./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0834.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c1f4b5c4 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0834.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 34004772e6a1e54917776a817538fd6c8fd28f94 ............................................................................................................................................................................................................................................................................................................................... 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_0834.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 34004772e6a1e54917776a817538fd6c8fd28f94 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:49:57,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:49:57,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:49:57,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:49:57,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:49:57,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:49:57,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:49:57,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:49:57,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:49:57,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:49:57,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:49:57,061 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:49:57,061 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:49:57,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:49:57,064 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:49:57,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:49:57,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:49:57,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:49:57,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:49:57,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:49:57,084 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:49:57,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:49:57,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:49:57,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:49:57,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:49:57,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:49:57,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:49:57,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:49:57,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:49:57,098 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:49:57,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:49:57,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:49:57,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:49:57,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:49:57,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:49:57,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:49:57,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:49:57,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:49:57,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:49:57,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:49:57,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:49:57,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-08 15:49:57,131 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:49:57,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:49:57,134 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:49:57,134 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:49:57,135 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:49:57,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:49:57,135 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:49:57,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-08 15:49:57,136 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:49:57,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:49:57,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:49:57,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:49:57,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:49:57,138 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:49:57,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:49:57,139 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:49:57,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:49:57,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:49:57,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:49:57,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:49:57,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:49:57,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:57,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:49:57,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:49:57,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:49:57,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-08 15:49:57,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-08 15:49:57,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:49:57,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:49:57,143 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 -> 34004772e6a1e54917776a817538fd6c8fd28f94 [2019-12-08 15:49:57,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:49:57,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:49:57,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:49:57,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:49:57,480 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:49:57,481 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-08 15:49:57,550 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e8b9a6a/b6ee4769ca3c445ebc7c65a52a1579bc/FLAG0128a6d01 [2019-12-08 15:49:57,998 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:49:57,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-08 15:49:58,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e8b9a6a/b6ee4769ca3c445ebc7c65a52a1579bc/FLAG0128a6d01 [2019-12-08 15:49:58,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e8b9a6a/b6ee4769ca3c445ebc7c65a52a1579bc [2019-12-08 15:49:58,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:49:58,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:49:58,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:58,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:49:58,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:49:58,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff83744 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58, skipping insertion in model container [2019-12-08 15:49:58,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:49:58,443 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:49:58,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:58,778 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:49:58,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:49:58,857 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:49:58,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58 WrapperNode [2019-12-08 15:49:58,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:49:58,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:58,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:49:58,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:49:58,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:49:58,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:49:58,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:49:58,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:49:58,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... [2019-12-08 15:49:58,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:49:58,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:49:58,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:49:58,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:49:58,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:49:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:49:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-08 15:49:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-08 15:49:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-08 15:49:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:49:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:49:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-08 15:49:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-08 15:49:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:49:59,566 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:49:59,567 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-08 15:49:59,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:59 BoogieIcfgContainer [2019-12-08 15:49:59,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:49:59,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:49:59,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:49:59,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:49:59,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:49:58" (1/3) ... [2019-12-08 15:49:59,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5022aed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:59, skipping insertion in model container [2019-12-08 15:49:59,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:58" (2/3) ... [2019-12-08 15:49:59,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5022aed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:49:59, skipping insertion in model container [2019-12-08 15:49:59,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:59" (3/3) ... [2019-12-08 15:49:59,576 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2019-12-08 15:49:59,584 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:49:59,591 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:49:59,602 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:49:59,623 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:49:59,623 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:49:59,623 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:49:59,624 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:49:59,624 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:49:59,624 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:49:59,624 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:49:59,624 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:49:59,638 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-12-08 15:49:59,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-08 15:49:59,644 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:59,645 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:59,645 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:59,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:59,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2019-12-08 15:49:59,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:59,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356393996] [2019-12-08 15:49:59,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:49:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:49:59,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:49:59,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356393996] [2019-12-08 15:49:59,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:49:59,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-08 15:49:59,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979853947] [2019-12-08 15:49:59,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:49:59,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-08 15:49:59,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:49:59,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:59,812 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-12-08 15:49:59,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:49:59,834 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2019-12-08 15:49:59,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:49:59,835 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-08 15:49:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:49:59,845 INFO L225 Difference]: With dead ends: 84 [2019-12-08 15:49:59,845 INFO L226 Difference]: Without dead ends: 40 [2019-12-08 15:49:59,848 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:49:59,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-08 15:49:59,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-12-08 15:49:59,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-08 15:49:59,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-12-08 15:49:59,882 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2019-12-08 15:49:59,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:49:59,882 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-12-08 15:49:59,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:49:59,883 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-12-08 15:49:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-08 15:49:59,884 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:49:59,884 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:49:59,884 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:49:59,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:49:59,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2019-12-08 15:49:59,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-08 15:49:59,885 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142930003] [2019-12-08 15:49:59,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-08 15:50:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:50:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:50:00,198 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-08 15:50:00,199 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:50:00,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:50:00 BoogieIcfgContainer [2019-12-08 15:50:00,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:50:00,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:50:00,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:50:00,282 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:50:00,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:59" (3/4) ... [2019-12-08 15:50:00,287 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-08 15:50:00,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:50:00,290 INFO L168 Benchmark]: Toolchain (without parser) took 1895.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -93.9 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:00,291 INFO L168 Benchmark]: CDTParser took 0.80 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. [2019-12-08 15:50:00,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:00,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:50:00,296 INFO L168 Benchmark]: Boogie Preprocessor took 46.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:00,297 INFO L168 Benchmark]: RCFGBuilder took 605.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:00,298 INFO L168 Benchmark]: TraceAbstraction took 712.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:00,299 INFO L168 Benchmark]: Witness Printer took 5.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:50:00,313 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 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 463.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 605.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 712.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 158]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 141, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someBinaryArithmeticDOUBLEoperation at line 71, overapproximation of bitwiseAnd at line 140, overapproximation of someBinaryDOUBLEComparisonOperation at line 70. Possible FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L153] double x = 1.0 / 0.0; [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L58] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L70] COND TRUE x > o_threshold_exp [L71] return huge_exp * huge_exp; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L154] double res = __ieee754_exp(x); [L133] __int32_t hx, lx; VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L135] ieee_double_shape_type ew_u; [L136] ew_u.value = (x) [L137] EXPR ew_u.parts.msw [L137] (hx) = ew_u.parts.msw [L138] EXPR ew_u.parts.lsw [L138] (lx) = ew_u.parts.lsw [L140] hx &= 0x7fffffff [L141] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L142] hx = 0x7ff00000 - hx [L143] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L157] COND TRUE !isinf_double(x) [L158] __VERIFIER_error() VAL [halF_exp={6:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={5:0}, ln2LO_exp={3:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-c1f4b5c [2019-12-08 15:50:02,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-08 15:50:02,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-08 15:50:02,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-08 15:50:02,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-08 15:50:02,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-08 15:50:02,380 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-08 15:50:02,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-08 15:50:02,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-08 15:50:02,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-08 15:50:02,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-08 15:50:02,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-08 15:50:02,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-08 15:50:02,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-08 15:50:02,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-08 15:50:02,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-08 15:50:02,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-08 15:50:02,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-08 15:50:02,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-08 15:50:02,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-08 15:50:02,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-08 15:50:02,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-08 15:50:02,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-08 15:50:02,426 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-08 15:50:02,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-08 15:50:02,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-08 15:50:02,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-08 15:50:02,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-08 15:50:02,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-08 15:50:02,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-08 15:50:02,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-08 15:50:02,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-08 15:50:02,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-08 15:50:02,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-08 15:50:02,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-08 15:50:02,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-08 15:50:02,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-08 15:50:02,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-08 15:50:02,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-08 15:50:02,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-08 15:50:02,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-08 15:50:02,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-08 15:50:02,473 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-08 15:50:02,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-08 15:50:02,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-08 15:50:02,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-08 15:50:02,475 INFO L138 SettingsManager]: * Use SBE=true [2019-12-08 15:50:02,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-08 15:50:02,475 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-08 15:50:02,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-08 15:50:02,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-08 15:50:02,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-08 15:50:02,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-08 15:50:02,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-08 15:50:02,479 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-08 15:50:02,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-08 15:50:02,480 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-08 15:50:02,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-08 15:50:02,480 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-08 15:50:02,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-08 15:50:02,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-08 15:50:02,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-08 15:50:02,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-08 15:50:02,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-08 15:50:02,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:50:02,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-08 15:50:02,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-08 15:50:02,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-08 15:50:02,484 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-08 15:50:02,484 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-08 15:50:02,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-08 15:50:02,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-08 15:50:02,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-08 15:50:02,485 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 -> 34004772e6a1e54917776a817538fd6c8fd28f94 [2019-12-08 15:50:02,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-08 15:50:02,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-08 15:50:02,816 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-08 15:50:02,817 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-08 15:50:02,818 INFO L275 PluginConnector]: CDTParser initialized [2019-12-08 15:50:02,818 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-08 15:50:02,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30e4d0e67/87c376d3c43c4f48acf288c0cf12c2d2/FLAG426a947ad [2019-12-08 15:50:03,335 INFO L306 CDTParser]: Found 1 translation units. [2019-12-08 15:50:03,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0834.c [2019-12-08 15:50:03,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30e4d0e67/87c376d3c43c4f48acf288c0cf12c2d2/FLAG426a947ad [2019-12-08 15:50:03,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30e4d0e67/87c376d3c43c4f48acf288c0cf12c2d2 [2019-12-08 15:50:03,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-08 15:50:03,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-08 15:50:03,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-08 15:50:03,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-08 15:50:03,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-08 15:50:03,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:50:03" (1/1) ... [2019-12-08 15:50:03,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2450fa9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:03, skipping insertion in model container [2019-12-08 15:50:03,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:50:03" (1/1) ... [2019-12-08 15:50:03,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-08 15:50:03,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-08 15:50:04,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:50:04,054 INFO L203 MainTranslator]: Completed pre-run [2019-12-08 15:50:04,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-08 15:50:04,207 INFO L208 MainTranslator]: Completed translation [2019-12-08 15:50:04,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04 WrapperNode [2019-12-08 15:50:04,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-08 15:50:04,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-08 15:50:04,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-08 15:50:04,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-08 15:50:04,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-08 15:50:04,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-08 15:50:04,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-08 15:50:04,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-08 15:50:04,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... [2019-12-08 15:50:04,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-08 15:50:04,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-08 15:50:04,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-08 15:50:04,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-08 15:50:04,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-08 15:50:04,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-08 15:50:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-08 15:50:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-08 15:50:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-08 15:50:04,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-08 15:50:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-08 15:50:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-08 15:50:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-08 15:50:04,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-08 15:50:16,854 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-08 15:50:16,854 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-08 15:50:16,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:50:16 BoogieIcfgContainer [2019-12-08 15:50:16,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-08 15:50:16,857 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-08 15:50:16,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-08 15:50:16,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-08 15:50:16,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:50:03" (1/3) ... [2019-12-08 15:50:16,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea38acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:50:16, skipping insertion in model container [2019-12-08 15:50:16,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:50:04" (2/3) ... [2019-12-08 15:50:16,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ea38acf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:50:16, skipping insertion in model container [2019-12-08 15:50:16,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:50:16" (3/3) ... [2019-12-08 15:50:16,865 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0834.c [2019-12-08 15:50:16,876 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-08 15:50:16,884 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-08 15:50:16,896 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-08 15:50:16,920 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-08 15:50:16,920 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-08 15:50:16,920 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-08 15:50:16,920 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-08 15:50:16,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-08 15:50:16,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-08 15:50:16,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-08 15:50:16,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-08 15:50:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2019-12-08 15:50:16,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-08 15:50:16,942 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:50:16,943 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:50:16,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:50:16,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:50:16,949 INFO L82 PathProgramCache]: Analyzing trace with hash -1546239330, now seen corresponding path program 1 times [2019-12-08 15:50:16,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:50:16,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325633288] [2019-12-08 15:50:16,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-08 15:50:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:50:17,419 INFO L264 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-08 15:50:17,424 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:50:17,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:50:17,437 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:50:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:50:17,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325633288] [2019-12-08 15:50:17,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:50:17,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-08 15:50:17,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072587448] [2019-12-08 15:50:17,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-08 15:50:17,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:50:17,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-08 15:50:17,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:50:17,462 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2019-12-08 15:50:17,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:50:17,482 INFO L93 Difference]: Finished difference Result 84 states and 136 transitions. [2019-12-08 15:50:17,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-08 15:50:17,483 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-12-08 15:50:17,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:50:17,494 INFO L225 Difference]: With dead ends: 84 [2019-12-08 15:50:17,495 INFO L226 Difference]: Without dead ends: 40 [2019-12-08 15:50:17,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-08 15:50:17,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-12-08 15:50:17,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-12-08 15:50:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-12-08 15:50:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-12-08 15:50:17,539 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 13 [2019-12-08 15:50:17,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:50:17,539 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-12-08 15:50:17,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-08 15:50:17,539 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-12-08 15:50:17,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-08 15:50:17,540 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:50:17,540 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:50:17,755 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-08 15:50:17,755 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:50:17,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:50:17,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1188959094, now seen corresponding path program 1 times [2019-12-08 15:50:17,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:50:17,757 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916642724] [2019-12-08 15:50:17,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-08 15:50:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:50:18,178 INFO L264 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-08 15:50:18,180 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:50:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:50:18,330 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:50:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:50:18,441 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916642724] [2019-12-08 15:50:18,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:50:18,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-12-08 15:50:18,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365644217] [2019-12-08 15:50:18,444 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-08 15:50:18,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:50:18,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-08 15:50:18,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-08 15:50:18,445 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 7 states. [2019-12-08 15:50:18,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:50:18,643 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2019-12-08 15:50:18,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-08 15:50:18,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-12-08 15:50:18,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:50:18,645 INFO L225 Difference]: With dead ends: 48 [2019-12-08 15:50:18,645 INFO L226 Difference]: Without dead ends: 20 [2019-12-08 15:50:18,647 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-08 15:50:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-08 15:50:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-08 15:50:18,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-08 15:50:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-12-08 15:50:18,652 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2019-12-08 15:50:18,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:50:18,652 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-12-08 15:50:18,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-08 15:50:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-12-08 15:50:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-08 15:50:18,653 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:50:18,653 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:50:18,868 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-08 15:50:18,869 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:50:18,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:50:18,870 INFO L82 PathProgramCache]: Analyzing trace with hash 968811170, now seen corresponding path program 1 times [2019-12-08 15:50:18,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:50:18,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333807742] [2019-12-08 15:50:18,872 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 [2019-12-08 15:50:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-08 15:50:19,275 INFO L264 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-08 15:50:19,278 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-08 15:50:19,451 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2019-12-08 15:50:19,470 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-08 15:50:19,476 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-08 15:50:19,477 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-08 15:50:19,516 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-08 15:50:19,517 INFO L534 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-12-08 15:50:19,519 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:49, output treesize:38 [2019-12-08 15:50:19,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:50:19,581 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-08 15:50:19,632 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2019-12-08 15:50:19,638 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-08 15:50:19,641 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-08 15:50:19,641 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-08 15:50:19,651 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-08 15:50:19,652 INFO L534 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-12-08 15:50:19,652 INFO L239 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:19 [2019-12-08 15:50:19,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-08 15:50:19,777 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333807742] [2019-12-08 15:50:19,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-08 15:50:19,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-08 15:50:19,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217131654] [2019-12-08 15:50:19,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-08 15:50:19,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-08 15:50:19,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-08 15:50:19,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-08 15:50:19,780 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2019-12-08 15:50:20,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-08 15:50:20,010 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2019-12-08 15:50:20,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-08 15:50:20,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-08 15:50:20,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-08 15:50:20,013 INFO L225 Difference]: With dead ends: 28 [2019-12-08 15:50:20,013 INFO L226 Difference]: Without dead ends: 20 [2019-12-08 15:50:20,014 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-12-08 15:50:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-12-08 15:50:20,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-12-08 15:50:20,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-12-08 15:50:20,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-12-08 15:50:20,019 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 17 [2019-12-08 15:50:20,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-08 15:50:20,020 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-12-08 15:50:20,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-08 15:50:20,020 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-12-08 15:50:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-08 15:50:20,021 INFO L403 BasicCegarLoop]: Found error trace [2019-12-08 15:50:20,021 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-08 15:50:20,235 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-08 15:50:20,235 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-08 15:50:20,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-08 15:50:20,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2079354756, now seen corresponding path program 1 times [2019-12-08 15:50:20,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-08 15:50:20,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749262487] [2019-12-08 15:50:20,237 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 [2019-12-08 15:50:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:50:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-08 15:50:21,199 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-08 15:50:21,200 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-08 15:50:21,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-08 15:50:21,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:50:21 BoogieIcfgContainer [2019-12-08 15:50:21,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-08 15:50:21,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-08 15:50:21,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-08 15:50:21,496 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-08 15:50:21,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:50:16" (3/4) ... [2019-12-08 15:50:21,499 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-08 15:50:21,632 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-12-08 15:50:21,635 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-08 15:50:21,637 INFO L168 Benchmark]: Toolchain (without parser) took 17900.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 956.3 MB in the beginning and 913.9 MB in the end (delta: 42.4 MB). Peak memory consumption was 161.9 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:21,637 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-08 15:50:21,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:21,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.70 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. [2019-12-08 15:50:21,643 INFO L168 Benchmark]: Boogie Preprocessor took 51.41 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. [2019-12-08 15:50:21,644 INFO L168 Benchmark]: RCFGBuilder took 12529.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:21,646 INFO L168 Benchmark]: TraceAbstraction took 4637.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 920.6 MB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:21,646 INFO L168 Benchmark]: Witness Printer took 139.84 ms. Allocated memory is still 1.1 GB. Free memory was 920.6 MB in the beginning and 913.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-08 15:50:21,651 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 471.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.70 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 51.41 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 12529.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4637.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 920.6 MB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. * Witness Printer took 139.84 ms. Allocated memory is still 1.1 GB. Free memory was 920.6 MB in the beginning and 913.9 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: 158]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17-L42] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L153] double x = 1.0 / 0.0; [L45] double y, hi, lo, c, t; [L46] __int32_t k = 0, xsb; [L47] __uint32_t hx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L50] ieee_double_shape_type gh_u; [L51] gh_u.value = (x) [L52] EXPR gh_u.parts.msw [L52] (hx) = gh_u.parts.msw [L54] xsb = (hx >> 31) & 1 [L55] hx &= 0x7fffffff VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L57] COND TRUE hx >= 0x40862E42 VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L58] COND TRUE hx >= 0x7ff00000 [L59] __uint32_t lx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L61] ieee_double_shape_type gl_u; [L62] gl_u.value = (x) [L63] EXPR gl_u.parts.lsw [L63] (lx) = gl_u.parts.lsw [L65] COND FALSE !(((hx & 0xfffff) | lx) != 0) VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L68] EXPR (xsb == 0) ? x : 0.0 VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L68] return (xsb == 0) ? x : 0.0; [L154] double res = __ieee754_exp(x); [L133] __int32_t hx, lx; VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L135] ieee_double_shape_type ew_u; [L136] ew_u.value = (x) [L137] EXPR ew_u.parts.msw [L137] (hx) = ew_u.parts.msw [L138] EXPR ew_u.parts.lsw [L138] (lx) = ew_u.parts.lsw [L140] hx &= 0x7fffffff [L141] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L142] hx = 0x7ff00000 - hx [L143] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] [L157] COND TRUE !isinf_double(x) [L158] __VERIFIER_error() VAL [halF_exp={-2147483645:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1.4426950408889634, ln2HI_exp={7:0}, ln2LO_exp={2:0}, o_threshold_exp=709.782712893384, one_exp=1.0, P1_exp=0.16666666666666602, P2_exp=-0.0027777777777015593, P3_exp=0.00006613756321437934, P4_exp=-0.0000016533902205465252, P5_exp=0.000000041381367970572385, twom1000_exp=0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000009332636185032189, u_threshold_exp=-745.1332191019411] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Result: UNSAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 80 SDtfs, 109 SDslu, 9 SDs, 0 SdLazy, 28 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 70 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 1.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 20 QuantifiedInterpolants, 8230 SizeOfPredicates, 16 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 20 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! Received shutdown request...