./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0960b.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_0960b.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 411418f84906bedc11fcfc3b7bde3a728b9fa839 ........................................................................................................................................................................................................................................................................................................................ 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_0960b.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 411418f84906bedc11fcfc3b7bde3a728b9fa839 ..................................................................................................................................................................................................................................................................................................................................... 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 00:31:45,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:31:45,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:31:45,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:31:45,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:31:45,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:31:45,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:31:45,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:31:45,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:31:45,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:31:45,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:31:45,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:31:45,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:31:45,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:31:45,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:31:45,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:31:45,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:31:45,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:31:45,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:31:45,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:31:45,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:31:45,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:31:45,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:31:45,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:31:45,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:31:45,485 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:31:45,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:31:45,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:31:45,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:31:45,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:31:45,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:31:45,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:31:45,490 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:31:45,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:31:45,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:31:45,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:31:45,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:31:45,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:31:45,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:31:45,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:31:45,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:31:45,496 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:31:45,527 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:31:45,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:31:45,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:31:45,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:31:45,529 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:31:45,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:31:45,530 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:31:45,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:31:45,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:31:45,530 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:31:45,530 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:31:45,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:31:45,531 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:31:45,531 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:31:45,531 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:31:45,532 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:31:45,532 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:31:45,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:31:45,533 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:31:45,533 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:31:45,533 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:31:45,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:31:45,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:31:45,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:31:45,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:31:45,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:31:45,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:31:45,535 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:31:45,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:31:45,535 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 -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2020-10-20 00:31:45,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:31:45,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:31:45,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:31:45,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:31:45,788 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:31:45,789 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-10-20 00:31:45,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815f4f0aa/b119314d4e864552ad69eb80a19ba7f1/FLAGcbbcf96c5 [2020-10-20 00:31:46,451 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:31:46,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-10-20 00:31:46,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815f4f0aa/b119314d4e864552ad69eb80a19ba7f1/FLAGcbbcf96c5 [2020-10-20 00:31:46,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/815f4f0aa/b119314d4e864552ad69eb80a19ba7f1 [2020-10-20 00:31:46,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:31:46,716 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:31:46,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:46,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:31:46,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:31:46,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:46" (1/1) ... [2020-10-20 00:31:46,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f754e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:46, skipping insertion in model container [2020-10-20 00:31:46,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:46" (1/1) ... [2020-10-20 00:31:46,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:31:46,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:31:47,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:47,035 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:31:47,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:47,106 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:31:47,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47 WrapperNode [2020-10-20 00:31:47,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:47,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:47,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:31:47,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:31:47,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,167 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:47,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:31:47,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:31:47,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:31:47,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (1/1) ... [2020-10-20 00:31:47,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:31:47,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:31:47,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:31:47,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:31:47,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (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 00:31:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:31:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:31:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:31:47,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:31:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:31:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:31:47,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:31:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:31:47,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:31:47,835 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:31:47,835 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-20 00:31:47,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:31:47 BoogieIcfgContainer [2020-10-20 00:31:47,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:31:47,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:31:47,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:31:47,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:31:47,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:31:46" (1/3) ... [2020-10-20 00:31:47,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2692d842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:31:47, skipping insertion in model container [2020-10-20 00:31:47,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:47" (2/3) ... [2020-10-20 00:31:47,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2692d842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:31:47, skipping insertion in model container [2020-10-20 00:31:47,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:31:47" (3/3) ... [2020-10-20 00:31:47,864 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-10-20 00:31:47,876 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:31:47,884 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:31:47,896 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:31:47,920 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:31:47,920 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:31:47,920 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:31:47,920 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:31:47,921 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:31:47,921 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:31:47,921 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:31:47,921 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:31:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-10-20 00:31:47,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:31:47,947 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:31:47,948 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:31:47,948 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:31:47,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:31:47,954 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-10-20 00:31:47,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:31:47,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240637612] [2020-10-20 00:31:47,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:31:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:31:48,121 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 00:31:48,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240637612] [2020-10-20 00:31:48,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:31:48,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:31:48,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902297296] [2020-10-20 00:31:48,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:31:48,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:31:48,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:31:48,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:31:48,150 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-10-20 00:31:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:31:48,175 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2020-10-20 00:31:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:31:48,176 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-20 00:31:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:31:48,189 INFO L225 Difference]: With dead ends: 89 [2020-10-20 00:31:48,189 INFO L226 Difference]: Without dead ends: 42 [2020-10-20 00:31:48,193 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 00:31:48,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-20 00:31:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-20 00:31:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 00:31:48,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-10-20 00:31:48,236 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-10-20 00:31:48,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:31:48,237 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-10-20 00:31:48,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:31:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-10-20 00:31:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:31:48,238 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:31:48,238 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:31:48,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:31:48,239 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:31:48,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:31:48,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-10-20 00:31:48,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:31:48,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938632890] [2020-10-20 00:31:48,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:31:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:31:48,344 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:31:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:31:48,498 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:31:48,536 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:31:48,536 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:31:48,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:31:48,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:31:48 BoogieIcfgContainer [2020-10-20 00:31:48,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:31:48,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:31:48,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:31:48,590 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:31:48,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:31:47" (3/4) ... [2020-10-20 00:31:48,595 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:31:48,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:31:48,600 INFO L168 Benchmark]: Toolchain (without parser) took 1888.14 ms. Allocated memory was 42.5 MB in the beginning and 51.4 MB in the end (delta: 8.9 MB). Free memory was 23.7 MB in the beginning and 21.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 11.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,601 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 32.0 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 48.5 kB). Peak memory consumption was 48.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.74 ms. Allocated memory was 42.5 MB in the beginning and 46.1 MB in the end (delta: 3.7 MB). Free memory was 22.7 MB in the beginning and 24.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.13 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 21.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,606 INFO L168 Benchmark]: Boogie Preprocessor took 45.69 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 19.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,608 INFO L168 Benchmark]: RCFGBuilder took 624.35 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 19.0 MB in the beginning and 8.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,609 INFO L168 Benchmark]: TraceAbstraction took 750.01 ms. Allocated memory was 46.7 MB in the beginning and 51.4 MB in the end (delta: 4.7 MB). Free memory was 8.0 MB in the beginning and 22.0 MB in the end (delta: -14.1 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:31:48,610 INFO L168 Benchmark]: Witness Printer took 5.71 ms. Allocated memory is still 51.4 MB. Free memory was 21.6 MB in the beginning and 21.1 MB in the end (delta: 445.9 kB). Peak memory consumption was 445.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:31:48,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 32.0 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 48.5 kB). Peak memory consumption was 48.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 389.74 ms. Allocated memory was 42.5 MB in the beginning and 46.1 MB in the end (delta: 3.7 MB). Free memory was 22.7 MB in the beginning and 24.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 59.13 ms. Allocated memory is still 46.1 MB. Free memory was 24.1 MB in the beginning and 21.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 45.69 ms. Allocated memory is still 46.1 MB. Free memory was 21.5 MB in the beginning and 19.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 624.35 ms. Allocated memory was 46.1 MB in the beginning and 46.7 MB in the end (delta: 524.3 kB). Free memory was 19.0 MB in the beginning and 8.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * TraceAbstraction took 750.01 ms. Allocated memory was 46.7 MB in the beginning and 51.4 MB in the end (delta: 4.7 MB). Free memory was 8.0 MB in the beginning and 22.0 MB in the end (delta: -14.1 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 5.71 ms. Allocated memory is still 51.4 MB. Free memory was 21.6 MB in the beginning and 21.1 MB in the end (delta: 445.9 kB). Peak memory consumption was 445.9 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 bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 183, overapproximation of someBinaryArithmeticDOUBLEoperation at line 150, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L128-L131] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L133] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L183] double x = -0.0; [L136] double y, z; [L137] __int32_t i, k, hx; [L138] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L141] ieee_double_shape_type ew_u; [L142] ew_u.value = (x) [L143] EXPR ew_u.parts.msw [L143] (hx) = ew_u.parts.msw [L144] EXPR ew_u.parts.lsw [L144] (lx) = ew_u.parts.lsw [L147] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L148] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L149] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L150] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L21] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L187] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0960b.c", 3, "reach_error") VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 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=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 00:31:50,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:31:50,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:31:50,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:31:50,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:31:50,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:31:50,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:31:50,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:31:50,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:31:50,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:31:50,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:31:50,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:31:50,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:31:50,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:31:50,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:31:50,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:31:50,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:31:50,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:31:50,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:31:50,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:31:50,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:31:50,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:31:50,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:31:50,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:31:50,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:31:50,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:31:50,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:31:50,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:31:50,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:31:50,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:31:50,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:31:50,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:31:50,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:31:50,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:31:50,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:31:50,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:31:50,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:31:50,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:31:50,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:31:50,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:31:50,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:31:50,932 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:31:50,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:31:50,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:31:50,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:31:50,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:31:50,959 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:31:50,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:31:50,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:31:50,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:31:50,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:31:50,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:31:50,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:31:50,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:31:50,960 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:31:50,961 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:31:50,961 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:31:50,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:31:50,961 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:31:50,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:31:50,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:31:50,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:31:50,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:31:50,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:31:50,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:31:50,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:31:50,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:31:50,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:31:50,963 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:31:50,964 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:31:50,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:31:50,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:31:50,964 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:31:50,964 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 -> 411418f84906bedc11fcfc3b7bde3a728b9fa839 [2020-10-20 00:31:51,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:31:51,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:31:51,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:31:51,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:31:51,243 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:31:51,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-10-20 00:31:51,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0d3ea39/e0f60dec51504fb594757c45211d21e5/FLAGe2bc8267b [2020-10-20 00:31:51,789 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:31:51,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0960b.c [2020-10-20 00:31:51,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0d3ea39/e0f60dec51504fb594757c45211d21e5/FLAGe2bc8267b [2020-10-20 00:31:52,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b0d3ea39/e0f60dec51504fb594757c45211d21e5 [2020-10-20 00:31:52,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:31:52,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:31:52,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:52,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:31:52,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:31:52,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3edecde5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52, skipping insertion in model container [2020-10-20 00:31:52,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:31:52,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:31:52,559 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:52,579 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:31:52,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:31:52,700 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:31:52,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52 WrapperNode [2020-10-20 00:31:52,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:31:52,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:52,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:31:52,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:31:52,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:31:52,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:31:52,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:31:52,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:31:52,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (1/1) ... [2020-10-20 00:31:52,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:31:52,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:31:52,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:31:52,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:31:52,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (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 00:31:52,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:31:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:31:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:31:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:31:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:31:52,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:31:52,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:31:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:31:52,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:32:24,189 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:32:24,190 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-10-20 00:32:24,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:24 BoogieIcfgContainer [2020-10-20 00:32:24,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:32:24,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:32:24,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:32:24,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:32:24,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:31:52" (1/3) ... [2020-10-20 00:32:24,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4162fc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:24, skipping insertion in model container [2020-10-20 00:32:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:31:52" (2/3) ... [2020-10-20 00:32:24,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4162fc24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:32:24, skipping insertion in model container [2020-10-20 00:32:24,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:24" (3/3) ... [2020-10-20 00:32:24,203 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0960b.c [2020-10-20 00:32:24,214 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:32:24,222 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:32:24,233 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:32:24,260 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:32:24,260 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:32:24,260 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:32:24,260 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:32:24,261 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:32:24,261 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:32:24,261 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:32:24,261 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:32:24,276 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-10-20 00:32:24,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 00:32:24,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:24,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:24,284 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:24,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:24,290 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-10-20 00:32:24,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:24,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171854491] [2020-10-20 00:32:24,301 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 00:32:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:32:25,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:32:25,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:32:25,379 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 00:32:25,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:32:25,384 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 00:32:25,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171854491] [2020-10-20 00:32:25,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:32:25,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:32:25,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459837994] [2020-10-20 00:32:25,393 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:32:25,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:32:25,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:32:25,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:25,411 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-10-20 00:32:25,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:32:25,446 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2020-10-20 00:32:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:32:25,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-20 00:32:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:32:25,464 INFO L225 Difference]: With dead ends: 89 [2020-10-20 00:32:25,464 INFO L226 Difference]: Without dead ends: 42 [2020-10-20 00:32:25,470 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:32:25,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-20 00:32:25,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-20 00:32:25,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-20 00:32:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-10-20 00:32:25,523 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-10-20 00:32:25,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:32:25,524 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-10-20 00:32:25,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:32:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-10-20 00:32:25,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:32:25,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:32:25,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:32:25,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:32:25,732 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:32:25,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:32:25,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-10-20 00:32:25,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:32:25,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397245603] [2020-10-20 00:32:25,738 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 00:32:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:27,044 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:32:28,219 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:32:28,359 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:32:28,360 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:32:28,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:32:28,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:32:28 BoogieIcfgContainer [2020-10-20 00:32:28,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:32:28,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:32:28,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:32:28,702 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:32:28,702 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:32:24" (3/4) ... [2020-10-20 00:32:28,705 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:32:28,822 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:32:28,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:32:28,826 INFO L168 Benchmark]: Toolchain (without parser) took 36646.73 ms. Allocated memory was 34.6 MB in the beginning and 49.8 MB in the end (delta: 15.2 MB). Free memory was 15.9 MB in the beginning and 24.0 MB in the end (delta: -8.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,832 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 43.9 kB). Peak memory consumption was 43.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 517.87 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 15.1 MB in the beginning and 18.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.18 ms. Allocated memory is still 43.0 MB. Free memory was 18.4 MB in the beginning and 15.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,842 INFO L168 Benchmark]: Boogie Preprocessor took 77.43 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 15.8 MB in the beginning and 25.7 MB in the end (delta: -10.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,846 INFO L168 Benchmark]: RCFGBuilder took 31352.03 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 25.7 MB in the beginning and 23.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,848 INFO L168 Benchmark]: TraceAbstraction took 4506.89 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 23.6 MB in the beginning and 29.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,849 INFO L168 Benchmark]: Witness Printer took 121.19 ms. Allocated memory is still 49.8 MB. Free memory was 29.0 MB in the beginning and 24.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:32:28,852 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 10.8 MB in the beginning and 10.8 MB in the end (delta: 43.9 kB). Peak memory consumption was 43.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 517.87 ms. Allocated memory was 34.6 MB in the beginning and 43.0 MB in the end (delta: 8.4 MB). Free memory was 15.1 MB in the beginning and 18.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 59.18 ms. Allocated memory is still 43.0 MB. Free memory was 18.4 MB in the beginning and 15.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 77.43 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 15.8 MB in the beginning and 25.7 MB in the end (delta: -10.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 31352.03 ms. Allocated memory was 45.1 MB in the beginning and 46.7 MB in the end (delta: 1.6 MB). Free memory was 25.7 MB in the beginning and 23.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 16.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4506.89 ms. Allocated memory was 46.7 MB in the beginning and 49.8 MB in the end (delta: 3.1 MB). Free memory was 23.6 MB in the beginning and 29.3 MB in the end (delta: -5.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 14.3 GB. * Witness Printer took 121.19 ms. Allocated memory is still 49.8 MB. Free memory was 29.0 MB in the beginning and 24.0 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. 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: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L128-L131] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L133] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L183] double x = -0.0; [L136] double y, z; [L137] __int32_t i, k, hx; [L138] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L141] ieee_double_shape_type ew_u; [L142] ew_u.value = (x) [L143] EXPR ew_u.parts.msw [L143] (hx) = ew_u.parts.msw [L144] EXPR ew_u.parts.lsw [L144] (lx) = ew_u.parts.lsw [L147] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L148] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L149] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L150] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] double res = __ieee754_log10(x); [L21] __int32_t hx, lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L187] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0960b.c", 3, "reach_error") VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 2.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...