./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_0730a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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_0730a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-8bd4bc6 [2020-07-28 17:38:15,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:38:15,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:38:15,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:38:15,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:38:15,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:38:15,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:38:15,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:38:15,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:38:15,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:38:15,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:38:15,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:38:15,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:38:15,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:38:15,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:38:15,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:38:15,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:38:15,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:38:15,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:38:15,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:38:15,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:38:15,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:38:15,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:38:15,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:38:15,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:38:15,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:38:15,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:38:15,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:38:15,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:38:15,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:38:15,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:38:15,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:38:15,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:38:15,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:38:15,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:38:15,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:38:15,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:38:15,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:38:15,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:38:15,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:38:15,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:38:15,520 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:38:15,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:38:15,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:38:15,561 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:38:15,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:38:15,564 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:38:15,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:38:15,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:38:15,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:38:15,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:38:15,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:38:15,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:38:15,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:38:15,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:38:15,568 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:38:15,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:38:15,568 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:38:15,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:38:15,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:38:15,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:38:15,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:38:15,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:38:15,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:38:15,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:38:15,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:38:15,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:38:15,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:38:15,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:38:15,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:38:15,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:38:15,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 [2020-07-28 17:38:15,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:38:15,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:38:15,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:38:15,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:38:15,913 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:38:15,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2020-07-28 17:38:15,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704153d03/5da79463d5354a6c902e5d92265b0fb9/FLAG650c9d544 [2020-07-28 17:38:16,515 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:38:16,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2020-07-28 17:38:16,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704153d03/5da79463d5354a6c902e5d92265b0fb9/FLAG650c9d544 [2020-07-28 17:38:16,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/704153d03/5da79463d5354a6c902e5d92265b0fb9 [2020-07-28 17:38:16,879 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:38:16,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:38:16,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:38:16,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:38:16,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:38:16,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:38:16" (1/1) ... [2020-07-28 17:38:16,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d50db84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:16, skipping insertion in model container [2020-07-28 17:38:16,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:38:16" (1/1) ... [2020-07-28 17:38:16,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:38:16,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:38:17,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:38:17,448 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:38:17,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:38:17,565 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:38:17,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17 WrapperNode [2020-07-28 17:38:17,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:38:17,567 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:38:17,567 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:38:17,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:38:17,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:38:17,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:38:17,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:38:17,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:38:17,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (1/1) ... [2020-07-28 17:38:17,728 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:38:17,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:38:17,729 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:38:17,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:38:17,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (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 [2020-07-28 17:38:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:38:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:38:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:38:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:38:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:38:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:38:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:38:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:38:18,548 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:38:18,548 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-07-28 17:38:18,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:38:18 BoogieIcfgContainer [2020-07-28 17:38:18,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:38:18,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:38:18,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:38:18,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:38:18,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:38:16" (1/3) ... [2020-07-28 17:38:18,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7236c93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:38:18, skipping insertion in model container [2020-07-28 17:38:18,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:17" (2/3) ... [2020-07-28 17:38:18,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7236c93a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:38:18, skipping insertion in model container [2020-07-28 17:38:18,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:38:18" (3/3) ... [2020-07-28 17:38:18,564 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2020-07-28 17:38:18,576 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:38:18,585 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:38:18,602 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:38:18,629 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:38:18,629 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:38:18,630 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:38:18,630 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:38:18,630 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:38:18,630 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:38:18,631 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:38:18,631 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:38:18,650 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-07-28 17:38:18,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:38:18,658 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:38:18,660 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:38:18,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:38:18,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:38:18,668 INFO L82 PathProgramCache]: Analyzing trace with hash -898135563, now seen corresponding path program 1 times [2020-07-28 17:38:18,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:38:18,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436201944] [2020-07-28 17:38:18,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:38:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:38:18,843 INFO L280 TraceCheckUtils]: 0: Hoare triple {55#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-300; {55#true} is VALID [2020-07-28 17:38:18,844 INFO L280 TraceCheckUtils]: 1: Hoare triple {55#true} havoc main_#res;havoc main_#t~ret11, main_#t~ret12, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticDOUBLEoperation(1.0, 0.0);__ieee754_sqrt_#in~x := main_~x~0;havoc __ieee754_sqrt_#res;havoc __ieee754_sqrt_#t~mem0, __ieee754_sqrt_#t~union1, __ieee754_sqrt_#t~mem2, __ieee754_sqrt_#t~union3, __ieee754_sqrt_~#ew_u~0.base, __ieee754_sqrt_~#ew_u~0.offset, __ieee754_sqrt_#t~post4, __ieee754_sqrt_#t~mem5, __ieee754_sqrt_#t~union6.lsw, __ieee754_sqrt_#t~union6.msw, __ieee754_sqrt_~#iw_u~0.base, __ieee754_sqrt_~#iw_u~0.offset, __ieee754_sqrt_~x, __ieee754_sqrt_~z~0, __ieee754_sqrt_~sign~0, __ieee754_sqrt_~r~0, __ieee754_sqrt_~t1~0, __ieee754_sqrt_~s1~0, __ieee754_sqrt_~ix1~0, __ieee754_sqrt_~q1~0, __ieee754_sqrt_~ix0~0, __ieee754_sqrt_~s0~0, __ieee754_sqrt_~q~0, __ieee754_sqrt_~m~0, __ieee754_sqrt_~t~0, __ieee754_sqrt_~i~0;__ieee754_sqrt_~x := __ieee754_sqrt_#in~x;havoc __ieee754_sqrt_~z~0;__ieee754_sqrt_~sign~0 := -2147483648;havoc __ieee754_sqrt_~r~0;havoc __ieee754_sqrt_~t1~0;havoc __ieee754_sqrt_~s1~0;havoc __ieee754_sqrt_~ix1~0;havoc __ieee754_sqrt_~q1~0;havoc __ieee754_sqrt_~ix0~0;havoc __ieee754_sqrt_~s0~0;havoc __ieee754_sqrt_~q~0;havoc __ieee754_sqrt_~m~0;havoc __ieee754_sqrt_~t~0;havoc __ieee754_sqrt_~i~0; {55#true} is VALID [2020-07-28 17:38:18,848 INFO L280 TraceCheckUtils]: 2: Hoare triple {55#true} assume !true; {56#false} is VALID [2020-07-28 17:38:18,848 INFO L280 TraceCheckUtils]: 3: Hoare triple {56#false} assume 2146435072 == ~bitwiseAnd(__ieee754_sqrt_~ix0~0, 2146435072);__ieee754_sqrt_#res := ~someBinaryArithmeticDOUBLEoperation(~someBinaryArithmeticDOUBLEoperation(__ieee754_sqrt_~x, __ieee754_sqrt_~x), __ieee754_sqrt_~x); {56#false} is VALID [2020-07-28 17:38:18,849 INFO L280 TraceCheckUtils]: 4: Hoare triple {56#false} main_#t~ret11 := __ieee754_sqrt_#res;main_~res~0 := main_#t~ret11;havoc main_#t~ret11;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem7, isinf_double_#t~union8, isinf_double_#t~mem9, isinf_double_#t~union10, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {56#false} is VALID [2020-07-28 17:38:18,849 INFO L280 TraceCheckUtils]: 5: Hoare triple {56#false} assume !true; {56#false} is VALID [2020-07-28 17:38:18,849 INFO L280 TraceCheckUtils]: 6: Hoare triple {56#false} isinf_double_~hx~0 := ~bitwiseAnd(isinf_double_~hx~0, 2147483647);isinf_double_~hx~0 := (if ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, ~bitwiseOr(isinf_double_~lx~0, -isinf_double_~lx~0) / 2147483648) % 4294967296 % 4294967296 - 4294967296);isinf_double_~hx~0 := 2146435072 - isinf_double_~hx~0;isinf_double_#res := 1 - (if ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 else ~bitwiseOr(isinf_double_~hx~0, -isinf_double_~hx~0) / 2147483648 % 4294967296 % 4294967296 - 4294967296); {56#false} is VALID [2020-07-28 17:38:18,850 INFO L280 TraceCheckUtils]: 7: Hoare triple {56#false} main_#t~ret12 := isinf_double_#res;assume -2147483648 <= main_#t~ret12 && main_#t~ret12 <= 2147483647; {56#false} is VALID [2020-07-28 17:38:18,851 INFO L280 TraceCheckUtils]: 8: Hoare triple {56#false} assume 0 == main_#t~ret12;havoc main_#t~ret12; {56#false} is VALID [2020-07-28 17:38:18,851 INFO L280 TraceCheckUtils]: 9: Hoare triple {56#false} assume !false; {56#false} is VALID [2020-07-28 17:38:18,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:38:18,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436201944] [2020-07-28 17:38:18,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:38:18,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:38:18,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776331362] [2020-07-28 17:38:18,864 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:38:18,866 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:38:18,870 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:38:18,892 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:38:18,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:38:18,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:38:18,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:38:18,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:38:18,906 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-07-28 17:38:19,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:38:19,047 INFO L93 Difference]: Finished difference Result 102 states and 162 transitions. [2020-07-28 17:38:19,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:38:19,048 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:38:19,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:38:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:38:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2020-07-28 17:38:19,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:38:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2020-07-28 17:38:19,067 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 162 transitions. [2020-07-28 17:38:19,351 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:38:19,365 INFO L225 Difference]: With dead ends: 102 [2020-07-28 17:38:19,366 INFO L226 Difference]: Without dead ends: 49 [2020-07-28 17:38:19,370 INFO L675 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 [2020-07-28 17:38:19,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-28 17:38:19,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-07-28 17:38:19,414 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:38:19,415 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:19,415 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:19,415 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:38:19,421 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2020-07-28 17:38:19,421 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2020-07-28 17:38:19,422 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:38:19,422 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:38:19,423 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:19,423 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:38:19,428 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2020-07-28 17:38:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2020-07-28 17:38:19,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:38:19,429 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:38:19,430 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:38:19,430 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:38:19,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-28 17:38:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2020-07-28 17:38:19,436 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 10 [2020-07-28 17:38:19,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:38:19,436 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2020-07-28 17:38:19,437 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:38:19,437 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2020-07-28 17:38:19,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:38:19,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:38:19,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:38:19,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:38:19,439 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:38:19,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:38:19,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1657561708, now seen corresponding path program 1 times [2020-07-28 17:38:19,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:38:19,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306414991] [2020-07-28 17:38:19,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:38:19,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:38:19,604 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.generateLinVar(LinArSolve.java:275) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.createEquality(LinArSolve.java:1974) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createLAEquality(EqualityProxy.java:83) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createAtom(EqualityProxy.java:165) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.getLiteral(EqualityProxy.java:186) at de.uni_freiburg.informatik.ultimate.smtinterpol.convert.EqualityProxy.createCCEquality(EqualityProxy.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.mbtc(LinArSolve.java:1891) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.LinArSolve.computeConflictClause(LinArSolve.java:664) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.checkConsistency(DPLLEngine.java:1010) at de.uni_freiburg.informatik.ultimate.smtinterpol.dpll.DPLLEngine.solve(DPLLEngine.java:1157) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol$CheckType$1.check(SMTInterpol.java:117) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSatAssuming(SMTInterpol.java:494) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.checkSat(SMTInterpol.java:446) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:206) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-28 17:38:19,612 INFO L168 Benchmark]: Toolchain (without parser) took 2730.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 956.2 MB in the beginning and 1.0 GB in the end (delta: -60.5 MB). Peak memory consumption was 97.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:19,613 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:38:19,614 INFO L168 Benchmark]: CACSL2BoogieTranslator took 678.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -191.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:19,615 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:19,616 INFO L168 Benchmark]: Boogie Preprocessor took 80.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:38:19,617 INFO L168 Benchmark]: RCFGBuilder took 824.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:19,618 INFO L168 Benchmark]: TraceAbstraction took 1054.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:19,622 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 678.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -191.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 824.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.1 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1054.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 73.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.theory.linar.TableauxRow.(TableauxRow.java:45) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:38:21,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:38:21,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:38:21,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:38:21,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:38:21,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:38:21,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:38:21,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:38:21,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:38:21,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:38:21,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:38:21,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:38:21,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:38:21,687 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:38:21,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:38:21,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:38:21,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:38:21,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:38:21,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:38:21,696 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:38:21,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:38:21,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:38:21,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:38:21,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:38:21,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:38:21,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:38:21,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:38:21,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:38:21,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:38:21,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:38:21,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:38:21,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:38:21,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:38:21,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:38:21,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:38:21,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:38:21,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:38:21,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:38:21,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:38:21,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:38:21,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:38:21,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:38:21,732 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:38:21,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:38:21,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:38:21,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:38:21,735 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:38:21,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:38:21,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:38:21,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:38:21,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:38:21,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:38:21,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:38:21,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:38:21,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:38:21,737 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:38:21,738 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:38:21,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:38:21,738 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:38:21,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:38:21,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:38:21,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:38:21,739 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:38:21,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:38:21,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:38:21,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:38:21,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:38:21,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:38:21,741 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:38:21,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:38:21,742 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:38:21,742 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:38:21,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:38:21,742 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 [2020-07-28 17:38:22,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:38:22,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:38:22,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:38:22,056 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:38:22,056 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:38:22,057 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2020-07-28 17:38:22,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a281548bd/5dc51eec279e49c9b25c7e1895b98778/FLAG669b7b460 [2020-07-28 17:38:22,645 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:38:22,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2020-07-28 17:38:22,653 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a281548bd/5dc51eec279e49c9b25c7e1895b98778/FLAG669b7b460 [2020-07-28 17:38:22,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a281548bd/5dc51eec279e49c9b25c7e1895b98778 [2020-07-28 17:38:22,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:38:23,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:38:23,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:38:23,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:38:23,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:38:23,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:38:22" (1/1) ... [2020-07-28 17:38:23,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e2c6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23, skipping insertion in model container [2020-07-28 17:38:23,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:38:22" (1/1) ... [2020-07-28 17:38:23,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:38:23,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:38:23,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:38:23,371 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:38:23,527 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:38:23,558 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:38:23,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23 WrapperNode [2020-07-28 17:38:23,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:38:23,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:38:23,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:38:23,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:38:23,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:38:23,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:38:23,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:38:23,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:38:23,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (1/1) ... [2020-07-28 17:38:23,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:38:23,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:38:23,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:38:23,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:38:23,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (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 [2020-07-28 17:38:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-07-28 17:38:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-07-28 17:38:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:38:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:38:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:38:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:38:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:38:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:38:27,725 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:38:27,725 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-07-28 17:38:27,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:38:27 BoogieIcfgContainer [2020-07-28 17:38:27,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:38:27,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:38:27,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:38:27,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:38:27,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:38:22" (1/3) ... [2020-07-28 17:38:27,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90420c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:38:27, skipping insertion in model container [2020-07-28 17:38:27,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:38:23" (2/3) ... [2020-07-28 17:38:27,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90420c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:38:27, skipping insertion in model container [2020-07-28 17:38:27,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:38:27" (3/3) ... [2020-07-28 17:38:27,739 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2020-07-28 17:38:27,750 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:38:27,759 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:38:27,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:38:27,800 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:38:27,800 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:38:27,801 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:38:27,801 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:38:27,801 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:38:27,802 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:38:27,802 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:38:27,802 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:38:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-07-28 17:38:27,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:38:27,827 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:38:27,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:38:27,829 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:38:27,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:38:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash -898135563, now seen corresponding path program 1 times [2020-07-28 17:38:27,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:38:27,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2079645682] [2020-07-28 17:38:27,848 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 [2020-07-28 17:38:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:38:28,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:38:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:38:28,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:38:28,292 INFO L280 TraceCheckUtils]: 0: Hoare triple {55#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300); {55#true} is VALID [2020-07-28 17:38:28,293 INFO L280 TraceCheckUtils]: 1: Hoare triple {55#true} havoc main_#res;havoc main_#t~ret11, main_#t~ret12, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_sqrt_#in~x := main_~x~0;havoc __ieee754_sqrt_#res;havoc __ieee754_sqrt_#t~mem0, __ieee754_sqrt_#t~union1, __ieee754_sqrt_#t~mem2, __ieee754_sqrt_#t~union3, __ieee754_sqrt_~#ew_u~0.base, __ieee754_sqrt_~#ew_u~0.offset, __ieee754_sqrt_#t~post4, __ieee754_sqrt_#t~mem5, __ieee754_sqrt_#t~union6.lsw, __ieee754_sqrt_#t~union6.msw, __ieee754_sqrt_~#iw_u~0.base, __ieee754_sqrt_~#iw_u~0.offset, __ieee754_sqrt_~x, __ieee754_sqrt_~z~0, __ieee754_sqrt_~sign~0, __ieee754_sqrt_~r~0, __ieee754_sqrt_~t1~0, __ieee754_sqrt_~s1~0, __ieee754_sqrt_~ix1~0, __ieee754_sqrt_~q1~0, __ieee754_sqrt_~ix0~0, __ieee754_sqrt_~s0~0, __ieee754_sqrt_~q~0, __ieee754_sqrt_~m~0, __ieee754_sqrt_~t~0, __ieee754_sqrt_~i~0;__ieee754_sqrt_~x := __ieee754_sqrt_#in~x;havoc __ieee754_sqrt_~z~0;__ieee754_sqrt_~sign~0 := 2147483648bv32;havoc __ieee754_sqrt_~r~0;havoc __ieee754_sqrt_~t1~0;havoc __ieee754_sqrt_~s1~0;havoc __ieee754_sqrt_~ix1~0;havoc __ieee754_sqrt_~q1~0;havoc __ieee754_sqrt_~ix0~0;havoc __ieee754_sqrt_~s0~0;havoc __ieee754_sqrt_~q~0;havoc __ieee754_sqrt_~m~0;havoc __ieee754_sqrt_~t~0;havoc __ieee754_sqrt_~i~0; {55#true} is VALID [2020-07-28 17:38:28,295 INFO L280 TraceCheckUtils]: 2: Hoare triple {55#true} assume !true; {56#false} is VALID [2020-07-28 17:38:28,296 INFO L280 TraceCheckUtils]: 3: Hoare triple {56#false} assume 2146435072bv32 == ~bvand32(2146435072bv32, __ieee754_sqrt_~ix0~0);__ieee754_sqrt_#res := ~fp.add~DOUBLE(currentRoundingMode, ~fp.mul~DOUBLE(currentRoundingMode, __ieee754_sqrt_~x, __ieee754_sqrt_~x), __ieee754_sqrt_~x); {56#false} is VALID [2020-07-28 17:38:28,296 INFO L280 TraceCheckUtils]: 4: Hoare triple {56#false} main_#t~ret11 := __ieee754_sqrt_#res;main_~res~0 := main_#t~ret11;havoc main_#t~ret11;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem7, isinf_double_#t~union8, isinf_double_#t~mem9, isinf_double_#t~union10, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {56#false} is VALID [2020-07-28 17:38:28,296 INFO L280 TraceCheckUtils]: 5: Hoare triple {56#false} assume !true; {56#false} is VALID [2020-07-28 17:38:28,297 INFO L280 TraceCheckUtils]: 6: Hoare triple {56#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {56#false} is VALID [2020-07-28 17:38:28,298 INFO L280 TraceCheckUtils]: 7: Hoare triple {56#false} main_#t~ret12 := isinf_double_#res; {56#false} is VALID [2020-07-28 17:38:28,298 INFO L280 TraceCheckUtils]: 8: Hoare triple {56#false} assume 0bv32 == main_#t~ret12;havoc main_#t~ret12; {56#false} is VALID [2020-07-28 17:38:28,298 INFO L280 TraceCheckUtils]: 9: Hoare triple {56#false} assume !false; {56#false} is VALID [2020-07-28 17:38:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:38:28,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:38:28,322 INFO L280 TraceCheckUtils]: 9: Hoare triple {56#false} assume !false; {56#false} is VALID [2020-07-28 17:38:28,322 INFO L280 TraceCheckUtils]: 8: Hoare triple {56#false} assume 0bv32 == main_#t~ret12;havoc main_#t~ret12; {56#false} is VALID [2020-07-28 17:38:28,323 INFO L280 TraceCheckUtils]: 7: Hoare triple {56#false} main_#t~ret12 := isinf_double_#res; {56#false} is VALID [2020-07-28 17:38:28,323 INFO L280 TraceCheckUtils]: 6: Hoare triple {56#false} isinf_double_~hx~0 := ~bvand32(2147483647bv32, isinf_double_~hx~0);isinf_double_~hx~0 := ~bvor32(isinf_double_~hx~0, ~bvlshr32(~bvor32(isinf_double_~lx~0, ~bvneg32(isinf_double_~lx~0)), 31bv32));isinf_double_~hx~0 := ~bvsub32(2146435072bv32, isinf_double_~hx~0);isinf_double_#res := ~bvsub32(1bv32, ~bvlshr32(~bvor32(isinf_double_~hx~0, ~bvneg32(isinf_double_~hx~0)), 31bv32)); {56#false} is VALID [2020-07-28 17:38:28,323 INFO L280 TraceCheckUtils]: 5: Hoare triple {56#false} assume !true; {56#false} is VALID [2020-07-28 17:38:28,324 INFO L280 TraceCheckUtils]: 4: Hoare triple {56#false} main_#t~ret11 := __ieee754_sqrt_#res;main_~res~0 := main_#t~ret11;havoc main_#t~ret11;isinf_double_#in~x := main_~res~0;havoc isinf_double_#res;havoc isinf_double_#t~mem7, isinf_double_#t~union8, isinf_double_#t~mem9, isinf_double_#t~union10, isinf_double_~#ew_u~1.base, isinf_double_~#ew_u~1.offset, isinf_double_~x, isinf_double_~hx~0, isinf_double_~lx~0;isinf_double_~x := isinf_double_#in~x;havoc isinf_double_~hx~0;havoc isinf_double_~lx~0; {56#false} is VALID [2020-07-28 17:38:28,324 INFO L280 TraceCheckUtils]: 3: Hoare triple {56#false} assume 2146435072bv32 == ~bvand32(2146435072bv32, __ieee754_sqrt_~ix0~0);__ieee754_sqrt_#res := ~fp.add~DOUBLE(currentRoundingMode, ~fp.mul~DOUBLE(currentRoundingMode, __ieee754_sqrt_~x, __ieee754_sqrt_~x), __ieee754_sqrt_~x); {56#false} is VALID [2020-07-28 17:38:28,326 INFO L280 TraceCheckUtils]: 2: Hoare triple {55#true} assume !true; {56#false} is VALID [2020-07-28 17:38:28,326 INFO L280 TraceCheckUtils]: 1: Hoare triple {55#true} havoc main_#res;havoc main_#t~ret11, main_#t~ret12, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0), ~Pluszero~DOUBLE());__ieee754_sqrt_#in~x := main_~x~0;havoc __ieee754_sqrt_#res;havoc __ieee754_sqrt_#t~mem0, __ieee754_sqrt_#t~union1, __ieee754_sqrt_#t~mem2, __ieee754_sqrt_#t~union3, __ieee754_sqrt_~#ew_u~0.base, __ieee754_sqrt_~#ew_u~0.offset, __ieee754_sqrt_#t~post4, __ieee754_sqrt_#t~mem5, __ieee754_sqrt_#t~union6.lsw, __ieee754_sqrt_#t~union6.msw, __ieee754_sqrt_~#iw_u~0.base, __ieee754_sqrt_~#iw_u~0.offset, __ieee754_sqrt_~x, __ieee754_sqrt_~z~0, __ieee754_sqrt_~sign~0, __ieee754_sqrt_~r~0, __ieee754_sqrt_~t1~0, __ieee754_sqrt_~s1~0, __ieee754_sqrt_~ix1~0, __ieee754_sqrt_~q1~0, __ieee754_sqrt_~ix0~0, __ieee754_sqrt_~s0~0, __ieee754_sqrt_~q~0, __ieee754_sqrt_~m~0, __ieee754_sqrt_~t~0, __ieee754_sqrt_~i~0;__ieee754_sqrt_~x := __ieee754_sqrt_#in~x;havoc __ieee754_sqrt_~z~0;__ieee754_sqrt_~sign~0 := 2147483648bv32;havoc __ieee754_sqrt_~r~0;havoc __ieee754_sqrt_~t1~0;havoc __ieee754_sqrt_~s1~0;havoc __ieee754_sqrt_~ix1~0;havoc __ieee754_sqrt_~q1~0;havoc __ieee754_sqrt_~ix0~0;havoc __ieee754_sqrt_~s0~0;havoc __ieee754_sqrt_~q~0;havoc __ieee754_sqrt_~m~0;havoc __ieee754_sqrt_~t~0;havoc __ieee754_sqrt_~i~0; {55#true} is VALID [2020-07-28 17:38:28,327 INFO L280 TraceCheckUtils]: 0: Hoare triple {55#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0);~tiny_sqrt~0 := ~to_fp~DOUBLE(currentRoundingMode, 1.0E-300); {55#true} is VALID [2020-07-28 17:38:28,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:38:28,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2079645682] [2020-07-28 17:38:28,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:38:28,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:38:28,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783665382] [2020-07-28 17:38:28,339 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:38:28,342 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:38:28,346 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:38:28,525 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:38:28,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:38:28,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:38:28,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:38:28,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:38:28,538 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2020-07-28 17:38:32,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:38:32,825 INFO L93 Difference]: Finished difference Result 102 states and 162 transitions. [2020-07-28 17:38:32,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:38:32,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:38:32,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:38:32,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:38:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2020-07-28 17:38:32,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:38:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 162 transitions. [2020-07-28 17:38:32,845 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 162 transitions. [2020-07-28 17:38:35,775 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:38:35,808 INFO L225 Difference]: With dead ends: 102 [2020-07-28 17:38:35,808 INFO L226 Difference]: Without dead ends: 49 [2020-07-28 17:38:35,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:38:35,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-07-28 17:38:35,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-07-28 17:38:35,850 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:38:35,850 INFO L82 GeneralOperation]: Start isEquivalent. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:35,851 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:35,851 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:35,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:38:35,857 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2020-07-28 17:38:35,858 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2020-07-28 17:38:35,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:38:35,859 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:38:35,859 INFO L74 IsIncluded]: Start isIncluded. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:35,859 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 49 states. [2020-07-28 17:38:35,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:38:35,864 INFO L93 Difference]: Finished difference Result 49 states and 68 transitions. [2020-07-28 17:38:35,865 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2020-07-28 17:38:35,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:38:35,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:38:35,866 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:38:35,867 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:38:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-28 17:38:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2020-07-28 17:38:35,872 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 10 [2020-07-28 17:38:35,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:38:35,873 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2020-07-28 17:38:35,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:38:35,874 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2020-07-28 17:38:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 17:38:35,875 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:38:35,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:38:36,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:38:36,090 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:38:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:38:36,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1657561708, now seen corresponding path program 1 times [2020-07-28 17:38:36,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:38:36,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736111442] [2020-07-28 17:38:36,093 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 [2020-07-28 17:38:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:38:36,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:38:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:38:36,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:38:36,991 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-07-28 17:38:36,992 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:38:37,194 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:38:37,237 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:38:37,237 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:38:37,237 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L28-2 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L28-3 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L129 has no Hoare annotation [2020-07-28 17:38:37,238 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L39 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L135-2 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L135-2 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L39-2 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L135-1 has no Hoare annotation [2020-07-28 17:38:37,239 WARN L170 areAnnotationChecker]: L135-1 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L135-3 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L47 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L144 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:38:37,240 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L47-2 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L159 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L159 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L48-3 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:38:37,241 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L160 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L164 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L53-3 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: L61-2 has no Hoare annotation [2020-07-28 17:38:37,242 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L53-4 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L53-2 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L72-2 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L72-2 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L72-2 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L72-3 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:38:37,243 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L85-2 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L85-2 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L85-2 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L74-2 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L85-3 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L85-3 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L88 has no Hoare annotation [2020-07-28 17:38:37,244 WARN L170 areAnnotationChecker]: L88 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L103 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L88-2 has no Hoare annotation [2020-07-28 17:38:37,245 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2020-07-28 17:38:37,246 WARN L170 areAnnotationChecker]: L107 has no Hoare annotation [2020-07-28 17:38:37,246 WARN L170 areAnnotationChecker]: L120 has no Hoare annotation [2020-07-28 17:38:37,246 WARN L170 areAnnotationChecker]: L120 has no Hoare annotation [2020-07-28 17:38:37,246 WARN L170 areAnnotationChecker]: L90-2 has no Hoare annotation [2020-07-28 17:38:37,246 WARN L170 areAnnotationChecker]: L110 has no Hoare annotation [2020-07-28 17:38:37,246 WARN L170 areAnnotationChecker]: L110 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L120-2 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L93 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L111 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L111 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L123-2 has no Hoare annotation [2020-07-28 17:38:37,247 WARN L170 areAnnotationChecker]: L123-2 has no Hoare annotation [2020-07-28 17:38:37,248 WARN L170 areAnnotationChecker]: L93-2 has no Hoare annotation [2020-07-28 17:38:37,248 WARN L170 areAnnotationChecker]: L111-2 has no Hoare annotation [2020-07-28 17:38:37,248 WARN L170 areAnnotationChecker]: L123-1 has no Hoare annotation [2020-07-28 17:38:37,248 WARN L170 areAnnotationChecker]: L123-1 has no Hoare annotation [2020-07-28 17:38:37,248 WARN L170 areAnnotationChecker]: L123-3 has no Hoare annotation [2020-07-28 17:38:37,248 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:38:37,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:38:37 BoogieIcfgContainer [2020-07-28 17:38:37,252 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:38:37,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:38:37,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:38:37,252 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:38:37,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:38:27" (3/4) ... [2020-07-28 17:38:37,256 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-07-28 17:38:37,326 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:38:37,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:38:37,330 INFO L168 Benchmark]: Toolchain (without parser) took 14328.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 958.9 MB in the beginning and 967.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 131.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:37,330 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:38:37,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 555.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:37,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:37,332 INFO L168 Benchmark]: Boogie Preprocessor took 50.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:37,333 INFO L168 Benchmark]: RCFGBuilder took 4047.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:37,334 INFO L168 Benchmark]: TraceAbstraction took 9520.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.7 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:38:37,334 INFO L168 Benchmark]: Witness Printer took 74.53 ms. Allocated memory is still 1.2 GB. Free memory is still 967.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:38:37,338 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 555.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 958.9 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4047.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.0 MB). Peak memory consumption was 44.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9520.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.7 MB in the end (delta: 110.6 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. * Witness Printer took 74.53 ms. Allocated memory is still 1.2 GB. Free memory is still 967.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 160]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L155] double x = 1.0 / 0.0; [L23] double z; [L24] __int32_t sign = 0x80000000; [L25] __uint32_t r, t1, s1, ix1, q1; [L26] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (ix0) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (ix1) = ew_u.parts.lsw [L35] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L36] return x * x + x; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L156] double res = __ieee754_sqrt(x); [L134] __int32_t hx, lx; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L136] ieee_double_shape_type ew_u; [L137] ew_u.value = (x) [L138] EXPR ew_u.parts.msw [L138] (hx) = ew_u.parts.msw [L139] EXPR ew_u.parts.lsw [L139] (lx) = ew_u.parts.lsw [L141] hx &= 0x7fffffff [L142] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L143] hx = 0x7ff00000 - hx [L144] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L159] COND TRUE !isinf_double(res) [L160] __VERIFIER_error() VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 0.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 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! Received shutdown request...