./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c 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_0910a.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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b .............................................................................................................................................................................................................................................................................................................. 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_0910a.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 ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b ............................................................................................................................................................................................................................................................................................................................. 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-f470102 [2019-11-28 16:48:20,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:48:20,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:48:20,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:48:20,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:48:20,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:48:20,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:48:20,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:48:20,665 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:48:20,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:48:20,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:48:20,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:48:20,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:48:20,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:48:20,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:48:20,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:48:20,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:48:20,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:48:20,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:48:20,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:48:20,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:48:20,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:48:20,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:48:20,705 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:48:20,709 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:48:20,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:48:20,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:48:20,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:48:20,713 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:48:20,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:48:20,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:48:20,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:48:20,717 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:48:20,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:48:20,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:48:20,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:48:20,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:48:20,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:48:20,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:48:20,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:48:20,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:48:20,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:48:20,749 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:48:20,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:48:20,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:48:20,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:48:20,752 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:48:20,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:48:20,752 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:48:20,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:48:20,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:48:20,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:48:20,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:48:20,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:48:20,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:48:20,756 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:48:20,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:48:20,756 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:48:20,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:48:20,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:48:20,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:48:20,757 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:48:20,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:48:20,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:48:20,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:48:20,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:48:20,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:48:20,759 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:48:20,759 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:48:20,760 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:48:20,760 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:48:20,760 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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2019-11-28 16:48:21,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:48:21,102 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:48:21,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:48:21,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:48:21,108 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:48:21,109 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-28 16:48:21,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b405995c/4ca342896e1e45d5bbcb366bb17427f1/FLAG8d0df64aa [2019-11-28 16:48:21,629 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:48:21,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-28 16:48:21,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b405995c/4ca342896e1e45d5bbcb366bb17427f1/FLAG8d0df64aa [2019-11-28 16:48:22,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b405995c/4ca342896e1e45d5bbcb366bb17427f1 [2019-11-28 16:48:22,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:48:22,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:48:22,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:22,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:48:22,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:48:22,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59d9d2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22, skipping insertion in model container [2019-11-28 16:48:22,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:48:22,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:48:22,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:22,321 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:48:22,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:22,466 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:48:22,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22 WrapperNode [2019-11-28 16:48:22,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:22,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:22,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:48:22,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:48:22,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:22,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:48:22,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:48:22,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:48:22,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (1/1) ... [2019-11-28 16:48:22,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:48:22,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:48:22,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:48:22,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:48:22,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (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 [2019-11-28 16:48:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:48:22,632 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:48:22,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:48:22,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:48:22,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:48:22,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:48:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:48:22,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:48:23,111 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:48:23,111 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-28 16:48:23,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:23 BoogieIcfgContainer [2019-11-28 16:48:23,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:48:23,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:48:23,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:48:23,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:48:23,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:48:22" (1/3) ... [2019-11-28 16:48:23,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326ab675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:23, skipping insertion in model container [2019-11-28 16:48:23,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:22" (2/3) ... [2019-11-28 16:48:23,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326ab675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:23, skipping insertion in model container [2019-11-28 16:48:23,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:23" (3/3) ... [2019-11-28 16:48:23,121 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-11-28 16:48:23,131 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:48:23,139 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:48:23,152 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:48:23,173 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:48:23,173 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:48:23,174 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:48:23,174 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:48:23,174 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:48:23,174 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:48:23,174 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:48:23,174 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:48:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-28 16:48:23,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:48:23,196 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:23,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:23,197 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:23,202 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-11-28 16:48:23,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:48:23,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584566005] [2019-11-28 16:48:23,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:48:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:23,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:23,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584566005] [2019-11-28 16:48:23,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:23,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:48:23,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534166853] [2019-11-28 16:48:23,343 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:48:23,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:48:23,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:48:23,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:48:23,356 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-11-28 16:48:23,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:23,374 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-11-28 16:48:23,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:48:23,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-28 16:48:23,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:23,387 INFO L225 Difference]: With dead ends: 62 [2019-11-28 16:48:23,387 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 16:48:23,390 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 [2019-11-28 16:48:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 16:48:23,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 16:48:23,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 16:48:23,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-11-28 16:48:23,425 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-11-28 16:48:23,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:23,425 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-11-28 16:48:23,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:48:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-11-28 16:48:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 16:48:23,426 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:23,427 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:23,427 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:23,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:23,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-11-28 16:48:23,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:48:23,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322155386] [2019-11-28 16:48:23,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:48:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:23,620 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:48:23,621 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:48:23,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:48:23 BoogieIcfgContainer [2019-11-28 16:48:23,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:48:23,672 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:48:23,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:48:23,672 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:48:23,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:23" (3/4) ... [2019-11-28 16:48:23,678 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:48:23,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:48:23,683 INFO L168 Benchmark]: Toolchain (without parser) took 1657.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 957.7 MB in the beginning and 1.0 GB in the end (delta: -76.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:23,684 INFO L168 Benchmark]: CDTParser took 0.33 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. [2019-11-28 16:48:23,685 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:23,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.48 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. [2019-11-28 16:48:23,688 INFO L168 Benchmark]: Boogie Preprocessor took 36.79 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. [2019-11-28 16:48:23,690 INFO L168 Benchmark]: RCFGBuilder took 551.23 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:23,691 INFO L168 Benchmark]: TraceAbstraction took 557.40 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:23,692 INFO L168 Benchmark]: Witness Printer took 6.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:48:23,708 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 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 443.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -142.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.48 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. * Boogie Preprocessor took 36.79 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. * RCFGBuilder took 551.23 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.40 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 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 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: 0.4s, 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-f470102 [2019-11-28 16:48:25,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:48:25,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:48:25,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:48:25,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:48:25,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:48:25,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:48:25,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:48:25,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:48:25,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:48:25,782 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:48:25,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:48:25,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:48:25,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:48:25,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:48:25,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:48:25,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:48:25,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:48:25,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:48:25,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:48:25,802 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:48:25,803 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:48:25,804 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:48:25,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:48:25,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:48:25,813 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:48:25,813 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:48:25,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:48:25,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:48:25,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:48:25,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:48:25,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:48:25,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:48:25,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:48:25,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:48:25,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:48:25,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:48:25,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:48:25,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:48:25,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:48:25,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:48:25,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:48:25,852 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:48:25,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:48:25,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:48:25,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:48:25,858 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:48:25,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:48:25,859 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:48:25,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:48:25,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:48:25,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:48:25,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:48:25,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:48:25,862 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:48:25,862 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:48:25,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:48:25,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:48:25,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:48:25,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:48:25,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:48:25,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:48:25,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:48:25,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:48:25,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:48:25,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:48:25,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:48:25,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:48:25,866 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:48:25,867 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:48:25,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:48:25,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:48:25,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:48:25,868 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 -> ad1d3a5941ec50f48eb7bcc3f41470c0fe523f0b [2019-11-28 16:48:26,228 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:48:26,250 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:48:26,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:48:26,257 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:48:26,259 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:48:26,260 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-28 16:48:26,334 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5247b32c3/55a384f2b9a947c8bc5267e6fb69deb1/FLAGf4b0f7c20 [2019-11-28 16:48:26,812 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:48:26,813 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0910a.c [2019-11-28 16:48:26,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5247b32c3/55a384f2b9a947c8bc5267e6fb69deb1/FLAGf4b0f7c20 [2019-11-28 16:48:27,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5247b32c3/55a384f2b9a947c8bc5267e6fb69deb1 [2019-11-28 16:48:27,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:48:27,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:48:27,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:27,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:48:27,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:48:27,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,124 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5421bc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27, skipping insertion in model container [2019-11-28 16:48:27,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:48:27,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:48:27,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:27,416 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:48:27,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:27,624 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:48:27,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27 WrapperNode [2019-11-28 16:48:27,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:27,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:27,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:48:27,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:48:27,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:27,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:48:27,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:48:27,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:48:27,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (1/1) ... [2019-11-28 16:48:27,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:48:27,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:48:27,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:48:27,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:48:27,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (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 [2019-11-28 16:48:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:48:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:48:27,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:48:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:48:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:48:27,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:48:27,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:48:27,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:48:50,614 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:48:50,615 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-28 16:48:50,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:50 BoogieIcfgContainer [2019-11-28 16:48:50,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:48:50,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:48:50,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:48:50,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:48:50,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:48:27" (1/3) ... [2019-11-28 16:48:50,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499cc5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:50, skipping insertion in model container [2019-11-28 16:48:50,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:27" (2/3) ... [2019-11-28 16:48:50,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499cc5fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:50, skipping insertion in model container [2019-11-28 16:48:50,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:50" (3/3) ... [2019-11-28 16:48:50,625 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2019-11-28 16:48:50,639 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:48:50,649 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:48:50,662 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:48:50,687 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:48:50,688 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:48:50,688 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:48:50,688 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:48:50,689 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:48:50,689 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:48:50,689 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:48:50,689 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:48:50,706 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-11-28 16:48:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:48:50,713 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:50,714 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:50,715 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:50,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:50,721 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2019-11-28 16:48:50,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:48:50,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277109433] [2019-11-28 16:48:50,735 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 [2019-11-28 16:48:51,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:51,780 INFO L264 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:48:51,785 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:48:51,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:51,799 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:48:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:48:51,806 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277109433] [2019-11-28 16:48:51,807 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:51,807 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:48:51,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589880880] [2019-11-28 16:48:51,814 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:48:51,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:48:51,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:48:51,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:48:51,833 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2019-11-28 16:48:51,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:51,857 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2019-11-28 16:48:51,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:48:51,859 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-28 16:48:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:51,871 INFO L225 Difference]: With dead ends: 62 [2019-11-28 16:48:51,872 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 16:48:51,875 INFO L630 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 [2019-11-28 16:48:51,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 16:48:51,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 16:48:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 16:48:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2019-11-28 16:48:51,917 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2019-11-28 16:48:51,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:51,918 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2019-11-28 16:48:51,918 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:48:51,918 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2019-11-28 16:48:51,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-28 16:48:51,919 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:51,919 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:52,134 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:48:52,135 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:52,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:52,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2019-11-28 16:48:52,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:48:52,139 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569934750] [2019-11-28 16:48:52,139 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 [2019-11-28 16:48:53,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:54,348 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 16:48:54,348 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:48:54,550 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:48:54,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:48:54 BoogieIcfgContainer [2019-11-28 16:48:54,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:48:54,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:48:54,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:48:54,613 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:48:54,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:50" (3/4) ... [2019-11-28 16:48:54,617 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:48:54,690 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:48:54,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:48:54,693 INFO L168 Benchmark]: Toolchain (without parser) took 27576.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 960.4 MB in the beginning and 984.9 MB in the end (delta: -24.5 MB). Peak memory consumption was 70.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:54,694 INFO L168 Benchmark]: CDTParser took 0.39 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. [2019-11-28 16:48:54,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -122.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:54,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.55 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. [2019-11-28 16:48:54,696 INFO L168 Benchmark]: Boogie Preprocessor took 81.07 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:54,697 INFO L168 Benchmark]: RCFGBuilder took 22821.03 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:54,698 INFO L168 Benchmark]: TraceAbstraction took 3994.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 991.9 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:54,698 INFO L168 Benchmark]: Witness Printer took 77.95 ms. Allocated memory is still 1.1 GB. Free memory was 991.9 MB in the beginning and 984.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:54,702 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 508.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -122.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.55 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. * Boogie Preprocessor took 81.07 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 22821.03 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3994.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 991.9 MB in the end (delta: 54.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 11.5 GB. * Witness Printer took 77.95 ms. Allocated memory is still 1.1 GB. Free memory was 991.9 MB in the beginning and 984.9 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. 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: 3.8s, 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, 0.1s 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...