168 Benchmark]: TraceAbstraction took 704.86 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 43.4 kB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-11-29 14:38:56,274 INFO L168 Benchmark]: Witness Printer took 5.89 ms. Allocated memory is still 69.2 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 14:38:56,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 37.7 MB. Free memory was 24.3 MB in the beginning and 24.2 MB in the end (delta: 19.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 411.61 ms. Allocated memory is still 56.6 MB. Free memory was 32.8 MB in the beginning and 35.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.34 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 33.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.73 ms. Allocated memory is still 56.6 MB. Free memory was 33.5 MB in the beginning and 31.6 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 716.35 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 38.8 MB in the end (delta: -7.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 704.86 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 43.4 kB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.89 ms. Allocated memory is still 69.2 MB. Free memory is still 38.2 MB. 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 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L139] float x = 0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0620a.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 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: 48 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=38occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-0e1a00c [2020-11-29 14:38:58,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 14:38:58,745 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 14:38:58,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 14:38:58,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 14:38:58,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 14:38:58,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 14:38:58,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 14:38:58,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 14:38:58,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 14:38:58,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 14:38:58,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 14:38:58,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 14:38:58,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 14:38:58,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 14:38:58,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 14:38:58,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 14:38:58,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 14:38:58,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 14:38:58,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 14:38:58,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 14:38:58,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 14:38:58,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 14:38:58,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 14:38:58,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 14:38:58,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 14:38:58,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 14:38:58,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 14:38:58,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 14:38:58,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 14:38:58,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 14:38:58,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 14:38:58,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 14:38:58,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 14:38:58,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 14:38:58,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 14:38:58,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 14:38:58,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 14:38:58,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 14:38:58,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 14:38:58,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 14:38:58,893 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 14:38:58,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 14:38:58,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 14:38:58,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 14:38:58,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 14:38:58,958 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 14:38:58,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 14:38:58,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 14:38:58,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 14:38:58,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 14:38:58,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 14:38:58,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 14:38:58,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 14:38:58,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 14:38:58,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 14:38:58,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 14:38:58,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 14:38:58,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 14:38:58,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 14:38:58,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 14:38:58,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 14:38:58,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 14:38:58,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 14:38:58,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 14:38:58,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 14:38:58,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 14:38:58,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 14:38:58,966 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 14:38:58,966 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 14:38:58,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 14:38:58,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 14:38:58,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 14:38:58,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b13cd337396811bf9b23b015fd97985af6ec65a [2020-11-29 14:38:59,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 14:38:59,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 14:38:59,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 14:38:59,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 14:38:59,474 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 14:38:59,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0620a.c [2020-11-29 14:38:59,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e1115d3/56241e4c20e049dfab7853d107b6b0bb/FLAG6b886a043 [2020-11-29 14:39:00,195 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 14:39:00,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0620a.c [2020-11-29 14:39:00,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e1115d3/56241e4c20e049dfab7853d107b6b0bb/FLAG6b886a043 [2020-11-29 14:39:00,554 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e1115d3/56241e4c20e049dfab7853d107b6b0bb [2020-11-29 14:39:00,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 14:39:00,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 14:39:00,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 14:39:00,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 14:39:00,574 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 14:39:00,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:00,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2407a96f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00, skipping insertion in model container [2020-11-29 14:39:00,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:00,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 14:39:00,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 14:39:00,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 14:39:00,888 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 14:39:00,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 14:39:00,968 INFO L208 MainTranslator]: Completed translation [2020-11-29 14:39:00,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00 WrapperNode [2020-11-29 14:39:00,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 14:39:00,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 14:39:00,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 14:39:00,971 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 14:39:00,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:00,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 14:39:01,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 14:39:01,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 14:39:01,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 14:39:01,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... [2020-11-29 14:39:01,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 14:39:01,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 14:39:01,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 14:39:01,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 14:39:01,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 14:39:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-29 14:39:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 14:39:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 14:39:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 14:39:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 14:39:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 14:39:01,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 14:39:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 14:39:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 14:39:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 14:39:16,227 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 14:39:16,227 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 14:39:16,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:39:16 BoogieIcfgContainer [2020-11-29 14:39:16,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 14:39:16,233 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 14:39:16,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 14:39:16,237 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 14:39:16,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:39:00" (1/3) ... [2020-11-29 14:39:16,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aab017d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:39:16, skipping insertion in model container [2020-11-29 14:39:16,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:39:00" (2/3) ... [2020-11-29 14:39:16,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aab017d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:39:16, skipping insertion in model container [2020-11-29 14:39:16,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:39:16" (3/3) ... [2020-11-29 14:39:16,245 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2020-11-29 14:39:16,267 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 14:39:16,272 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 14:39:16,285 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 14:39:16,331 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 14:39:16,331 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 14:39:16,332 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 14:39:16,332 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 14:39:16,332 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 14:39:16,332 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 14:39:16,332 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 14:39:16,333 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 14:39:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 14:39:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 14:39:16,359 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:39:16,360 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:39:16,360 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:39:16,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:39:16,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-11-29 14:39:16,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 14:39:16,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971383690] [2020-11-29 14:39:16,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 14:39:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 14:39:17,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 14:39:17,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 14:39:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:17,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 14:39:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:17,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971383690] [2020-11-29 14:39:17,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 14:39:17,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 14:39:17,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951223657] [2020-11-29 14:39:17,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 14:39:17,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 14:39:17,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 14:39:17,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 14:39:17,340 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 14:39:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 14:39:17,360 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-11-29 14:39:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 14:39:17,362 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 14:39:17,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 14:39:17,373 INFO L225 Difference]: With dead ends: 73 [2020-11-29 14:39:17,373 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 14:39:17,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 14:39:17,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 14:39:17,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 14:39:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 14:39:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-11-29 14:39:17,414 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-11-29 14:39:17,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 14:39:17,415 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-11-29 14:39:17,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 14:39:17,415 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-11-29 14:39:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 14:39:17,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:39:17,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:39:17,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 14:39:17,628 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:39:17,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:39:17,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-11-29 14:39:17,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 14:39:17,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850416423] [2020-11-29 14:39:17,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 14:39:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 14:39:18,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 14:39:18,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 14:39:18,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:18,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 14:39:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:19,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850416423] [2020-11-29 14:39:19,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 14:39:19,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 14:39:19,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347776241] [2020-11-29 14:39:19,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 14:39:19,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 14:39:19,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 14:39:19,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 14:39:19,212 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-11-29 14:39:26,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 14:39:26,484 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2020-11-29 14:39:26,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 14:39:26,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 14:39:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 14:39:26,486 INFO L225 Difference]: With dead ends: 57 [2020-11-29 14:39:26,487 INFO L226 Difference]: Without dead ends: 32 [2020-11-29 14:39:26,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 14:39:26,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-29 14:39:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-11-29 14:39:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-29 14:39:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-11-29 14:39:26,493 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2020-11-29 14:39:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 14:39:26,493 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-11-29 14:39:26,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 14:39:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-11-29 14:39:26,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 14:39:26,494 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:39:26,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:39:26,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 14:39:26,711 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:39:26,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:39:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2020-11-29 14:39:26,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 14:39:26,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781317243] [2020-11-29 14:39:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 14:39:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 14:39:27,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 14:39:27,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 14:39:27,901 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 1 [2020-11-29 14:39:27,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:27,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 14:39:28,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:28,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781317243] [2020-11-29 14:39:28,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 14:39:28,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-29 14:39:28,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972832077] [2020-11-29 14:39:28,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-29 14:39:28,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 14:39:28,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 14:39:28,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-29 14:39:28,144 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-11-29 14:39:43,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 14:39:43,360 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-11-29 14:39:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 14:39:43,362 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-11-29 14:39:43,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 14:39:43,362 INFO L225 Difference]: With dead ends: 35 [2020-11-29 14:39:43,363 INFO L226 Difference]: Without dead ends: 32 [2020-11-29 14:39:43,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 14:39:43,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-29 14:39:43,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-11-29 14:39:43,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 14:39:43,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-11-29 14:39:43,369 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-11-29 14:39:43,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 14:39:43,370 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-11-29 14:39:43,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-29 14:39:43,370 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-11-29 14:39:43,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 14:39:43,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:39:43,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:39:43,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 14:39:43,584 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:39:43,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:39:43,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2020-11-29 14:39:43,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 14:39:43,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887014781] [2020-11-29 14:39:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 14:39:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 14:39:45,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 14:39:45,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 14:39:45,658 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 14:39:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:45,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 14:39:46,358 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-29 14:39:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:46,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887014781] [2020-11-29 14:39:46,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 14:39:46,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 14:39:46,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363342384] [2020-11-29 14:39:46,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 14:39:46,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 14:39:46,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 14:39:46,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 14:39:46,768 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-11-29 14:39:47,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 14:39:47,011 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-11-29 14:39:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 14:39:47,017 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-29 14:39:47,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 14:39:47,017 INFO L225 Difference]: With dead ends: 32 [2020-11-29 14:39:47,018 INFO L226 Difference]: Without dead ends: 18 [2020-11-29 14:39:47,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 14:39:47,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-29 14:39:47,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 14:39:47,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 14:39:47,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-11-29 14:39:47,022 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-11-29 14:39:47,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 14:39:47,022 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-11-29 14:39:47,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 14:39:47,022 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-11-29 14:39:47,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 14:39:47,023 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 14:39:47,023 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 14:39:47,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 14:39:47,224 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 14:39:47,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 14:39:47,226 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2020-11-29 14:39:47,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 14:39:47,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090802757] [2020-11-29 14:39:47,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 14:39:48,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 14:39:48,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-29 14:39:48,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 14:39:48,457 INFO L626 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 14:39:48,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:48,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 14:39:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 14:39:49,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090802757] [2020-11-29 14:39:49,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 14:39:49,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-29 14:39:49,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187078456] [2020-11-29 14:39:49,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-29 14:39:49,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 14:39:49,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-29 14:39:49,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-29 14:39:49,787 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-11-29 14:39:50,741 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-11-29 14:39:50,911 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-29 14:39:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 14:39:50,930 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-11-29 14:39:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 14:39:50,933 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-11-29 14:39:50,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 14:39:50,934 INFO L225 Difference]: With dead ends: 18 [2020-11-29 14:39:50,934 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 14:39:50,935 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-11-29 14:39:50,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 14:39:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 14:39:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 14:39:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 14:39:50,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-29 14:39:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 14:39:50,936 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 14:39:50,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-29 14:39:50,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 14:39:50,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 14:39:51,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 14:39:51,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 14:39:51,459 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-11-29 14:39:51,608 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-11-29 14:39:51,834 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-29 14:39:51,930 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-11-29 14:39:51,930 INFO L262 CegarLoopResult]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2020-11-29 14:39:51,930 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 14:39:51,930 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 14:39:51,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 14:39:51,930 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 14:39:51,930 INFO L258 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: false [2020-11-29 14:39:51,931 INFO L262 CegarLoopResult]: For program point L111(lines 111 116) no Hoare annotation was computed. [2020-11-29 14:39:51,931 INFO L258 CegarLoopResult]: At program point L128(lines 119 129) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short36|) [2020-11-29 14:39:51,931 INFO L262 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-11-29 14:39:51,931 INFO L258 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short36|) [2020-11-29 14:39:51,931 INFO L262 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-11-29 14:39:51,931 INFO L262 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L81(lines 81 97) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L73(lines 73 98) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L65(lines 65 72) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L90(lines 90 96) no Hoare annotation was computed. [2020-11-29 14:39:51,932 INFO L262 CegarLoopResult]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2020-11-29 14:39:51,933 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 14:39:51,933 INFO L265 CegarLoopResult]: At program point L148(lines 131 149) the Hoare annotation is: true [2020-11-29 14:39:51,933 INFO L262 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-11-29 14:39:51,933 INFO L262 CegarLoopResult]: For program point L82(lines 82 88) no Hoare annotation was computed. [2020-11-29 14:39:51,933 INFO L262 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-11-29 14:39:51,933 INFO L258 CegarLoopResult]: At program point L115-3(lines 55 117) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-29 14:39:51,933 INFO L262 CegarLoopResult]: For program point L74(lines 74 77) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point L75(lines 75 76) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L258 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-11-29 14:39:51,934 INFO L262 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-29 14:39:51,935 INFO L258 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2020-11-29 14:39:51,935 INFO L262 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2020-11-29 14:39:51,949 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,952 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,953 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,967 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,970 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,973 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,980 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,981 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,990 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:51,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,990 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,991 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:51,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:39:51 BoogieIcfgContainer [2020-11-29 14:39:51,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 14:39:51,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 14:39:51,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 14:39:51,999 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 14:39:51,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:39:16" (3/4) ... [2020-11-29 14:39:52,004 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 14:39:52,024 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 14:39:52,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 14:39:52,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 14:39:52,026 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 14:39:52,056 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2020-11-29 14:39:52,057 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-11-29 14:39:52,058 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-11-29 14:39:52,103 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 14:39:52,104 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 14:39:52,105 INFO L168 Benchmark]: Toolchain (without parser) took 51545.58 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 28.8 MB in the beginning and 32.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,106 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 14:39:52,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.28 ms. Allocated memory is still 52.4 MB. Free memory was 28.2 MB in the beginning and 27.9 MB in the end (delta: 225.0 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.84 ms. Allocated memory is still 52.4 MB. Free memory was 27.9 MB in the beginning and 25.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,113 INFO L168 Benchmark]: Boogie Preprocessor took 63.49 ms. Allocated memory is still 52.4 MB. Free memory was 25.6 MB in the beginning and 23.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,113 INFO L168 Benchmark]: RCFGBuilder took 15122.29 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 23.2 MB in the beginning and 39.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,114 INFO L168 Benchmark]: TraceAbstraction took 35764.84 ms. Allocated memory is still 67.1 MB. Free memory was 38.6 MB in the beginning and 38.0 MB in the end (delta: 588.2 kB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,114 INFO L168 Benchmark]: Witness Printer took 105.48 ms. Allocated memory is still 67.1 MB. Free memory was 38.0 MB in the beginning and 32.2 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 14:39:52,117 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 52.4 MB. Free memory was 34.2 MB in the beginning and 34.1 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.28 ms. Allocated memory is still 52.4 MB. Free memory was 28.2 MB in the beginning and 27.9 MB in the end (delta: 225.0 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.84 ms. Allocated memory is still 52.4 MB. Free memory was 27.9 MB in the beginning and 25.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.49 ms. Allocated memory is still 52.4 MB. Free memory was 25.6 MB in the beginning and 23.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15122.29 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 23.2 MB in the beginning and 39.2 MB in the end (delta: -16.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 35764.84 ms. Allocated memory is still 67.1 MB. Free memory was 38.6 MB in the beginning and 38.0 MB in the end (delta: 588.2 kB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Witness Printer took 105.48 ms. Allocated memory is still 67.1 MB. Free memory was 38.0 MB in the beginning and 32.2 MB in the end (delta: 5.8 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 55]: Loop Invariant [2020-11-29 14:39:52,130 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,131 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,134 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,135 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 119]: Loop Invariant [2020-11-29 14:39:52,135 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,136 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,137 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2020-11-29 14:39:52,143 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,143 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,144 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,145 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,145 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 59]: Loop Invariant [2020-11-29 14:39:52,147 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,148 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,150 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 14:39:52,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 14:39:52,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 34.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 23.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 183 SDslu, 183 SDs, 0 SdLazy, 72 SolverSat, 13 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 22.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 122 HoareAnnotationTreeSize, 7 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 8909 SizeOfPredicates, 28 NumberOfNonLiveVariables, 523 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...