./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c1f4b5c4 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/double_req_bl_0910b.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 8176e7e5e6b2069fd1594d8f16b741459bb13cc9 .............................................................................................................................................................................................................................................................................................................. 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/double_req_bl_0910b.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 8176e7e5e6b2069fd1594d8f16b741459bb13cc9 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:52:58,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:52:58,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:52:58,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:52:58,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:52:58,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:52:58,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:52:58,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:52:58,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:52:58,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:52:58,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:52:58,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:52:58,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:52:58,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:52:58,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:52:58,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:52:58,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:52:58,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:52:58,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:52:58,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:52:58,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:52:58,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:52:58,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:52:58,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:52:58,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:52:58,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:52:58,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:52:58,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:52:58,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:52:58,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:52:58,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:52:58,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:52:58,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:52:58,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:52:58,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:52:58,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:52:58,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:52:58,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:52:58,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:52:58,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:52:58,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:52:58,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:52:58,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:52:58,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:52:58,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:52:58,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:52:58,366 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:52:58,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:52:58,366 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:52:58,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:52:58,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:52:58,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:52:58,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:52:58,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:52:58,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:52:58,368 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:52:58,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:52:58,368 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:52:58,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:52:58,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:52:58,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:52:58,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:52:58,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:52:58,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:52:58,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:52:58,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:52:58,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:52:58,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:52:58,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:52:58,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:52:58,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:52:58,372 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 -> 8176e7e5e6b2069fd1594d8f16b741459bb13cc9 [2019-12-08 15:52:58,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:52:58,684 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:52:58,687 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:52:58,689 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:52:58,689 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:52:58,690 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2019-12-08 15:52:58,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14daaacb1/deb9eb9788ac4c7eaf122bc80ea457e3/FLAG112f3c082 [2019-12-08 15:52:59,198 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:52:59,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2019-12-08 15:52:59,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14daaacb1/deb9eb9788ac4c7eaf122bc80ea457e3/FLAG112f3c082 [2019-12-08 15:52:59,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14daaacb1/deb9eb9788ac4c7eaf122bc80ea457e3 [2019-12-08 15:52:59,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:52:59,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:52:59,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:52:59,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:52:59,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:52:59,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a428d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59, skipping insertion in model container [2019-12-08 15:52:59,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:52:59,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:52:59,774 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:52:59,778 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:52:59,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:52:59,898 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:52:59,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59 WrapperNode [2019-12-08 15:52:59,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:52:59,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:52:59,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:52:59,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:52:59,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:52:59,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:52:59,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:52:59,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:52:59,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:52:59,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:53:00,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:53:00,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (1/1) ... [2019-12-08 15:53:00,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:53:00,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:53:00,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:53:00,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:53:00,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (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 [2019-12-08 15:53:00,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:53:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-08 15:53:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-08 15:53:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-08 15:53:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:53:00,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:53:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-08 15:53:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:53:00,540 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:53:00,540 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-08 15:53:00,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:53:00 BoogieIcfgContainer [2019-12-08 15:53:00,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:53:00,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:53:00,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:53:00,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:53:00,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:52:59" (1/3) ... [2019-12-08 15:53:00,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f36ae4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:53:00, skipping insertion in model container [2019-12-08 15:53:00,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:52:59" (2/3) ... [2019-12-08 15:53:00,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f36ae4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:53:00, skipping insertion in model container [2019-12-08 15:53:00,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:53:00" (3/3) ... [2019-12-08 15:53:00,550 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2019-12-08 15:53:00,561 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:53:00,566 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:53:00,578 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:53:00,598 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:53:00,598 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:53:00,598 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:53:00,598 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:53:00,598 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:53:00,599 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:53:00,599 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:53:00,599 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:53:00,616 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-08 15:53:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:53:00,623 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:53:00,624 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:53:00,624 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:53:00,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:53:00,629 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-12-08 15:53:00,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:53:00,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370922483] [2019-12-08 15:53:00,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:53:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:53:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:53:00,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370922483] [2019-12-08 15:53:00,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:53:00,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-08 15:53:00,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347304180] [2019-12-08 15:53:00,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:53:00,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:53:00,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:53:00,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:53:00,793 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-08 15:53:00,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:53:00,819 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-12-08 15:53:00,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:53:00,821 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-08 15:53:00,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:53:00,835 INFO L225 Difference]: With dead ends: 62 [2019-12-08 15:53:00,835 INFO L226 Difference]: Without dead ends: 29 [2019-12-08 15:53:00,839 INFO L631 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 [2019-12-08 15:53:00,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-08 15:53:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-08 15:53:00,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-08 15:53:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-12-08 15:53:00,892 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-12-08 15:53:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:53:00,892 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-12-08 15:53:00,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:53:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-12-08 15:53:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-08 15:53:00,894 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:53:00,894 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:53:00,895 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:53:00,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:53:00,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-12-08 15:53:00,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:53:00,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27479516] [2019-12-08 15:53:00,897 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:53:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:53:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:53:01,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:53:01,227 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:53:01,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:53:01 BoogieIcfgContainer [2019-12-08 15:53:01,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:53:01,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:53:01,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:53:01,288 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:53:01,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:53:00" (3/4) ... [2019-12-08 15:53:01,293 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:53:01,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:53:01,299 INFO L168 Benchmark]: Toolchain (without parser) took 1799.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -131.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:01,300 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:53:01,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:01,302 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.54 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. [2019-12-08 15:53:01,303 INFO L168 Benchmark]: Boogie Preprocessor took 49.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:01,304 INFO L168 Benchmark]: RCFGBuilder took 529.08 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:01,305 INFO L168 Benchmark]: TraceAbstraction took 744.20 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:01,305 INFO L168 Benchmark]: Witness Printer took 6.38 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. [2019-12-08 15:53:01,310 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 401.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.54 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. * Boogie Preprocessor took 49.02 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 529.08 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 744.20 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: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.38 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: 137]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 27, overapproximation of someUnaryDOUBLEoperation at line 132, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L132] double x = -0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 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=32occurred 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, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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 0.1.25-c1f4b5c [2019-12-08 15:53:03,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:53:03,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:53:03,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:53:03,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:53:03,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:53:03,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:53:03,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:53:03,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:53:03,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:53:03,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:53:03,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:53:03,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:53:03,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:53:03,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:53:03,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:53:03,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:53:03,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:53:03,359 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:53:03,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:53:03,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:53:03,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:53:03,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:53:03,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:53:03,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-08 15:53:03,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:53:03,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:53:03,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:53:03,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:53:03,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:53:03,391 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:53:03,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:53:03,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:53:03,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:53:03,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:53:03,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:53:03,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:53:03,438 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:53:03,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:53:03,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:53:03,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:53:03,445 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:53:03,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:53:03,446 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:53:03,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:53:03,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:53:03,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:53:03,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:53:03,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:53:03,449 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:53:03,449 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:53:03,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:53:03,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:53:03,450 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:53:03,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:53:03,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:53:03,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:53:03,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:53:03,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:53:03,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:53:03,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:53:03,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:53:03,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:53:03,453 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:53:03,453 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:53:03,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:53:03,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:53:03,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:53:03,454 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 -> 8176e7e5e6b2069fd1594d8f16b741459bb13cc9 [2019-12-08 15:53:03,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:53:03,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:53:03,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:53:03,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:53:03,797 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:53:03,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2019-12-08 15:53:03,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1ca2e79c/3bfcc176a9f94d3f8bea4e223ac4f73e/FLAG32955b6fa [2019-12-08 15:53:04,380 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:53:04,382 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2019-12-08 15:53:04,393 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1ca2e79c/3bfcc176a9f94d3f8bea4e223ac4f73e/FLAG32955b6fa [2019-12-08 15:53:04,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1ca2e79c/3bfcc176a9f94d3f8bea4e223ac4f73e [2019-12-08 15:53:04,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:53:04,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:53:04,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:53:04,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:53:04,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:53:04,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:53:04" (1/1) ... [2019-12-08 15:53:04,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3258a71b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:04, skipping insertion in model container [2019-12-08 15:53:04,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:53:04" (1/1) ... [2019-12-08 15:53:04,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:53:04,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:53:04,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:53:04,959 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:53:05,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:53:05,109 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:53:05,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05 WrapperNode [2019-12-08 15:53:05,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:53:05,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:53:05,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:53:05,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:53:05,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:53:05,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:53:05,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:53:05,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:53:05,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (1/1) ... [2019-12-08 15:53:05,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:53:05,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:53:05,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:53:05,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:53:05,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (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 [2019-12-08 15:53:05,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-08 15:53:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-08 15:53:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:53:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-08 15:53:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:53:05,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:53:05,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-08 15:53:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:53:29,626 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:53:29,626 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-12-08 15:53:29,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:53:29 BoogieIcfgContainer [2019-12-08 15:53:29,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:53:29,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:53:29,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:53:29,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:53:29,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:53:04" (1/3) ... [2019-12-08 15:53:29,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f531755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:53:29, skipping insertion in model container [2019-12-08 15:53:29,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:53:05" (2/3) ... [2019-12-08 15:53:29,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f531755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:53:29, skipping insertion in model container [2019-12-08 15:53:29,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:53:29" (3/3) ... [2019-12-08 15:53:29,641 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2019-12-08 15:53:29,649 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:53:29,656 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:53:29,665 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:53:29,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:53:29,686 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:53:29,686 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:53:29,686 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:53:29,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:53:29,687 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:53:29,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:53:29,687 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:53:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-12-08 15:53:29,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-08 15:53:29,707 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:53:29,708 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:53:29,709 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:53:29,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:53:29,714 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-12-08 15:53:29,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:53:29,726 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [935391042] [2019-12-08 15:53:29,726 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 [2019-12-08 15:53:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:53:30,661 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-08 15:53:30,666 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:53:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:53:30,679 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:53:30,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:53:30,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [935391042] [2019-12-08 15:53:30,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:53:30,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-08 15:53:30,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634101988] [2019-12-08 15:53:30,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:53:30,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:53:30,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:53:30,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:53:30,704 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-12-08 15:53:30,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:53:30,722 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-12-08 15:53:30,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:53:30,724 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-08 15:53:30,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:53:30,736 INFO L225 Difference]: With dead ends: 62 [2019-12-08 15:53:30,737 INFO L226 Difference]: Without dead ends: 29 [2019-12-08 15:53:30,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:53:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-12-08 15:53:30,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-12-08 15:53:30,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-12-08 15:53:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-12-08 15:53:30,783 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-12-08 15:53:30,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:53:30,784 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-12-08 15:53:30,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:53:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-12-08 15:53:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-08 15:53:30,785 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:53:30,785 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:53:30,998 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:53:30,998 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:53:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:53:30,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-12-08 15:53:31,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:53:31,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955678406] [2019-12-08 15:53:31,001 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 [2019-12-08 15:53:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:53:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:53:33,273 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-08 15:53:33,274 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:53:33,476 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:53:33,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:53:33 BoogieIcfgContainer [2019-12-08 15:53:33,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:53:33,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:53:33,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:53:33,536 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:53:33,537 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:53:29" (3/4) ... [2019-12-08 15:53:33,541 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-08 15:53:33,650 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:53:33,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:53:33,656 INFO L168 Benchmark]: Toolchain (without parser) took 28958.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 955.0 MB in the beginning and 989.8 MB in the end (delta: -34.8 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:33,657 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:53:33,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:33,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.39 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:33,668 INFO L168 Benchmark]: Boogie Preprocessor took 43.57 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:33,668 INFO L168 Benchmark]: RCFGBuilder took 24417.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:33,669 INFO L168 Benchmark]: TraceAbstraction took 3906.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 989.8 MB in the end (delta: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:53:33,669 INFO L168 Benchmark]: Witness Printer took 115.26 ms. Allocated memory is still 1.1 GB. Free memory is still 989.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:53:33,673 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 412.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -129.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.39 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.57 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 24417.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3906.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 989.8 MB in the end (delta: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * Witness Printer took 115.26 ms. Allocated memory is still 1.1 GB. Free memory is still 989.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 137]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L132] double x = -0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L133] double res = __ieee754_log(x); [L19] __int32_t hx, lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lx) = ew_u.parts.lsw [L26] hx &= 0x7fffffff [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L136] COND TRUE !isinf_double(res) [L137] __VERIFIER_error() VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 1.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 35 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...