./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_0620b.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 .......................................................................................................................................................................................................................................................................................................... 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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_0620b.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:47:06,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:47:06,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:47:06,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:47:06,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:47:06,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:47:06,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:47:06,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:47:06,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:47:06,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:47:06,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:47:06,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:47:06,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:47:06,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:47:06,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:47:06,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:47:06,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:47:06,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:47:06,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:47:06,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:47:06,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:47:06,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:47:06,536 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:47:06,538 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:47:06,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:47:06,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:47:06,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:47:06,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:47:06,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:47:06,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:47:06,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:47:06,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:47:06,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:47:06,548 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:47:06,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:47:06,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:47:06,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:47:06,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:47:06,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:47:06,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:47:06,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:47:06,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:47:06,587 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:47:06,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:47:06,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:47:06,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:47:06,595 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:47:06,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:47:06,596 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:47:06,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:47:06,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:47:06,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:47:06,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:47:06,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:47:06,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:47:06,601 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:47:06,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:47:06,601 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:47:06,602 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:47:06,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:47:06,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:47:06,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:47:06,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:47:06,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:47:06,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:47:06,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:47:06,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:47:06,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:47:06,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:47:06,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:47:06,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2019-11-27 23:47:06,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:47:06,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:47:06,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:47:06,965 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:47:06,965 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:47:06,966 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-27 23:47:07,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b856e0b7c/8aea9c216cac4a259996d837496192b0/FLAGb153ffb59 [2019-11-27 23:47:07,506 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:47:07,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-27 23:47:07,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b856e0b7c/8aea9c216cac4a259996d837496192b0/FLAGb153ffb59 [2019-11-27 23:47:07,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b856e0b7c/8aea9c216cac4a259996d837496192b0 [2019-11-27 23:47:07,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:47:07,907 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:47:07,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:47:07,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:47:07,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:47:07,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:47:07" (1/1) ... [2019-11-27 23:47:07,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c99c7e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:07, skipping insertion in model container [2019-11-27 23:47:07,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:47:07" (1/1) ... [2019-11-27 23:47:07,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:47:07,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:47:08,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:47:08,175 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:47:08,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:47:08,307 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:47:08,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08 WrapperNode [2019-11-27 23:47:08,308 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:47:08,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:47:08,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:47:08,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:47:08,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:47:08,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:47:08,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:47:08,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:47:08,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (1/1) ... [2019-11-27 23:47:08,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:47:08,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:47:08,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:47:08,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:47:08,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (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 [2019-11-27 23:47:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:47:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:47:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:47:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:47:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:47:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:47:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:47:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-27 23:47:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:47:08,935 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:47:08,935 INFO L297 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-27 23:47:08,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:47:08 BoogieIcfgContainer [2019-11-27 23:47:08,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:47:08,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:47:08,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:47:08,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:47:08,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:47:07" (1/3) ... [2019-11-27 23:47:08,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58949206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:47:08, skipping insertion in model container [2019-11-27 23:47:08,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:08" (2/3) ... [2019-11-27 23:47:08,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58949206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:47:08, skipping insertion in model container [2019-11-27 23:47:08,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:47:08" (3/3) ... [2019-11-27 23:47:08,950 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2019-11-27 23:47:08,964 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:47:08,971 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:47:08,981 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:47:09,004 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:47:09,004 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:47:09,004 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:47:09,004 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:47:09,005 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:47:09,005 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:47:09,005 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:47:09,005 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:47:09,020 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-27 23:47:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:47:09,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:09,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:09,030 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:09,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:09,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-27 23:47:09,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:47:09,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087577730] [2019-11-27 23:47:09,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:47:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:47:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:09,220 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087577730] [2019-11-27 23:47:09,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:47:09,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:47:09,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701666278] [2019-11-27 23:47:09,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:47:09,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:47:09,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:47:09,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:47:09,251 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-27 23:47:09,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:47:09,290 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-27 23:47:09,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:47:09,293 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 23:47:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:47:09,310 INFO L225 Difference]: With dead ends: 72 [2019-11-27 23:47:09,311 INFO L226 Difference]: Without dead ends: 34 [2019-11-27 23:47:09,319 INFO L630 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 [2019-11-27 23:47:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-27 23:47:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-27 23:47:09,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-27 23:47:09,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-27 23:47:09,372 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-27 23:47:09,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:47:09,373 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-27 23:47:09,373 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:47:09,373 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-27 23:47:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:47:09,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:09,375 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:09,375 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:09,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:09,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-27 23:47:09,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:47:09,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167049228] [2019-11-27 23:47:09,377 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:47:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:47:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:47:09,579 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:47:09,579 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:47:09,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:47:09 BoogieIcfgContainer [2019-11-27 23:47:09,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:47:09,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:47:09,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:47:09,652 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:47:09,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:47:08" (3/4) ... [2019-11-27 23:47:09,658 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:47:09,658 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:47:09,661 INFO L168 Benchmark]: Toolchain (without parser) took 1752.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -91.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:09,662 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:47:09,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:09,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:09,665 INFO L168 Benchmark]: Boogie Preprocessor took 44.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:09,666 INFO L168 Benchmark]: RCFGBuilder took 519.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:09,667 INFO L168 Benchmark]: TraceAbstraction took 712.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:09,668 INFO L168 Benchmark]: Witness Printer took 5.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:47:09,673 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 399.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 519.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 712.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someUnaryFLOAToperation at line 137, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = -0.0f; [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] float res = atan_float(x); [L141] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L141] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L142] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-30f4e4a [2019-11-27 23:47:11,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:47:11,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:47:11,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:47:11,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:47:11,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:47:11,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:47:11,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:47:11,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:47:11,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:47:11,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:47:11,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:47:11,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:47:11,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:47:11,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:47:11,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:47:11,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:47:11,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:47:11,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:47:11,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:47:11,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:47:11,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:47:11,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:47:11,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:47:11,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:47:11,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:47:11,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:47:11,824 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:47:11,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:47:11,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:47:11,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:47:11,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:47:11,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:47:11,829 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:47:11,830 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:47:11,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:47:11,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:47:11,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:47:11,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:47:11,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:47:11,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:47:11,836 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:47:11,856 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:47:11,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:47:11,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:47:11,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:47:11,864 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:47:11,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:47:11,864 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:47:11,867 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:47:11,867 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:47:11,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:47:11,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:47:11,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:47:11,868 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:47:11,869 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:47:11,869 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:47:11,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:47:11,869 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:47:11,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:47:11,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:47:11,872 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:47:11,872 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:47:11,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:47:11,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:47:11,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:47:11,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:47:11,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:47:11,876 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:47:11,876 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:47:11,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:47:11,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:47:11,877 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> fd8280e6c85ab06c5ea4e924d9eaa3661cb56ac8 [2019-11-27 23:47:12,233 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:47:12,249 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:47:12,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:47:12,255 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:47:12,256 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:47:12,257 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-27 23:47:12,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b45843431/840fcd63d3154ead9781f84ec412e66f/FLAG7db6f873f [2019-11-27 23:47:12,803 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:47:12,804 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0620b.c [2019-11-27 23:47:12,812 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b45843431/840fcd63d3154ead9781f84ec412e66f/FLAG7db6f873f [2019-11-27 23:47:13,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b45843431/840fcd63d3154ead9781f84ec412e66f [2019-11-27 23:47:13,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:47:13,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:47:13,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:47:13,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:47:13,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:47:13,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3788b2a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13, skipping insertion in model container [2019-11-27 23:47:13,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:47:13,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:47:13,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:47:13,483 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:47:13,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:47:13,648 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:47:13,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13 WrapperNode [2019-11-27 23:47:13,650 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:47:13,651 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:47:13,651 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:47:13,651 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:47:13,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:47:13,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:47:13,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:47:13,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:47:13,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (1/1) ... [2019-11-27 23:47:13,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:47:13,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:47:13,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:47:13,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:47:13,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (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 [2019-11-27 23:47:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-27 23:47:13,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:47:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-27 23:47:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:47:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:47:13,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:47:13,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-27 23:47:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:47:13,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:47:24,121 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:47:24,122 INFO L297 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-27 23:47:24,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:47:24 BoogieIcfgContainer [2019-11-27 23:47:24,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:47:24,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:47:24,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:47:24,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:47:24,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:47:13" (1/3) ... [2019-11-27 23:47:24,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d94ee61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:47:24, skipping insertion in model container [2019-11-27 23:47:24,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:47:13" (2/3) ... [2019-11-27 23:47:24,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d94ee61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:47:24, skipping insertion in model container [2019-11-27 23:47:24,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:47:24" (3/3) ... [2019-11-27 23:47:24,132 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620b.c [2019-11-27 23:47:24,141 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:47:24,147 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:47:24,157 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:47:24,180 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:47:24,181 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:47:24,181 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:47:24,181 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:47:24,182 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:47:24,183 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:47:24,183 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:47:24,183 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:47:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-27 23:47:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:47:24,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:24,214 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:24,215 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:24,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:24,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-27 23:47:24,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:47:24,231 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043376051] [2019-11-27 23:47:24,232 INFO L94 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 [2019-11-27 23:47:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:47:25,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:47:25,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:47:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:25,229 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:47:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:25,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043376051] [2019-11-27 23:47:25,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:47:25,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:47:25,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030251167] [2019-11-27 23:47:25,243 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:47:25,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:47:25,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:47:25,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:47:25,262 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-27 23:47:25,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:47:25,286 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-27 23:47:25,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:47:25,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-27 23:47:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:47:25,301 INFO L225 Difference]: With dead ends: 72 [2019-11-27 23:47:25,301 INFO L226 Difference]: Without dead ends: 34 [2019-11-27 23:47:25,305 INFO L630 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 [2019-11-27 23:47:25,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-27 23:47:25,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-27 23:47:25,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-27 23:47:25,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-27 23:47:25,350 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-27 23:47:25,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:47:25,351 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-27 23:47:25,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:47:25,352 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-27 23:47:25,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:47:25,352 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:25,353 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:25,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:47:25,568 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:25,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:25,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-27 23:47:25,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:47:25,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132554772] [2019-11-27 23:47:25,571 INFO L94 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 [2019-11-27 23:47:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:47:26,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:47:26,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:47:26,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:26,680 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:47:26,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:26,754 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132554772] [2019-11-27 23:47:26,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:47:26,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-27 23:47:26,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073218718] [2019-11-27 23:47:26,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:47:26,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:47:26,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:47:26,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:47:26,759 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-27 23:47:31,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:47:31,092 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-11-27 23:47:31,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:47:31,093 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-27 23:47:31,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:47:31,094 INFO L225 Difference]: With dead ends: 57 [2019-11-27 23:47:31,094 INFO L226 Difference]: Without dead ends: 32 [2019-11-27 23:47:31,096 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:47:31,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-27 23:47:31,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-27 23:47:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-27 23:47:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-27 23:47:31,101 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2019-11-27 23:47:31,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:47:31,102 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-27 23:47:31,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:47:31,103 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-27 23:47:31,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-27 23:47:31,103 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:31,104 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:31,318 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:47:31,319 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:31,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:31,320 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2019-11-27 23:47:31,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:47:31,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101692129] [2019-11-27 23:47:31,322 INFO L94 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 [2019-11-27 23:47:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:47:32,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-27 23:47:32,333 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:47:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:32,384 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:47:32,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:47:32,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:32,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101692129] [2019-11-27 23:47:32,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:47:32,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-27 23:47:32,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135715451] [2019-11-27 23:47:32,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-27 23:47:32,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:47:32,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-27 23:47:32,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-27 23:47:32,447 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-27 23:47:36,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:47:36,583 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-27 23:47:36,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-27 23:47:36,584 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-27 23:47:36,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:47:36,585 INFO L225 Difference]: With dead ends: 35 [2019-11-27 23:47:36,585 INFO L226 Difference]: Without dead ends: 32 [2019-11-27 23:47:36,586 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-27 23:47:36,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-27 23:47:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-27 23:47:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-27 23:47:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-27 23:47:36,594 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-27 23:47:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:47:36,595 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-27 23:47:36,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-27 23:47:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-27 23:47:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 23:47:36,598 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:36,598 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:36,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:47:36,800 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:36,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2019-11-27 23:47:36,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:47:36,803 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727347637] [2019-11-27 23:47:36,803 INFO L94 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 [2019-11-27 23:47:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:47:38,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-27 23:47:38,778 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:47:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:38,847 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:47:39,355 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-27 23:47:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:39,503 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727347637] [2019-11-27 23:47:39,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:47:39,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-27 23:47:39,504 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396772720] [2019-11-27 23:47:39,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-27 23:47:39,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:47:39,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-27 23:47:39,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:47:39,505 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-27 23:47:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:47:39,702 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-27 23:47:39,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-27 23:47:39,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-27 23:47:39,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:47:39,708 INFO L225 Difference]: With dead ends: 32 [2019-11-27 23:47:39,708 INFO L226 Difference]: Without dead ends: 18 [2019-11-27 23:47:39,709 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-27 23:47:39,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-27 23:47:39,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-27 23:47:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-27 23:47:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-27 23:47:39,713 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-27 23:47:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:47:39,713 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-27 23:47:39,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-27 23:47:39,714 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-27 23:47:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-27 23:47:39,714 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:47:39,714 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:47:39,915 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-27 23:47:39,916 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:47:39,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:47:39,916 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2019-11-27 23:47:39,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:47:39,918 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442519307] [2019-11-27 23:47:39,918 INFO L94 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 [2019-11-27 23:47:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:47:40,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-27 23:47:40,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:47:40,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:47:41,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:41,017 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:47:41,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 23:47:41,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:47:41,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442519307] [2019-11-27 23:47:41,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:47:41,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-27 23:47:41,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837282539] [2019-11-27 23:47:41,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-27 23:47:41,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:47:41,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-27 23:47:41,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-27 23:47:41,259 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-27 23:47:41,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:47:41,484 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-27 23:47:41,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-27 23:47:41,485 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-27 23:47:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:47:41,486 INFO L225 Difference]: With dead ends: 18 [2019-11-27 23:47:41,486 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:47:41,487 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-27 23:47:41,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:47:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:47:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:47:41,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:47:41,488 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-27 23:47:41,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:47:41,488 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:47:41,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-27 23:47:41,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:47:41,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:47:41,697 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-27 23:47:41,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:47:41,932 INFO L242 CegarLoopResult]: At program point L126(lines 117 127) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x .cse0) |ULTIMATE.start_main_#t~short29| (= ULTIMATE.start_main_~res~0 .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-27 23:47:41,932 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:47:41,932 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:47:41,932 INFO L246 CegarLoopResult]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2019-11-27 23:47:41,932 INFO L242 CegarLoopResult]: At program point L120-2(lines 120 124) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x .cse0) |ULTIMATE.start_main_#t~short29| (= ULTIMATE.start_main_~res~0 .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= ULTIMATE.start___signbit_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-27 23:47:41,933 INFO L246 CegarLoopResult]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-27 23:47:41,933 INFO L246 CegarLoopResult]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2019-11-27 23:47:41,933 INFO L246 CegarLoopResult]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-27 23:47:41,933 INFO L246 CegarLoopResult]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-27 23:47:41,933 INFO L246 CegarLoopResult]: For program point L79(lines 79 95) no Hoare annotation was computed. [2019-11-27 23:47:41,933 INFO L246 CegarLoopResult]: For program point L71(lines 71 96) no Hoare annotation was computed. [2019-11-27 23:47:41,934 INFO L246 CegarLoopResult]: For program point L63(lines 63 70) no Hoare annotation was computed. [2019-11-27 23:47:41,934 INFO L246 CegarLoopResult]: For program point L88(lines 88 94) no Hoare annotation was computed. [2019-11-27 23:47:41,934 INFO L246 CegarLoopResult]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2019-11-27 23:47:41,934 INFO L249 CegarLoopResult]: At program point L146(lines 129 147) the Hoare annotation is: true [2019-11-27 23:47:41,934 INFO L246 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2019-11-27 23:47:41,934 INFO L246 CegarLoopResult]: For program point L80(lines 80 86) no Hoare annotation was computed. [2019-11-27 23:47:41,935 INFO L246 CegarLoopResult]: For program point L113-2(line 113) no Hoare annotation was computed. [2019-11-27 23:47:41,935 INFO L242 CegarLoopResult]: At program point L113-3(lines 53 115) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start_atan_float_#res| .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x .cse0) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-27 23:47:41,935 INFO L246 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2019-11-27 23:47:41,935 INFO L246 CegarLoopResult]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2019-11-27 23:47:41,935 INFO L246 CegarLoopResult]: For program point L64(lines 64 65) no Hoare annotation was computed. [2019-11-27 23:47:41,935 INFO L246 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2019-11-27 23:47:41,936 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:47:41,936 INFO L246 CegarLoopResult]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-11-27 23:47:41,936 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2019-11-27 23:47:41,936 INFO L242 CegarLoopResult]: At program point L57-2(lines 57 61) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ULTIMATE.start_atan_float_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)) ~huge_atan~0) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:47:41,936 INFO L246 CegarLoopResult]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-11-27 23:47:41,937 INFO L246 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-27 23:47:41,937 INFO L242 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2019-11-27 23:47:41,937 INFO L246 CegarLoopResult]: For program point L66(lines 66 69) no Hoare annotation was computed. [2019-11-27 23:47:41,937 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:47:41,937 INFO L246 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2019-11-27 23:47:41,937 INFO L246 CegarLoopResult]: For program point L141-2(lines 141 144) no Hoare annotation was computed. [2019-11-27 23:47:41,937 INFO L242 CegarLoopResult]: At program point L26(lines 14 27) the Hoare annotation is: false [2019-11-27 23:47:41,937 INFO L246 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-27 23:47:41,938 INFO L246 CegarLoopResult]: For program point L109(lines 109 114) no Hoare annotation was computed. [2019-11-27 23:47:41,951 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,954 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,955 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,957 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,958 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,959 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,966 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,966 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,967 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,968 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:41,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,968 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,969 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:41,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:47:41 BoogieIcfgContainer [2019-11-27 23:47:41,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:47:41,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:47:41,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:47:41,972 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:47:41,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:47:24" (3/4) ... [2019-11-27 23:47:41,979 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:47:41,993 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2019-11-27 23:47:41,993 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-27 23:47:41,994 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:47:42,024 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:47:42,025 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:47:42,026 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:47:42,069 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:47:42,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:47:42,071 INFO L168 Benchmark]: Toolchain (without parser) took 28881.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 959.0 MB in the beginning and 832.1 MB in the end (delta: 126.9 MB). Peak memory consumption was 237.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:42,071 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:47:42,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:42,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:42,073 INFO L168 Benchmark]: Boogie Preprocessor took 48.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:47:42,073 INFO L168 Benchmark]: RCFGBuilder took 10340.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:42,074 INFO L168 Benchmark]: TraceAbstraction took 17846.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 838.9 MB in the end (delta: 212.8 MB). Peak memory consumption was 212.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:42,074 INFO L168 Benchmark]: Witness Printer took 97.30 ms. Allocated memory is still 1.1 GB. Free memory was 838.9 MB in the beginning and 832.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:47:42,076 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 459.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 959.0 MB in the beginning and 1.1 GB in the end (delta: -139.1 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10340.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17846.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 838.9 MB in the end (delta: 212.8 MB). Peak memory consumption was 212.8 MB. Max. memory is 11.5 GB. * Witness Printer took 97.30 ms. Allocated memory is still 1.1 GB. Free memory was 838.9 MB in the beginning and 832.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2019-11-27 23:47:42,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,083 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,084 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,085 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,085 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 57]: Loop Invariant [2019-11-27 23:47:42,086 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,086 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,087 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,088 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant [2019-11-27 23:47:42,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,089 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,091 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 117]: Loop Invariant [2019-11-27 23:47:42,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:47:42,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:47:42,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((\result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) == huge_atan) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 17.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 111 SDtfs, 161 SDslu, 202 SDs, 0 SdLazy, 85 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 136 HoareAnnotationTreeSize, 7 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.0s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 9709 SizeOfPredicates, 28 NumberOfNonLiveVariables, 453 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...