./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0920a.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_0920a.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 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b .................................................................................................................................................................................................................................................................................................................................................... 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_0920a.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 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b ........................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:48:28,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:48:28,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:48:28,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:48:28,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:48:28,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:48:28,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:48:29,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:48:29,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:48:29,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:48:29,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:48:29,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:48:29,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:48:29,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:48:29,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:48:29,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:48:29,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:48:29,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:48:29,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:48:29,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:48:29,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:48:29,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:48:29,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:48:29,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:48:29,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:48:29,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:48:29,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:48:29,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:48:29,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:48:29,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:48:29,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:48:29,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:48:29,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:48:29,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:48:29,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:48:29,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:48:29,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:48:29,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:48:29,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:48:29,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:48:29,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:48:29,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:48:29,110 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:48:29,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:48:29,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:48:29,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:48:29,115 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:48:29,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:48:29,117 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:48:29,117 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:48:29,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:48:29,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:48:29,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:48:29,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:48:29,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:48:29,120 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:48:29,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:48:29,121 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:48:29,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:48:29,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:48:29,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:48:29,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:48:29,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:48:29,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:48:29,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:48:29,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:48:29,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:48:29,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:48:29,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:48:29,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:48:29,127 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:48:29,127 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 -> 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b [2019-11-28 16:48:29,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:48:29,489 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:48:29,493 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:48:29,495 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:48:29,496 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:48:29,496 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-11-28 16:48:29,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e1eb9ae/9db0fc3e72f34be4a13fd4b3234b013a/FLAG387aa5279 [2019-11-28 16:48:30,018 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:48:30,019 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-11-28 16:48:30,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e1eb9ae/9db0fc3e72f34be4a13fd4b3234b013a/FLAG387aa5279 [2019-11-28 16:48:30,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41e1eb9ae/9db0fc3e72f34be4a13fd4b3234b013a [2019-11-28 16:48:30,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:48:30,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:48:30,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:30,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:48:30,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:48:30,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a18cc39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30, skipping insertion in model container [2019-11-28 16:48:30,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:48:30,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:48:30,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:30,703 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:48:30,811 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:30,837 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:48:30,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30 WrapperNode [2019-11-28 16:48:30,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:30,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:30,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:48:30,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:48:30,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:30,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:48:30,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:48:30,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:48:30,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (1/1) ... [2019-11-28 16:48:30,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:48:30,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:48:30,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:48:30,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:48:30,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (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 16:48:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:48:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-28 16:48:31,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 16:48:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-28 16:48:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:48:31,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:48:31,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 16:48:31,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:48:31,493 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:48:31,493 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-28 16:48:31,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:31 BoogieIcfgContainer [2019-11-28 16:48:31,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:48:31,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:48:31,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:48:31,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:48:31,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:48:30" (1/3) ... [2019-11-28 16:48:31,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464bb877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:31, skipping insertion in model container [2019-11-28 16:48:31,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:30" (2/3) ... [2019-11-28 16:48:31,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@464bb877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:48:31, skipping insertion in model container [2019-11-28 16:48:31,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:31" (3/3) ... [2019-11-28 16:48:31,505 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2019-11-28 16:48:31,523 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:48:31,529 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:48:31,538 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:48:31,559 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:48:31,559 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:48:31,559 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:48:31,560 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:48:31,560 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:48:31,560 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:48:31,560 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:48:31,560 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:48:31,573 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-28 16:48:31,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:48:31,580 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:31,580 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:31,581 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:31,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:31,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2019-11-28 16:48:31,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:48:31,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545662505] [2019-11-28 16:48:31,595 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:48:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:31,719 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 16:48:31,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545662505] [2019-11-28 16:48:31,721 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:31,721 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 16:48:31,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022783166] [2019-11-28 16:48:31,727 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:48:31,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:48:31,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:48:31,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:48:31,745 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-28 16:48:31,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:31,765 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2019-11-28 16:48:31,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:48:31,766 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-28 16:48:31,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:31,778 INFO L225 Difference]: With dead ends: 69 [2019-11-28 16:48:31,778 INFO L226 Difference]: Without dead ends: 32 [2019-11-28 16:48:31,782 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 16:48:31,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-28 16:48:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-28 16:48:31,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-28 16:48:31,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-11-28 16:48:31,818 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2019-11-28 16:48:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:31,819 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-11-28 16:48:31,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:48:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-11-28 16:48:31,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:48:31,821 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:31,822 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:31,822 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:31,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2019-11-28 16:48:31,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:48:31,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561358909] [2019-11-28 16:48:31,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:48:31,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:48:31,889 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 16:48:31,889 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561358909] [2019-11-28 16:48:31,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:48:31,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 16:48:31,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586750697] [2019-11-28 16:48:31,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:48:31,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 16:48:31,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:48:31,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:48:31,893 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2019-11-28 16:48:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:48:31,928 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2019-11-28 16:48:31,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:48:31,930 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-28 16:48:31,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:48:31,931 INFO L225 Difference]: With dead ends: 57 [2019-11-28 16:48:31,931 INFO L226 Difference]: Without dead ends: 32 [2019-11-28 16:48:31,932 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:48:31,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-28 16:48:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-28 16:48:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-28 16:48:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2019-11-28 16:48:31,938 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2019-11-28 16:48:31,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:48:31,939 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-11-28 16:48:31,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:48:31,939 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2019-11-28 16:48:31,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 16:48:31,940 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:48:31,940 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:48:31,941 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:48:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:48:31,941 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2019-11-28 16:48:31,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:48:31,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195855275] [2019-11-28 16:48:31,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:48:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:48:32,156 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:48:32,157 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:48:32,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:48:32 BoogieIcfgContainer [2019-11-28 16:48:32,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:48:32,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:48:32,233 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:48:32,234 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:48:32,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:48:31" (3/4) ... [2019-11-28 16:48:32,244 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:48:32,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:48:32,248 INFO L168 Benchmark]: Toolchain (without parser) took 1876.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -85.8 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:32,250 INFO L168 Benchmark]: CDTParser took 0.35 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 16:48:32,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:32,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.06 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 16:48:32,255 INFO L168 Benchmark]: Boogie Preprocessor took 41.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:32,256 INFO L168 Benchmark]: RCFGBuilder took 556.42 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:32,258 INFO L168 Benchmark]: TraceAbstraction took 736.71 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:48:32,260 INFO L168 Benchmark]: Witness Printer took 11.45 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 16:48:32,274 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 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 467.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.06 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 41.07 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 556.42 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: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 736.71 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 11.45 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: 154]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 137, overapproximation of bitwiseAnd at line 133, overapproximation of someBinaryArithmeticDOUBLEoperation at line 72. 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] [L146] double x = __VERIFIER_nondet_double(); [L148] EXPR x < 0 && isfinite_double(x) [L127] __int32_t hx; 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] [L129] ieee_double_shape_type gh_u; [L130] gh_u.value = (x) [L131] EXPR gh_u.parts.msw [L131] (hx) = gh_u.parts.msw [L133] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 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] [L148] EXPR x < 0 && isfinite_double(x) 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] [L148] COND TRUE (x < 0 && isfinite_double(x)) [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 FALSE !(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] [L71] COND TRUE hx >= 0x7ff00000 [L72] return x + x; 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] [L150] double res = __ieee754_log(x); [L137] return x != x; 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] [L153] COND TRUE !isnan_double(res) [L154] __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, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 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 16:48:34,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:48:34,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:48:34,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:48:34,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:48:34,486 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:48:34,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:48:34,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:48:34,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:48:34,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:48:34,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:48:34,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:48:34,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:48:34,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:48:34,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:48:34,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:48:34,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:48:34,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:48:34,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:48:34,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:48:34,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:48:34,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:48:34,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:48:34,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:48:34,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:48:34,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:48:34,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:48:34,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:48:34,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:48:34,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:48:34,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:48:34,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:48:34,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:48:34,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:48:34,523 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:48:34,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:48:34,524 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:48:34,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:48:34,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:48:34,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:48:34,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:48:34,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:48:34,543 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:48:34,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:48:34,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:48:34,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:48:34,546 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:48:34,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:48:34,547 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:48:34,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:48:34,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:48:34,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:48:34,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:48:34,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:48:34,548 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:48:34,548 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:48:34,549 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:48:34,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:48:34,549 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:48:34,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:48:34,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:48:34,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:48:34,550 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:48:34,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:48:34,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:48:34,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:48:34,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:48:34,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:48:34,552 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:48:34,552 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:48:34,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:48:34,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:48:34,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:48:34,553 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 -> 9a30c63b7ba6607790fb9b2ddb8b19a74f00f07b [2019-11-28 16:48:34,963 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:48:34,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:48:34,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:48:34,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:48:34,984 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:48:34,985 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-11-28 16:48:35,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef92201f/f837df5363e444c4864852254affa329/FLAGa8410d1c0 [2019-11-28 16:48:35,546 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:48:35,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0920a.c [2019-11-28 16:48:35,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef92201f/f837df5363e444c4864852254affa329/FLAGa8410d1c0 [2019-11-28 16:48:35,862 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bef92201f/f837df5363e444c4864852254affa329 [2019-11-28 16:48:35,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:48:35,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:48:35,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:35,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:48:35,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:48:35,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:35" (1/1) ... [2019-11-28 16:48:35,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f4ecbee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:35, skipping insertion in model container [2019-11-28 16:48:35,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:48:35" (1/1) ... [2019-11-28 16:48:35,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:48:35,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:48:36,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:36,195 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:48:36,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:48:36,381 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:48:36,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36 WrapperNode [2019-11-28 16:48:36,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:48:36,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:36,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:48:36,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:48:36,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:48:36,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:48:36,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:48:36,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:48:36,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (1/1) ... [2019-11-28 16:48:36,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:48:36,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:48:36,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:48:36,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:48:36,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (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 16:48:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-28 16:48:36,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-28 16:48:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 16:48:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-28 16:48:36,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:48:36,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:48:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-28 16:48:36,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 16:49:00,658 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:49:00,659 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-28 16:49:00,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:00 BoogieIcfgContainer [2019-11-28 16:49:00,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:49:00,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:49:00,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:49:00,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:49:00,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:48:35" (1/3) ... [2019-11-28 16:49:00,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22469a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:00, skipping insertion in model container [2019-11-28 16:49:00,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:48:36" (2/3) ... [2019-11-28 16:49:00,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22469a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:49:00, skipping insertion in model container [2019-11-28 16:49:00,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:00" (3/3) ... [2019-11-28 16:49:00,671 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2019-11-28 16:49:00,682 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:49:00,691 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:49:00,704 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:49:00,736 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:49:00,736 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:49:00,736 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:49:00,737 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:49:00,737 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:49:00,737 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:49:00,738 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:49:00,738 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:49:00,754 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-11-28 16:49:00,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-28 16:49:00,761 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:00,762 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:00,763 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:00,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:00,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2019-11-28 16:49:00,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:00,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904630152] [2019-11-28 16:49:00,779 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 16:49:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:00,979 INFO L264 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-28 16:49:00,984 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:00,999 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 16:49:00,999 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:01,004 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 16:49:01,006 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [904630152] [2019-11-28 16:49:01,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:01,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-28 16:49:01,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35729952] [2019-11-28 16:49:01,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 16:49:01,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:01,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 16:49:01,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 16:49:01,033 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-11-28 16:49:01,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:01,055 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2019-11-28 16:49:01,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 16:49:01,056 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-11-28 16:49:01,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:01,068 INFO L225 Difference]: With dead ends: 69 [2019-11-28 16:49:01,068 INFO L226 Difference]: Without dead ends: 32 [2019-11-28 16:49:01,072 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 16:49:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-28 16:49:01,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-28 16:49:01,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-28 16:49:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-11-28 16:49:01,105 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2019-11-28 16:49:01,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:01,105 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-11-28 16:49:01,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 16:49:01,106 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-11-28 16:49:01,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-28 16:49:01,107 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:01,107 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:01,320 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:49:01,324 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:01,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:01,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2019-11-28 16:49:01,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:01,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074228080] [2019-11-28 16:49:01,327 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 16:49:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:01,534 INFO L264 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 16:49:01,535 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:01,546 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 16:49:01,547 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:01,550 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 16:49:01,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074228080] [2019-11-28 16:49:01,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:01,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-28 16:49:01,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174500848] [2019-11-28 16:49:01,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 16:49:01,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:01,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 16:49:01,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:49:01,555 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2019-11-28 16:49:01,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:01,600 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2019-11-28 16:49:01,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:49:01,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-28 16:49:01,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:01,602 INFO L225 Difference]: With dead ends: 57 [2019-11-28 16:49:01,602 INFO L226 Difference]: Without dead ends: 32 [2019-11-28 16:49:01,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 16:49:01,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-28 16:49:01,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-28 16:49:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-28 16:49:01,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2019-11-28 16:49:01,611 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2019-11-28 16:49:01,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:01,611 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2019-11-28 16:49:01,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 16:49:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2019-11-28 16:49:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 16:49:01,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:01,613 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:01,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 16:49:01,829 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:01,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:01,830 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2019-11-28 16:49:01,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:01,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1203446035] [2019-11-28 16:49:01,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-28 16:49:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:49:02,046 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:49:02,048 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:49:02,253 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 16:49:02,254 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:49:02,490 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 16:49:02,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1203446035] [2019-11-28 16:49:02,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:49:02,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-28 16:49:02,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480227307] [2019-11-28 16:49:02,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-28 16:49:02,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:49:02,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-28 16:49:02,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-28 16:49:02,494 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand 10 states. [2019-11-28 16:49:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:49:08,483 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2019-11-28 16:49:08,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-28 16:49:08,521 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-11-28 16:49:08,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:49:08,522 INFO L225 Difference]: With dead ends: 37 [2019-11-28 16:49:08,522 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 16:49:08,524 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-11-28 16:49:08,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 16:49:08,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 16:49:08,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 16:49:08,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-28 16:49:08,528 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-11-28 16:49:08,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:49:08,529 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-28 16:49:08,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-28 16:49:08,529 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-28 16:49:08,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-28 16:49:08,530 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:49:08,530 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 16:49:08,734 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-28 16:49:08,734 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:49:08,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:49:08,735 INFO L82 PathProgramCache]: Analyzing trace with hash -677236169, now seen corresponding path program 1 times [2019-11-28 16:49:08,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:49:08,736 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452138741] [2019-11-28 16:49:08,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-28 16:49:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:49:11,242 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 16:49:11,243 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:49:11,444 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-28 16:49:11,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:49:11 BoogieIcfgContainer [2019-11-28 16:49:11,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:49:11,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:49:11,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:49:11,509 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:49:11,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:49:00" (3/4) ... [2019-11-28 16:49:11,512 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:49:11,592 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:49:11,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:49:11,595 INFO L168 Benchmark]: Toolchain (without parser) took 35726.79 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 960.3 MB in the beginning and 938.5 MB in the end (delta: 21.8 MB). Peak memory consumption was 141.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:11,596 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 16:49:11,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:11,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.90 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 16:49:11,598 INFO L168 Benchmark]: Boogie Preprocessor took 43.20 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:11,598 INFO L168 Benchmark]: RCFGBuilder took 24178.15 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:11,599 INFO L168 Benchmark]: TraceAbstraction took 10846.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 945.2 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:11,600 INFO L168 Benchmark]: Witness Printer took 84.31 ms. Allocated memory is still 1.1 GB. Free memory was 945.2 MB in the beginning and 938.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:49:11,603 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 513.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.90 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 43.20 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 24178.15 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10846.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 945.2 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. * Witness Printer took 84.31 ms. Allocated memory is still 1.1 GB. Free memory was 945.2 MB in the beginning and 938.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 154]: 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] [L146] double x = __VERIFIER_nondet_double(); [L148] EXPR x < 0 && isfinite_double(x) [L127] __int32_t hx; 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] [L129] ieee_double_shape_type gh_u; [L130] gh_u.value = (x) [L131] EXPR gh_u.parts.msw [L131] (hx) = gh_u.parts.msw [L133] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 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] [L148] EXPR x < 0 && isfinite_double(x) 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] [L148] COND TRUE (x < 0 && isfinite_double(x)) [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] [L150] double res = __ieee754_log(x); [L137] return x != x; 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] [L153] COND TRUE !isnan_double(res) [L154] __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, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 10.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 103 SDtfs, 82 SDslu, 57 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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...