./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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_1052c.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c ................................................................................................................................................................................................................................................................................................ 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 -Xmx15G -Xms4m -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_1052c.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.25-9a8b2e8 [2020-10-20 00:32:37,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:32:37,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:32:37,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:32:37,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:32:37,859 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:32:37,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:32:37,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:32:37,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:32:37,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:32:37,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:32:37,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:32:37,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:32:37,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:32:37,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:32:37,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:32:37,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:32:37,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:32:37,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:32:37,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:32:37,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:32:37,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:32:37,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:32:37,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:32:37,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:32:37,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:32:37,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:32:37,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:32:37,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:32:37,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:32:37,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:32:37,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:32:37,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:32:37,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:32:37,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:32:37,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:32:37,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:32:37,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:32:37,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:32:37,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:32:37,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:32:37,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:32:37,972 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:32:37,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:32:37,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:32:37,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:32:37,976 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:32:37,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:32:37,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:32:37,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:32:37,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:32:37,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:32:37,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:32:37,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:32:37,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:32:37,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:32:37,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:32:37,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:32:37,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:32:37,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:32:37,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:32:37,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:32:37,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:32:37,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:32:37,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:32:37,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:32:37,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:32:37,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:32:37,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:32:37,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:32:37,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:32:37,985 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(reach_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 -> 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c [2020-10-20 00:32:38,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:32:38,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:32:38,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:32:38,216 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:32:38,217 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:32:38,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-10-20 00:32:38,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9d0c646/bb0da58de5084c1ca81d864b04e5fa39/FLAG8d42693d6 [2020-10-20 00:32:38,805 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:32:38,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-10-20 00:32:38,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9d0c646/bb0da58de5084c1ca81d864b04e5fa39/FLAG8d42693d6 [2020-10-20 00:32:39,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9d0c646/bb0da58de5084c1ca81d864b04e5fa39 [2020-10-20 00:32:39,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:32:39,125 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:32:39,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:39,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:32:39,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:32:39,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55365e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39, skipping insertion in model container [2020-10-20 00:32:39,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,144 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:32:39,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:32:39,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:39,429 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:32:39,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:39,525 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:32:39,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39 WrapperNode [2020-10-20 00:32:39,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:39,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:39,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:32:39,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:32:39,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:39,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:32:39,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:32:39,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:32:39,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (1/1) ... [2020-10-20 00:32:39,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:32:39,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:32:39,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:32:39,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:32:39,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (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 [2020-10-20 00:32:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:32:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:32:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:32:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:32:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:32:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:32:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:32:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:32:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:32:40,059 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:32:40,059 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 00:32:40,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:40 BoogieIcfgContainer [2020-10-20 00:32:40,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:32:40,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:32:40,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:32:40,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:32:40,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:32:39" (1/3) ... [2020-10-20 00:32:40,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46876544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:40, skipping insertion in model container [2020-10-20 00:32:40,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:39" (2/3) ... [2020-10-20 00:32:40,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46876544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:40, skipping insertion in model container [2020-10-20 00:32:40,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:40" (3/3) ... [2020-10-20 00:32:40,074 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2020-10-20 00:32:40,090 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:32:40,099 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:32:40,119 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:32:40,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:32:40,147 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:32:40,148 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:32:40,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:32:40,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:32:40,148 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:32:40,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:32:40,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:32:40,167 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-20 00:32:40,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:32:40,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:40,176 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:40,176 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:40,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:40,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2020-10-20 00:32:40,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:32:40,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164498551] [2020-10-20 00:32:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:32:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:40,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:40,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164498551] [2020-10-20 00:32:40,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:40,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:32:40,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163942879] [2020-10-20 00:32:40,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:32:40,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:32:40,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:32:40,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:40,378 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-10-20 00:32:40,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:40,403 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions. [2020-10-20 00:32:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:32:40,404 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-20 00:32:40,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:40,417 INFO L225 Difference]: With dead ends: 75 [2020-10-20 00:32:40,417 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 00:32:40,421 INFO L677 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 [2020-10-20 00:32:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 00:32:40,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 00:32:40,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 00:32:40,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2020-10-20 00:32:40,467 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2020-10-20 00:32:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:40,468 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2020-10-20 00:32:40,468 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:32:40,468 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-10-20 00:32:40,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:32:40,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:40,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:40,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:32:40,471 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:40,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:40,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2020-10-20 00:32:40,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:32:40,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416559419] [2020-10-20 00:32:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:32:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:40,521 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:40,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:40,598 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:32:40,598 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:32:40,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:32:40,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:32:40 BoogieIcfgContainer [2020-10-20 00:32:40,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:32:40,639 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:32:40,639 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:32:40,639 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:32:40,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:40" (3/4) ... [2020-10-20 00:32:40,644 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:32:40,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:32:40,647 INFO L168 Benchmark]: Toolchain (without parser) took 1526.29 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 24.5 MB in the beginning and 11.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,648 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 33.0 MB. Free memory was 12.1 MB in the beginning and 12.1 MB in the end (delta: 49.2 kB). Peak memory consumption was 49.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.84 ms. Allocated memory is still 44.6 MB. Free memory was 23.6 MB in the beginning and 24.1 MB in the end (delta: -457.2 kB). Peak memory consumption was 14.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.13 ms. Allocated memory is still 44.6 MB. Free memory was 24.1 MB in the beginning and 22.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,650 INFO L168 Benchmark]: Boogie Preprocessor took 33.26 ms. Allocated memory is still 44.6 MB. Free memory was 22.1 MB in the beginning and 20.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,651 INFO L168 Benchmark]: RCFGBuilder took 458.58 ms. Allocated memory was 44.6 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Free memory was 20.0 MB in the beginning and 17.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,652 INFO L168 Benchmark]: TraceAbstraction took 574.03 ms. Allocated memory was 47.2 MB in the beginning and 47.7 MB in the end (delta: 524.3 kB). Free memory was 16.9 MB in the beginning and 11.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,653 INFO L168 Benchmark]: Witness Printer took 5.35 ms. Allocated memory is still 47.7 MB. Free memory was 11.5 MB in the beginning and 11.2 MB in the end (delta: 323.7 kB). Peak memory consumption was 323.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:40,659 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 33.0 MB. Free memory was 12.1 MB in the beginning and 12.1 MB in the end (delta: 49.2 kB). Peak memory consumption was 49.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 399.84 ms. Allocated memory is still 44.6 MB. Free memory was 23.6 MB in the beginning and 24.1 MB in the end (delta: -457.2 kB). Peak memory consumption was 14.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.13 ms. Allocated memory is still 44.6 MB. Free memory was 24.1 MB in the beginning and 22.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 33.26 ms. Allocated memory is still 44.6 MB. Free memory was 22.1 MB in the beginning and 20.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 14.3 GB. * RCFGBuilder took 458.58 ms. Allocated memory was 44.6 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Free memory was 20.0 MB in the beginning and 17.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 574.03 ms. Allocated memory was 47.2 MB in the beginning and 47.7 MB in the end (delta: 524.3 kB). Free memory was 16.9 MB in the beginning and 11.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.9 MB. Max. memory is 14.3 GB. * Witness Printer took 5.35 ms. Allocated memory is still 47.7 MB. Free memory was 11.5 MB in the beginning and 11.2 MB in the end (delta: 323.7 kB). Peak memory consumption was 323.7 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 39, overapproximation of bitwiseOr at line 40, overapproximation of someUnaryDOUBLEoperation at line 100, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L100] double x = -0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double res = floor_double(x); [L104] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_1052c.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 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=39occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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, ACCELERATED_INTERPOLATION: 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 0.1.25-9a8b2e8 [2020-10-20 00:32:42,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:32:42,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:32:42,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:32:42,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:32:42,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:32:42,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:32:42,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:32:42,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:32:42,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:32:42,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:32:42,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:32:42,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:32:42,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:32:42,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:32:42,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:32:42,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:32:42,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:32:42,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:32:42,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:32:42,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:32:42,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:32:42,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:32:42,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:32:42,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:32:42,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:32:42,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:32:42,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:32:42,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:32:42,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:32:42,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:32:42,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:32:42,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:32:42,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:32:42,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:32:42,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:32:42,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:32:42,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:32:42,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:32:42,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:32:42,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:32:42,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:32:42,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:32:42,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:32:42,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:32:42,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:32:42,971 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:32:42,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:32:42,972 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:32:42,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:32:42,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:32:42,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:32:42,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:32:42,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:32:42,974 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:32:42,974 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:32:42,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:32:42,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:32:42,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:32:42,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:32:42,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:32:42,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:32:42,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:32:42,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:32:42,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:32:42,981 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:32:42,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:32:42,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:32:42,982 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:32:42,982 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:32:42,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:32:42,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:32:42,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:32:42,984 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(reach_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 -> 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c [2020-10-20 00:32:43,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:32:43,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:32:43,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:32:43,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:32:43,206 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:32:43,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-10-20 00:32:43,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67de9e94e/74c9c4a837054949908044b5855652aa/FLAG42728e719 [2020-10-20 00:32:43,737 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:32:43,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-10-20 00:32:43,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67de9e94e/74c9c4a837054949908044b5855652aa/FLAG42728e719 [2020-10-20 00:32:44,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67de9e94e/74c9c4a837054949908044b5855652aa [2020-10-20 00:32:44,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:32:44,116 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:32:44,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:44,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:32:44,121 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:32:44,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71c4ba8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44, skipping insertion in model container [2020-10-20 00:32:44,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:32:44,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:32:44,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:44,438 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:32:44,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:32:44,506 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:32:44,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44 WrapperNode [2020-10-20 00:32:44,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:32:44,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:44,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:32:44,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:32:44,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:32:44,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:32:44,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:32:44,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:32:44,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (1/1) ... [2020-10-20 00:32:44,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:32:44,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:32:44,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:32:44,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:32:44,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (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 [2020-10-20 00:32:44,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:32:44,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:32:44,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:32:44,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:32:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:32:46,014 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:32:46,015 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-20 00:32:46,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:46 BoogieIcfgContainer [2020-10-20 00:32:46,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:32:46,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:32:46,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:32:46,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:32:46,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:32:44" (1/3) ... [2020-10-20 00:32:46,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e12b9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:46, skipping insertion in model container [2020-10-20 00:32:46,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:32:44" (2/3) ... [2020-10-20 00:32:46,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e12b9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:46, skipping insertion in model container [2020-10-20 00:32:46,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:46" (3/3) ... [2020-10-20 00:32:46,025 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2020-10-20 00:32:46,035 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:32:46,042 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:32:46,055 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:32:46,078 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:32:46,078 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:32:46,079 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:32:46,079 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:32:46,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:32:46,079 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:32:46,079 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:32:46,079 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:32:46,093 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-10-20 00:32:46,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 00:32:46,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:46,100 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:46,100 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:46,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:46,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2020-10-20 00:32:46,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:46,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120203406] [2020-10-20 00:32:46,116 INFO L95 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 [2020-10-20 00:32:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:46,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:32:46,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:46,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:46,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:46,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:46,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120203406] [2020-10-20 00:32:46,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:46,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:32:46,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156415243] [2020-10-20 00:32:46,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:32:46,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:46,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:32:46,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:46,265 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-10-20 00:32:46,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:46,284 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions. [2020-10-20 00:32:46,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:32:46,286 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-20 00:32:46,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:46,295 INFO L225 Difference]: With dead ends: 75 [2020-10-20 00:32:46,295 INFO L226 Difference]: Without dead ends: 35 [2020-10-20 00:32:46,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:46,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-20 00:32:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-20 00:32:46,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-20 00:32:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2020-10-20 00:32:46,331 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2020-10-20 00:32:46,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:46,331 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2020-10-20 00:32:46,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:32:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-10-20 00:32:46,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:32:46,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:46,333 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:46,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:32:46,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:46,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:46,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2020-10-20 00:32:46,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:46,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [670743724] [2020-10-20 00:32:46,559 INFO L95 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 [2020-10-20 00:32:46,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:46,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:32:46,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:46,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:46,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:46,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:46,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [670743724] [2020-10-20 00:32:46,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:46,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:32:46,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122849160] [2020-10-20 00:32:46,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:32:46,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:46,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:32:46,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:32:46,858 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2020-10-20 00:32:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:47,388 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2020-10-20 00:32:47,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 00:32:47,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-10-20 00:32:47,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:47,391 INFO L225 Difference]: With dead ends: 59 [2020-10-20 00:32:47,391 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 00:32:47,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-20 00:32:47,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 00:32:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-10-20 00:32:47,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 00:32:47,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-20 00:32:47,400 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2020-10-20 00:32:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:47,400 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-20 00:32:47,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:32:47,401 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-20 00:32:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:32:47,402 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:47,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:47,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:32:47,616 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:47,618 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2020-10-20 00:32:47,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:47,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195747556] [2020-10-20 00:32:47,620 INFO L95 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 [2020-10-20 00:32:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:47,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 00:32:47,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:47,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:48,884 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-20 00:32:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:32:49,175 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195747556] [2020-10-20 00:32:49,175 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:49,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:32:49,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443218623] [2020-10-20 00:32:49,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:32:49,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:49,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:32:49,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:32:49,177 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-10-20 00:32:49,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:49,502 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-10-20 00:32:49,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:32:49,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-20 00:32:49,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:49,514 INFO L225 Difference]: With dead ends: 34 [2020-10-20 00:32:49,514 INFO L226 Difference]: Without dead ends: 22 [2020-10-20 00:32:49,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:32:49,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-20 00:32:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-20 00:32:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-20 00:32:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-20 00:32:49,520 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-10-20 00:32:49,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:49,520 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-20 00:32:49,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:32:49,521 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-20 00:32:49,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 00:32:49,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:49,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:49,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:32:49,727 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:49,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash 461150674, now seen corresponding path program 1 times [2020-10-20 00:32:49,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:49,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126071573] [2020-10-20 00:32:49,730 INFO L95 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 [2020-10-20 00:32:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:49,929 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:50,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:50,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:50,141 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:32:50,142 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:32:50,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:32:50,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:32:50 BoogieIcfgContainer [2020-10-20 00:32:50,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:32:50,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:32:50,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:32:50,394 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:32:50,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:46" (3/4) ... [2020-10-20 00:32:50,397 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:32:50,473 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:32:50,473 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:32:50,475 INFO L168 Benchmark]: Toolchain (without parser) took 6364.06 ms. Allocated memory was 38.3 MB in the beginning and 52.4 MB in the end (delta: 14.2 MB). Free memory was 16.6 MB in the beginning and 31.5 MB in the end (delta: -14.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,476 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 36.2 MB. Free memory was 8.6 MB in the beginning and 8.6 MB in the end (delta: 37.2 kB). Peak memory consumption was 37.2 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.34 ms. Allocated memory was 38.3 MB in the beginning and 47.7 MB in the end (delta: 9.4 MB). Free memory was 15.7 MB in the beginning and 24.3 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 47.7 MB. Free memory was 24.3 MB in the beginning and 22.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,478 INFO L168 Benchmark]: Boogie Preprocessor took 42.01 ms. Allocated memory is still 47.7 MB. Free memory was 22.2 MB in the beginning and 20.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,479 INFO L168 Benchmark]: RCFGBuilder took 1420.13 ms. Allocated memory was 47.7 MB in the beginning and 48.8 MB in the end (delta: 1.0 MB). Free memory was 20.2 MB in the beginning and 25.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,480 INFO L168 Benchmark]: TraceAbstraction took 4375.27 ms. Allocated memory was 48.8 MB in the beginning and 52.4 MB in the end (delta: 3.7 MB). Free memory was 24.9 MB in the beginning and 13.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,481 INFO L168 Benchmark]: Witness Printer took 79.58 ms. Allocated memory is still 52.4 MB. Free memory was 13.9 MB in the beginning and 31.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 957.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:50,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 36.2 MB. Free memory was 8.6 MB in the beginning and 8.6 MB in the end (delta: 37.2 kB). Peak memory consumption was 37.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 389.34 ms. Allocated memory was 38.3 MB in the beginning and 47.7 MB in the end (delta: 9.4 MB). Free memory was 15.7 MB in the beginning and 24.3 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 47.7 MB. Free memory was 24.3 MB in the beginning and 22.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 42.01 ms. Allocated memory is still 47.7 MB. Free memory was 22.2 MB in the beginning and 20.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1420.13 ms. Allocated memory was 47.7 MB in the beginning and 48.8 MB in the end (delta: 1.0 MB). Free memory was 20.2 MB in the beginning and 25.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4375.27 ms. Allocated memory was 48.8 MB in the beginning and 52.4 MB in the end (delta: 3.7 MB). Free memory was 24.9 MB in the beginning and 13.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. * Witness Printer took 79.58 ms. Allocated memory is still 52.4 MB. Free memory was 13.9 MB in the beginning and 31.5 MB in the end (delta: -17.6 MB). Peak memory consumption was 957.9 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L100] double x = -0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND TRUE huge_floor + x > 0.0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND FALSE !(i0 >= 0) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L33] COND TRUE ((i0 & 0x7fffffff) | i1) != 0 [L34] i0 = 0xbff00000 [L35] i1 = 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L73] ieee_double_shape_type iw_u; [L74] iw_u.parts.msw = (i0) [L75] iw_u.parts.lsw = (i1) [L76] EXPR iw_u.value [L76] (x) = iw_u.value [L78] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double res = floor_double(x); [L104] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_1052c.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 105 SDslu, 59 SDs, 0 SdLazy, 30 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 5 QuantifiedInterpolants, 3734 SizeOfPredicates, 11 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 15 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...