./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1092b.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_1092b.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 f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 ................................................................................................................................................................................................................................................................................................. 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_1092b.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 f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:26:10,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:26:10,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:26:10,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:26:10,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:26:10,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:26:10,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:26:10,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:26:10,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:26:10,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:26:10,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:26:10,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:26:10,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:26:10,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:26:10,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:26:10,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:26:10,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:26:10,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:26:10,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:26:10,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:26:10,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:26:10,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:26:10,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:26:10,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:26:10,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:26:10,385 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:26:10,385 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:26:10,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:26:10,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:26:10,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:26:10,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:26:10,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:26:10,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:26:10,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:26:10,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:26:10,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:26:10,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:26:10,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:26:10,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:26:10,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:26:10,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:26:10,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:26:10,455 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:26:10,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:26:10,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:26:10,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:26:10,459 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:26:10,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:26:10,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:26:10,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:26:10,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:26:10,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:26:10,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:26:10,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:26:10,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:26:10,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:26:10,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:26:10,462 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:26:10,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:26:10,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:26:10,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:26:10,463 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:26:10,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:26:10,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:26:10,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:26:10,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:26:10,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:26:10,464 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:26:10,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:26:10,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:26:10,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:26:10,465 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2020-10-24 23:26:10,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:26:10,938 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:26:10,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:26:10,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:26:10,944 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:26:10,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-24 23:26:11,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99f8a2c1/2441e84b396c4942916788edb52facaf/FLAG8ea9d5d85 [2020-10-24 23:26:11,688 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:26:11,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-24 23:26:11,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99f8a2c1/2441e84b396c4942916788edb52facaf/FLAG8ea9d5d85 [2020-10-24 23:26:12,062 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99f8a2c1/2441e84b396c4942916788edb52facaf [2020-10-24 23:26:12,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:26:12,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:26:12,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:12,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:26:12,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:26:12,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d624c8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12, skipping insertion in model container [2020-10-24 23:26:12,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:26:12,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:26:12,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:12,325 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:26:12,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:12,373 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:26:12,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12 WrapperNode [2020-10-24 23:26:12,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:12,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:12,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:26:12,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:26:12,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:12,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:26:12,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:26:12,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:26:12,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (1/1) ... [2020-10-24 23:26:12,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:26:12,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:26:12,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:26:12,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:26:12,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (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 23:26:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:26:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:26:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:26:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:26:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:26:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:26:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:26:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:26:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:26:12,875 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:26:12,876 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:26:12,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:12 BoogieIcfgContainer [2020-10-24 23:26:12,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:26:12,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:26:12,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:26:12,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:26:12,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:26:12" (1/3) ... [2020-10-24 23:26:12,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d35a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:12, skipping insertion in model container [2020-10-24 23:26:12,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:12" (2/3) ... [2020-10-24 23:26:12,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d35a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:12, skipping insertion in model container [2020-10-24 23:26:12,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:12" (3/3) ... [2020-10-24 23:26:12,889 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2020-10-24 23:26:12,913 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:26:12,925 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:26:12,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:26:13,005 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:26:13,005 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:26:13,005 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:26:13,006 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:26:13,006 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:26:13,006 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:26:13,006 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:26:13,006 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:26:13,020 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-24 23:26:13,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:26:13,026 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:13,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:13,027 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:13,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:13,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-24 23:26:13,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:26:13,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308382107] [2020-10-24 23:26:13,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:26:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:13,187 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 23:26:13,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308382107] [2020-10-24 23:26:13,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:13,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:26:13,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506858995] [2020-10-24 23:26:13,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:26:13,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:26:13,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:26:13,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:26:13,212 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-24 23:26:13,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:13,232 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-24 23:26:13,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:26:13,234 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:26:13,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:13,244 INFO L225 Difference]: With dead ends: 59 [2020-10-24 23:26:13,245 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 23:26:13,248 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 23:26:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 23:26:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 23:26:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:26:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-24 23:26:13,293 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-24 23:26:13,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:13,294 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-24 23:26:13,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:26:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-24 23:26:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:26:13,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:13,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:13,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:26:13,296 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:13,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:13,297 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-24 23:26:13,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:26:13,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887953615] [2020-10-24 23:26:13,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:26:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:26:13,364 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:26:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:26:13,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:26:13,480 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:26:13,480 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:26:13,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:26:13,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:26:13 BoogieIcfgContainer [2020-10-24 23:26:13,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:26:13,528 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:26:13,528 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:26:13,528 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:26:13,529 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:12" (3/4) ... [2020-10-24 23:26:13,534 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:26:13,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:26:13,540 INFO L168 Benchmark]: Toolchain (without parser) took 1464.33 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 17.8 MB in the beginning and 26.6 MB in the end (delta: -8.8 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:13,540 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 41.9 MB. Free memory is still 19.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:13,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.09 ms. Allocated memory is still 54.5 MB. Free memory was 38.9 MB in the beginning and 28.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:13,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 54.5 MB. Free memory was 28.4 MB in the beginning and 26.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:13,544 INFO L168 Benchmark]: Boogie Preprocessor took 33.46 ms. Allocated memory is still 54.5 MB. Free memory was 26.7 MB in the beginning and 25.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:13,545 INFO L168 Benchmark]: RCFGBuilder took 417.01 ms. Allocated memory is still 54.5 MB. Free memory was 25.2 MB in the beginning and 34.6 MB in the end (delta: -9.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:13,546 INFO L168 Benchmark]: TraceAbstraction took 647.19 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 26.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:13,547 INFO L168 Benchmark]: Witness Printer took 6.02 ms. Allocated memory is still 54.5 MB. Free memory was 26.9 MB in the beginning and 26.6 MB in the end (delta: 248.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:13,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 41.9 MB. Free memory is still 19.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.09 ms. Allocated memory is still 54.5 MB. Free memory was 38.9 MB in the beginning and 28.4 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 54.5 MB. Free memory was 28.4 MB in the beginning and 26.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.46 ms. Allocated memory is still 54.5 MB. Free memory was 26.7 MB in the beginning and 25.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 417.01 ms. Allocated memory is still 54.5 MB. Free memory was 25.2 MB in the beginning and 34.6 MB in the end (delta: -9.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 647.19 ms. Allocated memory is still 54.5 MB. Free memory was 34.1 MB in the beginning and 26.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.02 ms. Allocated memory is still 54.5 MB. Free memory was 26.9 MB in the beginning and 26.6 MB in the end (delta: 248.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L78] float x = 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 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=31occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:26:15,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:26:15,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:26:15,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:26:15,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:26:15,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:26:15,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:26:15,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:26:15,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:26:15,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:26:15,960 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:26:15,961 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:26:15,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:26:15,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:26:15,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:26:15,966 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:26:15,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:26:15,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:26:15,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:26:15,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:26:15,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:26:15,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:26:15,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:26:15,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:26:15,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:26:15,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:26:15,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:26:15,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:26:15,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:26:15,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:26:15,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:26:15,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:26:15,990 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:26:15,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:26:15,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:26:15,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:26:16,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:26:16,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:26:16,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:26:16,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:26:16,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:26:16,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:26:16,063 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:26:16,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:26:16,064 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:26:16,065 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:26:16,065 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:26:16,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:26:16,066 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:26:16,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:26:16,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:26:16,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:26:16,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:26:16,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:26:16,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:26:16,067 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:26:16,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:26:16,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:26:16,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:26:16,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:26:16,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:26:16,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:26:16,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:26:16,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:26:16,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:26:16,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:26:16,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:26:16,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:26:16,071 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:26:16,071 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:26:16,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:26:16,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:26:16,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:26:16,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f74c33939d6ebdd47f54a7ea6c5a26a39a444e84 [2020-10-24 23:26:16,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:26:16,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:26:16,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:26:16,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:26:16,565 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:26:16,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-24 23:26:16,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbb96f7f1/770c4120d5584277a935f4afd0c47346/FLAGe8a206fc0 [2020-10-24 23:26:17,279 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:26:17,280 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2020-10-24 23:26:17,288 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbb96f7f1/770c4120d5584277a935f4afd0c47346/FLAGe8a206fc0 [2020-10-24 23:26:17,653 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbb96f7f1/770c4120d5584277a935f4afd0c47346 [2020-10-24 23:26:17,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:26:17,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:26:17,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:17,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:26:17,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:26:17,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:17,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc79d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17, skipping insertion in model container [2020-10-24 23:26:17,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:17,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:26:17,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:26:17,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:17,941 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:26:17,971 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:26:17,995 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:26:17,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17 WrapperNode [2020-10-24 23:26:17,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:26:17,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:17,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:26:17,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:26:18,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:26:18,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:26:18,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:26:18,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:26:18,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (1/1) ... [2020-10-24 23:26:18,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:26:18,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:26:18,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:26:18,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:26:18,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (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 23:26:18,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:26:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:26:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:26:18,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:26:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:26:18,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:26:18,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:26:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:26:18,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:26:19,221 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:26:19,221 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:26:19,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:19 BoogieIcfgContainer [2020-10-24 23:26:19,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:26:19,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:26:19,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:26:19,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:26:19,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:26:17" (1/3) ... [2020-10-24 23:26:19,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec4872e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:19, skipping insertion in model container [2020-10-24 23:26:19,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:26:17" (2/3) ... [2020-10-24 23:26:19,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec4872e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:26:19, skipping insertion in model container [2020-10-24 23:26:19,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:19" (3/3) ... [2020-10-24 23:26:19,231 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2020-10-24 23:26:19,241 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:26:19,246 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:26:19,265 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:26:19,292 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:26:19,292 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:26:19,292 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:26:19,292 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:26:19,292 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:26:19,292 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:26:19,293 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:26:19,293 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:26:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-10-24 23:26:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:26:19,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:19,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:19,314 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:19,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:19,322 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-10-24 23:26:19,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:19,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049713946] [2020-10-24 23:26:19,337 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 23:26:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:19,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:26:19,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:19,499 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 23:26:19,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:19,503 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 23:26:19,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049713946] [2020-10-24 23:26:19,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:19,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:26:19,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115799358] [2020-10-24 23:26:19,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:26:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:19,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:26:19,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:26:19,528 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-10-24 23:26:19,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:19,547 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-10-24 23:26:19,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:26:19,549 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:26:19,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:19,559 INFO L225 Difference]: With dead ends: 59 [2020-10-24 23:26:19,559 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 23:26:19,562 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 23:26:19,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 23:26:19,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 23:26:19,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:26:19,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-10-24 23:26:19,597 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-10-24 23:26:19,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:19,597 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-10-24 23:26:19,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:26:19,597 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-10-24 23:26:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:26:19,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:19,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:19,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:26:19,812 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:19,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:19,814 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-10-24 23:26:19,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:19,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064790802] [2020-10-24 23:26:19,816 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 23:26:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:19,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 23:26:19,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:20,041 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 23:26:20,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:20,141 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 23:26:20,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064790802] [2020-10-24 23:26:20,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:20,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:26:20,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965070663] [2020-10-24 23:26:20,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:26:20,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:20,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:26:20,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:26:20,146 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-10-24 23:26:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:20,439 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2020-10-24 23:26:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:26:20,440 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 23:26:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:20,441 INFO L225 Difference]: With dead ends: 51 [2020-10-24 23:26:20,441 INFO L226 Difference]: Without dead ends: 34 [2020-10-24 23:26:20,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:26:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-24 23:26:20,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-10-24 23:26:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:26:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-24 23:26:20,450 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2020-10-24 23:26:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:20,450 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-24 23:26:20,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:26:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-24 23:26:20,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:26:20,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:20,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:20,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:26:20,671 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:20,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:20,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-10-24 23:26:20,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:20,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495723367] [2020-10-24 23:26:20,674 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 23:26:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:20,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 23:26:20,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:20,866 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 23:26:20,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:21,254 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 23:26:21,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495723367] [2020-10-24 23:26:21,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:21,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 23:26:21,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757152618] [2020-10-24 23:26:21,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:26:21,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:26:21,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:26:21,258 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-10-24 23:26:21,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:21,477 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-10-24 23:26:21,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:26:21,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-24 23:26:21,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:21,492 INFO L225 Difference]: With dead ends: 34 [2020-10-24 23:26:21,492 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:26:21,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:26:21,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:26:21,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:26:21,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:26:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-24 23:26:21,499 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-10-24 23:26:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:21,500 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-24 23:26:21,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:26:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-24 23:26:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:26:21,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:21,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:21,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:26:21,703 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:21,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:21,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1572128049, now seen corresponding path program 1 times [2020-10-24 23:26:21,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:21,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135771983] [2020-10-24 23:26:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:26:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:21,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:26:21,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:21,909 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 23:26:21,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:21,971 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 23:26:21,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135771983] [2020-10-24 23:26:21,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:21,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:26:21,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240105369] [2020-10-24 23:26:21,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:26:21,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:21,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:26:21,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:26:21,975 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2020-10-24 23:26:22,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:22,081 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-24 23:26:22,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:26:22,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2020-10-24 23:26:22,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:22,086 INFO L225 Difference]: With dead ends: 34 [2020-10-24 23:26:22,086 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:26:22,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:26:22,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:26:22,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:26:22,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:26:22,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-10-24 23:26:22,093 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 17 [2020-10-24 23:26:22,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:22,094 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-10-24 23:26:22,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:26:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-10-24 23:26:22,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:26:22,099 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:22,099 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:22,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:26:22,308 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:22,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:22,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1913492621, now seen corresponding path program 1 times [2020-10-24 23:26:22,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:22,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470993989] [2020-10-24 23:26:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-24 23:26:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:22,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-24 23:26:22,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:22,503 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 23:26:22,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:22,584 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 23:26:22,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470993989] [2020-10-24 23:26:22,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:22,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-24 23:26:22,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986391819] [2020-10-24 23:26:22,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 23:26:22,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:22,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 23:26:22,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:26:22,588 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 9 states. [2020-10-24 23:26:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:22,752 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2020-10-24 23:26:22,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:26:22,752 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-24 23:26:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:22,753 INFO L225 Difference]: With dead ends: 25 [2020-10-24 23:26:22,753 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:26:22,754 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:26:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:26:22,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:26:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:26:22,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-24 23:26:22,759 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 17 [2020-10-24 23:26:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:22,760 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-24 23:26:22,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 23:26:22,760 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-24 23:26:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-24 23:26:22,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:26:22,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:26:22,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 23:26:22,969 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:26:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:26:22,970 INFO L82 PathProgramCache]: Analyzing trace with hash 805440418, now seen corresponding path program 1 times [2020-10-24 23:26:22,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:26:22,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2068393117] [2020-10-24 23:26:22,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-24 23:26:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:26:23,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-24 23:26:23,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:26:23,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:26:23,264 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 23:26:23,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:26:23,581 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 23:26:23,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2068393117] [2020-10-24 23:26:23,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:26:23,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-10-24 23:26:23,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906657629] [2020-10-24 23:26:23,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-24 23:26:23,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:26:23,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-24 23:26:23,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:26:23,585 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 16 states. [2020-10-24 23:26:23,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:26:23,974 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-24 23:26:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 23:26:23,977 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 21 [2020-10-24 23:26:23,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:26:23,977 INFO L225 Difference]: With dead ends: 22 [2020-10-24 23:26:23,977 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:26:23,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-10-24 23:26:23,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:26:23,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:26:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:26:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:26:23,979 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-24 23:26:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:26:23,979 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:26:23,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-24 23:26:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:26:23,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:26:24,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 23:26:24,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:26:24,480 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-10-24 23:26:24,481 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-10-24 23:26:24,481 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) |ULTIMATE.start_main_#t~short15| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-10-24 23:26:24,481 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-10-24 23:26:24,481 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-10-24 23:26:24,481 INFO L277 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-10-24 23:26:24,482 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-10-24 23:26:24,482 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-10-24 23:26:24,482 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-10-24 23:26:24,482 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-10-24 23:26:24,482 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-10-24 23:26:24,482 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:26:24,482 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-10-24 23:26:24,483 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_ceil_float_#res|) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0))))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ bv0 32) ULTIMATE.start_ceil_float_~ix~0) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short15| (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)))) [2020-10-24 23:26:24,484 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-10-24 23:26:24,484 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-10-24 23:26:24,484 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_ceil_float_~x (_ +zero 8 24)) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-24 23:26:24,484 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-10-24 23:26:24,494 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,496 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,497 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,499 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,500 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,502 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,506 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,507 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,508 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,510 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,514 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,541 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,544 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:26:24 BoogieIcfgContainer [2020-10-24 23:26:24,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:26:24,549 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:26:24,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:26:24,549 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:26:24,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:26:19" (3/4) ... [2020-10-24 23:26:24,553 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:26:24,568 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 23:26:24,568 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:26:24,569 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:26:24,569 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:26:24,596 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-10-24 23:26:24,597 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-10-24 23:26:24,597 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) [2020-10-24 23:26:24,627 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:26:24,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:26:24,630 INFO L168 Benchmark]: Toolchain (without parser) took 6971.04 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.2 MB in the beginning and 39.2 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:24,631 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.8 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:24,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.12 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.5 MB in the beginning and 29.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:24,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.03 ms. Allocated memory is still 54.5 MB. Free memory was 29.3 MB in the beginning and 27.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:26:24,633 INFO L168 Benchmark]: Boogie Preprocessor took 82.96 ms. Allocated memory is still 54.5 MB. Free memory was 27.6 MB in the beginning and 26.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:24,633 INFO L168 Benchmark]: RCFGBuilder took 1091.80 ms. Allocated memory is still 54.5 MB. Free memory was 26.0 MB in the beginning and 34.2 MB in the end (delta: -8.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:24,634 INFO L168 Benchmark]: TraceAbstraction took 5323.47 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.9 MB in the beginning and 43.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:24,635 INFO L168 Benchmark]: Witness Printer took 79.06 ms. Allocated memory is still 67.1 MB. Free memory was 43.2 MB in the beginning and 39.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:26:24,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 23.8 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.12 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.5 MB in the beginning and 29.3 MB in the end (delta: -8.8 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.03 ms. Allocated memory is still 54.5 MB. Free memory was 29.3 MB in the beginning and 27.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.96 ms. Allocated memory is still 54.5 MB. Free memory was 27.6 MB in the beginning and 26.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1091.80 ms. Allocated memory is still 54.5 MB. Free memory was 26.0 MB in the beginning and 34.2 MB in the end (delta: -8.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5323.47 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.9 MB in the beginning and 43.2 MB in the end (delta: -9.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 16.1 GB. * Witness Printer took 79.06 ms. Allocated memory is still 67.1 MB. Free memory was 43.2 MB in the beginning and 39.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,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_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 18]: Loop Invariant [2020-10-24 23:26:24,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,650 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-10-24 23:26:24,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,653 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,653 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - InvariantResult [Line: 15]: Loop Invariant [2020-10-24 23:26:24,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,656 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,656 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,657 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-10-24 23:26:24,658 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,659 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:26:24,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,660 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-10-24 23:26:24,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:26:24,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((((~Pluszero~LONGDOUBLE() == res && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && 0bv32 == ix) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 319 SDslu, 120 SDs, 0 SdLazy, 137 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 188 HoareAnnotationTreeSize, 5 FomulaSimplifications, 195 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 22 QuantifiedInterpolants, 17102 SizeOfPredicates, 40 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...