./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.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 cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121b.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 cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:26:18,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:26:18,380 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:26:18,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:26:18,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:26:18,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:26:18,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:26:18,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:26:18,464 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:26:18,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:26:18,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:26:18,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:26:18,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:26:18,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:26:18,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:26:18,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:26:18,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:26:18,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:26:18,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:26:18,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:26:18,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:26:18,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:26:18,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:26:18,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:26:18,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:26:18,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:26:18,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:26:18,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:26:18,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:26:18,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:26:18,517 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:26:18,518 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:26:18,519 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:26:18,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:26:18,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:26:18,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:26:18,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:26:18,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:26:18,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:26:18,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:26:18,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:26:18,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:26:18,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:26:18,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:26:18,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:26:18,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:26:18,556 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:26:18,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:26:18,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:26:18,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:26:18,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:26:18,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:26:18,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:26:18,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:26:18,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:26:18,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:26:18,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:26:18,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:26:18,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:26:18,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:26:18,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:26:18,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:26:18,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:26:18,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:26:18,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:26:18,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:26:18,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:26:18,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:26:18,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:26:18,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:26:18,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:26:18,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f [2020-10-24 23:26:18,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:26:18,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:26:18,999 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:26:19,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:26:19,003 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:26:19,005 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-10-24 23:26:19,094 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492514376/2639eeac311743daab3ccb182fa3aa6b/FLAGb8c2dc4e7 [2020-10-24 23:26:19,685 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:26:19,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-10-24 23:26:19,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492514376/2639eeac311743daab3ccb182fa3aa6b/FLAGb8c2dc4e7 [2020-10-24 23:26:20,040 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492514376/2639eeac311743daab3ccb182fa3aa6b [2020-10-24 23:26:20,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:26:20,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:26:20,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:20,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:26:20,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:26:20,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af9c976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20, skipping insertion in model container [2020-10-24 23:26:20,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:26:20,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:26:20,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:20,357 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:26:20,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:20,418 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:26:20,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20 WrapperNode [2020-10-24 23:26:20,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:20,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:20,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:26:20,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:26:20,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:20,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:26:20,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:26:20,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:26:20,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... [2020-10-24 23:26:20,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:26:20,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:26:20,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:26:20,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:26:20,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:26:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:26:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:26:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:26:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:26:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:26:20,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:26:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:26:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:26:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:26:21,039 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:26:21,039 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-24 23:26:21,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:21 BoogieIcfgContainer [2020-10-24 23:26:21,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:26:21,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:26:21,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:26:21,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:26:21,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:26:20" (1/3) ... [2020-10-24 23:26:21,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4281bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:21, skipping insertion in model container [2020-10-24 23:26:21,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:20" (2/3) ... [2020-10-24 23:26:21,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4281bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:21, skipping insertion in model container [2020-10-24 23:26:21,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:21" (3/3) ... [2020-10-24 23:26:21,053 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2020-10-24 23:26:21,079 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:26:21,094 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:26:21,127 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:26:21,171 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:26:21,171 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:26:21,171 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:26:21,171 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:26:21,172 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:26:21,172 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:26:21,172 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:26:21,172 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:26:21,188 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-24 23:26:21,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:26:21,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:21,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:21,195 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:21,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:21,200 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-10-24 23:26:21,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:26:21,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292893098] [2020-10-24 23:26:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:26:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:21,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:21,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292893098] [2020-10-24 23:26:21,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:21,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:26:21,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035593627] [2020-10-24 23:26:21,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:26:21,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:26:21,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:26:21,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:26:21,387 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-10-24 23:26:21,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:21,418 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-10-24 23:26:21,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:26:21,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:26:21,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:21,429 INFO L225 Difference]: With dead ends: 83 [2020-10-24 23:26:21,430 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 23:26:21,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:26:21,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 23:26:21,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 23:26:21,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 23:26:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-10-24 23:26:21,475 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-10-24 23:26:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:21,475 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-10-24 23:26:21,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:26:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-10-24 23:26:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:26:21,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:21,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:21,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:26:21,477 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:21,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:21,479 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-10-24 23:26:21,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:26:21,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296720524] [2020-10-24 23:26:21,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:26:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:26:21,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:26:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:26:21,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:26:21,710 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:26:21,710 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:26:21,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:26:21,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:26:21 BoogieIcfgContainer [2020-10-24 23:26:21,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:26:21,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:26:21,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:26:21,749 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:26:21,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:21" (3/4) ... [2020-10-24 23:26:21,753 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:26:21,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:26:21,756 INFO L168 Benchmark]: Toolchain (without parser) took 1710.20 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.0 MB in the beginning and 27.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:21,757 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 48.2 MB. Free memory was 28.1 MB in the beginning and 28.1 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:21,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.60 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.3 MB in the beginning and 34.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:21,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.60 ms. Allocated memory is still 58.7 MB. Free memory was 34.5 MB in the beginning and 32.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:21,761 INFO L168 Benchmark]: Boogie Preprocessor took 37.39 ms. Allocated memory is still 58.7 MB. Free memory was 32.5 MB in the beginning and 30.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:21,762 INFO L168 Benchmark]: RCFGBuilder took 512.48 ms. Allocated memory is still 58.7 MB. Free memory was 30.7 MB in the beginning and 38.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:21,763 INFO L168 Benchmark]: TraceAbstraction took 703.92 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 27.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:21,763 INFO L168 Benchmark]: Witness Printer took 5.47 ms. Allocated memory is still 58.7 MB. Free memory was 27.6 MB in the beginning and 27.3 MB in the end (delta: 284.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:21,769 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 48.2 MB. Free memory was 28.1 MB in the beginning and 28.1 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 365.60 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.3 MB in the beginning and 34.5 MB in the end (delta: -10.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.60 ms. Allocated memory is still 58.7 MB. Free memory was 34.5 MB in the beginning and 32.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.39 ms. Allocated memory is still 58.7 MB. Free memory was 32.5 MB in the beginning and 30.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 512.48 ms. Allocated memory is still 58.7 MB. Free memory was 30.7 MB in the beginning and 38.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 703.92 ms. Allocated memory is still 58.7 MB. Free memory was 37.5 MB in the beginning and 27.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Witness Printer took 5.47 ms. Allocated memory is still 58.7 MB. Free memory was 27.6 MB in the beginning and 27.3 MB in the end (delta: 284.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of bitwiseXor at line 33, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L118] float x = __VERIFIER_nondet_float(); [L119] float y = -0.0f; [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L120] float res = fmod_float(x, y); [L110] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L123] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1121b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 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: 57 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=43occurred 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, 22 NumberOfCodeBlocks, 22 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-a4ecdab [2020-10-24 23:26:24,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:26:24,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:26:24,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:26:24,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:26:24,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:26:24,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:26:24,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:26:24,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:26:24,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:26:24,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:26:24,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:26:24,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:26:24,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:26:24,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:26:24,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:26:24,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:26:24,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:26:24,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:26:24,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:26:24,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:26:24,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:26:24,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:26:24,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:26:24,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:26:24,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:26:24,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:26:24,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:26:24,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:26:24,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:26:24,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:26:24,522 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:26:24,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:26:24,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:26:24,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:26:24,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:26:24,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:26:24,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:26:24,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:26:24,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:26:24,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:26:24,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:26:24,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:26:24,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:26:24,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:26:24,564 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:26:24,564 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:26:24,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:26:24,565 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:26:24,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:26:24,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:26:24,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:26:24,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:26:24,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:26:24,567 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:26:24,567 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:26:24,567 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:26:24,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:26:24,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:26:24,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:26:24,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:26:24,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:26:24,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:26:24,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:26:24,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:26:24,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:26:24,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:26:24,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:26:24,571 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:26:24,571 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:26:24,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:26:24,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:26:24,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:26:24,572 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6ee66f7e92cd1fd8921d2fb3fed6eb54ee605f [2020-10-24 23:26:24,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:26:24,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:26:25,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:26:25,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:26:25,002 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:26:25,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-10-24 23:26:25,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3296e5579/efd91672e5fd48068f6aa0a5d5731018/FLAGc5159b6cf [2020-10-24 23:26:25,706 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:26:25,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2020-10-24 23:26:25,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3296e5579/efd91672e5fd48068f6aa0a5d5731018/FLAGc5159b6cf [2020-10-24 23:26:26,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3296e5579/efd91672e5fd48068f6aa0a5d5731018 [2020-10-24 23:26:26,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:26:26,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:26:26,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:26,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:26:26,119 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:26:26,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7252bf68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26, skipping insertion in model container [2020-10-24 23:26:26,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:26:26,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:26:26,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:26,382 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:26:26,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:26,491 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:26:26,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26 WrapperNode [2020-10-24 23:26:26,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:26,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:26,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:26:26,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:26:26,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:26,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:26:26,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:26:26,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:26:26,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... [2020-10-24 23:26:26,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:26:26,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:26:26,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:26:26,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:26:26,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:26:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-24 23:26:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:26:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:26:26,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:26:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:26:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:26:26,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:26:26,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:26:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:26:26,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:26:29,406 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:26:29,407 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-10-24 23:26:29,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:29 BoogieIcfgContainer [2020-10-24 23:26:29,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:26:29,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:26:29,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:26:29,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:26:29,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:26:26" (1/3) ... [2020-10-24 23:26:29,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4fa62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:29, skipping insertion in model container [2020-10-24 23:26:29,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:26" (2/3) ... [2020-10-24 23:26:29,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c4fa62e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:29, skipping insertion in model container [2020-10-24 23:26:29,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:29" (3/3) ... [2020-10-24 23:26:29,420 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2020-10-24 23:26:29,433 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:26:29,439 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:26:29,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:26:29,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:26:29,482 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:26:29,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:26:29,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:26:29,483 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:26:29,483 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:26:29,484 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:26:29,484 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:26:29,501 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-24 23:26:29,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:26:29,508 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:29,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:29,509 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:29,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:29,517 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-10-24 23:26:29,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:29,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466723789] [2020-10-24 23:26:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:26:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:30,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:26:30,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:30,034 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:30,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:30,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466723789] [2020-10-24 23:26:30,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:30,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:26:30,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982836812] [2020-10-24 23:26:30,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:26:30,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:30,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:26:30,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:26:30,100 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-10-24 23:26:30,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:30,135 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-10-24 23:26:30,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:26:30,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:26:30,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:30,156 INFO L225 Difference]: With dead ends: 83 [2020-10-24 23:26:30,156 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 23:26:30,160 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 [2020-10-24 23:26:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 23:26:30,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 23:26:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 23:26:30,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-10-24 23:26:30,216 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-10-24 23:26:30,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:30,216 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-10-24 23:26:30,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:26:30,217 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-10-24 23:26:30,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:26:30,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:30,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:30,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:26:30,435 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:30,437 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-10-24 23:26:30,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:30,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054315654] [2020-10-24 23:26:30,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:26:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:30,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 23:26:30,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:32,264 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-10-24 23:26:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:33,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:37,382 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-10-24 23:26:37,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:37,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054315654] [2020-10-24 23:26:37,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:37,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-10-24 23:26:37,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059313065] [2020-10-24 23:26:37,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 23:26:37,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:37,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 23:26:37,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-10-24 23:26:37,732 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-10-24 23:26:45,661 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 16 DAG size of output: 14 [2020-10-24 23:26:49,861 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-10-24 23:26:53,682 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-10-24 23:26:53,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:53,909 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-10-24 23:26:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:26:53,909 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-10-24 23:26:53,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:53,911 INFO L225 Difference]: With dead ends: 44 [2020-10-24 23:26:53,911 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 23:26:53,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2020-10-24 23:26:53,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 23:26:53,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-24 23:26:53,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-24 23:26:53,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-10-24 23:26:53,920 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-10-24 23:26:53,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:53,920 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-10-24 23:26:53,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 23:26:53,921 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-10-24 23:26:53,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:26:53,921 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:53,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:54,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:26:54,124 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:54,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:54,126 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-10-24 23:26:54,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:54,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [553487651] [2020-10-24 23:26:54,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:26:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:54,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:26:54,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:54,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:54,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:54,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:26:54,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [553487651] [2020-10-24 23:26:54,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:54,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:26:54,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003778706] [2020-10-24 23:26:54,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:26:54,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:54,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:26:54,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:26:54,380 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2020-10-24 23:26:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:54,534 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-10-24 23:26:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:26:54,534 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-10-24 23:26:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:54,534 INFO L225 Difference]: With dead ends: 39 [2020-10-24 23:26:54,535 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:26:54,535 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:26:54,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:26:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:26:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:26:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:26:54,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-24 23:26:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:54,536 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:26:54,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:26:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:26:54,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:26:54,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:26:54,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:26:56,317 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 14 [2020-10-24 23:26:58,158 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 23:26:58,173 INFO L274 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-10-24 23:26:58,174 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-10-24 23:26:58,174 INFO L274 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-10-24 23:26:58,174 INFO L274 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-10-24 23:26:58,174 INFO L270 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2020-10-24 23:26:58,174 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-10-24 23:26:58,175 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-24 23:26:58,175 INFO L270 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-10-24 23:26:58,175 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:26:58,175 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:26:58,175 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:26:58,175 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L274 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L274 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L277 CegarLoopResult]: At program point L128(lines 112 129) the Hoare annotation is: true [2020-10-24 23:26:58,176 INFO L274 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L274 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L274 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L274 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-10-24 23:26:58,176 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2020-10-24 23:26:58,177 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-10-24 23:26:58,177 INFO L274 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-10-24 23:26:58,177 INFO L270 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_float_~x (fp.neg (_ +zero 8 24))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2020-10-24 23:26:58,177 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-10-24 23:26:58,177 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:26:58,177 INFO L274 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-10-24 23:26:58,178 INFO L274 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-10-24 23:26:58,178 INFO L270 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-10-24 23:26:58,178 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:26:58,178 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-10-24 23:26:58,178 INFO L270 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-10-24 23:26:58,178 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-10-24 23:26:58,179 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-10-24 23:26:58,179 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:26:58,179 INFO L274 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-10-24 23:26:58,179 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-10-24 23:26:58,179 INFO L274 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-10-24 23:26:58,180 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-10-24 23:26:58,180 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-10-24 23:26:58,180 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-10-24 23:26:58,180 INFO L274 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-10-24 23:26:58,180 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-10-24 23:26:58,180 INFO L270 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-10-24 23:26:58,191 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,192 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,193 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,193 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,195 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,199 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,200 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,200 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,202 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,203 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,203 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,203 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,204 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,204 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,205 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,206 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,206 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,206 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,207 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,207 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,208 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:26:58 BoogieIcfgContainer [2020-10-24 23:26:58,210 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:26:58,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:26:58,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:26:58,211 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:26:58,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:29" (3/4) ... [2020-10-24 23:26:58,216 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:26:58,231 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:26:58,231 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-24 23:26:58,231 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:26:58,232 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:26:58,277 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:26:58,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:26:58,280 INFO L168 Benchmark]: Toolchain (without parser) took 32177.96 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 37.7 MB in the beginning and 32.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,281 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 41.9 MB. Free memory was 21.9 MB in the beginning and 21.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:58,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.38 ms. Allocated memory is still 52.4 MB. Free memory was 37.0 MB in the beginning and 36.1 MB in the end (delta: 900.0 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.26 ms. Allocated memory is still 52.4 MB. Free memory was 36.1 MB in the beginning and 34.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,283 INFO L168 Benchmark]: Boogie Preprocessor took 49.00 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 32.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,284 INFO L168 Benchmark]: RCFGBuilder took 2802.53 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 32.1 MB in the beginning and 41.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,285 INFO L168 Benchmark]: TraceAbstraction took 28799.11 ms. Allocated memory is still 62.9 MB. Free memory was 40.8 MB in the beginning and 35.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,286 INFO L168 Benchmark]: Witness Printer took 67.11 ms. Allocated memory is still 62.9 MB. Free memory was 35.2 MB in the beginning and 32.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:58,290 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 41.9 MB. Free memory was 21.9 MB in the beginning and 21.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.38 ms. Allocated memory is still 52.4 MB. Free memory was 37.0 MB in the beginning and 36.1 MB in the end (delta: 900.0 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.26 ms. Allocated memory is still 52.4 MB. Free memory was 36.1 MB in the beginning and 34.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.00 ms. Allocated memory is still 52.4 MB. Free memory was 34.2 MB in the beginning and 32.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2802.53 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 32.1 MB in the beginning and 41.1 MB in the end (delta: -9.0 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28799.11 ms. Allocated memory is still 62.9 MB. Free memory was 40.8 MB in the beginning and 35.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. * Witness Printer took 67.11 ms. Allocated memory is still 62.9 MB. Free memory was 35.2 MB in the beginning and 32.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 19]: Loop Invariant [2020-10-24 23:26:58,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,307 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,307 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,309 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-10-24 23:26:58,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,313 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,314 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,314 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~x,QUANTIFIED] [2020-10-24 23:26:58,315 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && 1bv32 == \result) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start_fmod_float_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())), ~fp.mul~FLOAT(~roundNearestTiesToEven, ULTIMATE.start_fmod_float_~x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) == \result) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-10-24 23:26:58,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:58,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:58,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 109 SDslu, 245 SDs, 0 SdLazy, 45 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 20.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 64 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 4137 SizeOfPredicates, 16 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...