./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 20:14:59,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:14:59,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:14:59,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:14:59,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:14:59,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:14:59,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:14:59,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:14:59,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:14:59,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:14:59,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:14:59,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:14:59,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:14:59,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:14:59,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:14:59,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:14:59,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:14:59,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:14:59,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:14:59,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:14:59,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:14:59,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:14:59,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:14:59,731 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:14:59,733 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:14:59,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:14:59,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:14:59,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:14:59,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:14:59,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:14:59,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:14:59,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:14:59,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:14:59,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:14:59,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:14:59,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:14:59,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:14:59,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:14:59,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:14:59,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:14:59,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:14:59,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:14:59,754 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:14:59,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:14:59,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:14:59,755 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:14:59,755 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:14:59,755 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:14:59,755 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:14:59,756 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:14:59,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:14:59,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:14:59,756 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:14:59,756 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:14:59,757 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:14:59,757 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:14:59,757 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:14:59,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:14:59,758 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:14:59,758 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:14:59,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:14:59,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:14:59,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:14:59,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:14:59,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:14:59,759 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:14:59,759 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:14:59,759 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:14:59,759 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:14:59,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:14:59,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:14:59,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:14:59,760 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:14:59,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:14:59,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:14:59,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:14:59,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:14:59,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:14:59,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:14:59,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:14:59,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:14:59,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:14:59,762 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan 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 -> Taipan 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 -> 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a [2019-12-07 20:14:59,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:14:59,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:14:59,881 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:14:59,882 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:14:59,882 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:14:59,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-12-07 20:14:59,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/726c0b313/3d11a7609e924e819f7cf6ae7637516a/FLAGf1e669eee [2019-12-07 20:15:00,248 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:15:00,248 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-12-07 20:15:00,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/726c0b313/3d11a7609e924e819f7cf6ae7637516a/FLAGf1e669eee [2019-12-07 20:15:00,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/726c0b313/3d11a7609e924e819f7cf6ae7637516a [2019-12-07 20:15:00,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:15:00,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:15:00,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:15:00,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:15:00,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:15:00,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161812df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00, skipping insertion in model container [2019-12-07 20:15:00,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:15:00,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:15:00,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:15:00,455 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:15:00,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:15:00,498 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:15:00,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00 WrapperNode [2019-12-07 20:15:00,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:15:00,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:15:00,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:15:00,499 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:15:00,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:15:00,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:15:00,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:15:00,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:15:00,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... [2019-12-07 20:15:00,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:15:00,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:15:00,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:15:00,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:15:00,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:15:00,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:15:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 20:15:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 20:15:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 20:15:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:15:00,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:15:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 20:15:00,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 20:15:00,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:15:00,996 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:15:00,996 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 20:15:00,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:15:00 BoogieIcfgContainer [2019-12-07 20:15:00,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:15:00,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:15:00,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:15:01,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:15:01,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:15:00" (1/3) ... [2019-12-07 20:15:01,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4967a6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:15:01, skipping insertion in model container [2019-12-07 20:15:01,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:00" (2/3) ... [2019-12-07 20:15:01,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4967a6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:15:01, skipping insertion in model container [2019-12-07 20:15:01,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:15:00" (3/3) ... [2019-12-07 20:15:01,002 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-12-07 20:15:01,008 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:15:01,012 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:15:01,020 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:15:01,035 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:15:01,035 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:15:01,035 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:15:01,035 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:15:01,035 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:15:01,035 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:15:01,035 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:15:01,035 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:15:01,045 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-12-07 20:15:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 20:15:01,048 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:15:01,049 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:15:01,049 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:15:01,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:15:01,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1459358806, now seen corresponding path program 1 times [2019-12-07 20:15:01,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:15:01,059 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498891523] [2019-12-07 20:15:01,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:15:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:15:01,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:15:01,137 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498891523] [2019-12-07 20:15:01,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:15:01,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 20:15:01,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17657334] [2019-12-07 20:15:01,141 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:15:01,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:15:01,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:15:01,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:15:01,151 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-12-07 20:15:01,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:15:01,165 INFO L93 Difference]: Finished difference Result 77 states and 131 transitions. [2019-12-07 20:15:01,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:15:01,166 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 20:15:01,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:15:01,172 INFO L225 Difference]: With dead ends: 77 [2019-12-07 20:15:01,172 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 20:15:01,174 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:15:01,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 20:15:01,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-12-07 20:15:01,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-12-07 20:15:01,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2019-12-07 20:15:01,198 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2019-12-07 20:15:01,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:15:01,198 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2019-12-07 20:15:01,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:15:01,198 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2019-12-07 20:15:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 20:15:01,199 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:15:01,199 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:15:01,199 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:15:01,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:15:01,199 INFO L82 PathProgramCache]: Analyzing trace with hash -724917447, now seen corresponding path program 1 times [2019-12-07 20:15:01,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:15:01,200 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748348753] [2019-12-07 20:15:01,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:15:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:15:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:15:01,287 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 20:15:01,287 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:15:01,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:15:01 BoogieIcfgContainer [2019-12-07 20:15:01,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:15:01,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:15:01,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:15:01,308 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:15:01,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:15:00" (3/4) ... [2019-12-07 20:15:01,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 20:15:01,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:15:01,313 INFO L168 Benchmark]: Toolchain (without parser) took 1047.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 939.9 MB in the beginning and 998.0 MB in the end (delta: -58.1 MB). Peak memory consumption was 38.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:01,313 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:15:01,314 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:01,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:15:01,314 INFO L168 Benchmark]: Boogie Preprocessor took 28.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:01,315 INFO L168 Benchmark]: RCFGBuilder took 435.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:01,315 INFO L168 Benchmark]: TraceAbstraction took 310.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 998.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:01,315 INFO L168 Benchmark]: Witness Printer took 3.03 ms. Allocated memory is still 1.1 GB. Free memory is still 998.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:15:01,318 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 955.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 435.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 55.2 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 310.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 998.0 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.03 ms. Allocated memory is still 1.1 GB. Free memory is still 998.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 175]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L169] double x = __VERIFIER_nondet_double(); [L170] double y = -0.0; [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L171] double res = fmod_double(x, y); [L16] return x != x; [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 20:15:02,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:15:02,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:15:02,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:15:02,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:15:02,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:15:02,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:15:02,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:15:02,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:15:02,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:15:02,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:15:02,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:15:02,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:15:02,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:15:02,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:15:02,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:15:02,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:15:02,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:15:02,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:15:02,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:15:02,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:15:02,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:15:02,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:15:02,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:15:02,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:15:02,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:15:02,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:15:02,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:15:02,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:15:02,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:15:02,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:15:02,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:15:02,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:15:02,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:15:02,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:15:02,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:15:02,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:15:02,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:15:02,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:15:02,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:15:02,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:15:02,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 20:15:02,708 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:15:02,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:15:02,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:15:02,710 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:15:02,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:15:02,710 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:15:02,710 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:15:02,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:15:02,710 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:15:02,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:15:02,711 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:15:02,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:15:02,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:15:02,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:15:02,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:15:02,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:15:02,712 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:15:02,713 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 20:15:02,713 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 20:15:02,713 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:15:02,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:15:02,713 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:15:02,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:15:02,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:15:02,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 20:15:02,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:15:02,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:15:02,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:15:02,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:15:02,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:15:02,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:15:02,715 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 20:15:02,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 20:15:02,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:15:02,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:15:02,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:15:02,716 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan 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 -> Taipan 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 -> 1c6c05365b181d4eacf1f0a2b19f094d722c4a6a [2019-12-07 20:15:02,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:15:02,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:15:02,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:15:02,907 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:15:02,907 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:15:02,908 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-12-07 20:15:02,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/4d84e1dd0/42890c1f1f774a3c9eb8f41ee2590fd9/FLAG70717a163 [2019-12-07 20:15:03,287 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:15:03,288 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2019-12-07 20:15:03,293 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/4d84e1dd0/42890c1f1f774a3c9eb8f41ee2590fd9/FLAG70717a163 [2019-12-07 20:15:03,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/data/4d84e1dd0/42890c1f1f774a3c9eb8f41ee2590fd9 [2019-12-07 20:15:03,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:15:03,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:15:03,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:15:03,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:15:03,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:15:03,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203973a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03, skipping insertion in model container [2019-12-07 20:15:03,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:15:03,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:15:03,463 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:15:03,468 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:15:03,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:15:03,545 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:15:03,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03 WrapperNode [2019-12-07 20:15:03,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:15:03,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:15:03,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:15:03,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:15:03,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,581 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:15:03,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:15:03,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:15:03,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:15:03,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,608 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... [2019-12-07 20:15:03,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:15:03,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:15:03,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:15:03,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:15:03,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:15:03,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 20:15:03,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 20:15:06,830 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:15:06,830 INFO L287 CfgBuilder]: Removed 22 assume(true) statements. [2019-12-07 20:15:06,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:15:06 BoogieIcfgContainer [2019-12-07 20:15:06,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:15:06,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:15:06,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:15:06,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:15:06,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:15:03" (1/3) ... [2019-12-07 20:15:06,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4827d891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:15:06, skipping insertion in model container [2019-12-07 20:15:06,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:15:03" (2/3) ... [2019-12-07 20:15:06,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4827d891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:15:06, skipping insertion in model container [2019-12-07 20:15:06,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:15:06" (3/3) ... [2019-12-07 20:15:06,836 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2019-12-07 20:15:06,842 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:15:06,846 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 20:15:06,853 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 20:15:06,868 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:15:06,868 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:15:06,868 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:15:06,868 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:15:06,869 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:15:06,869 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:15:06,869 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:15:06,869 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:15:06,878 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2019-12-07 20:15:06,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 20:15:06,882 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:15:06,883 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:15:06,883 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:15:06,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:15:06,886 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2019-12-07 20:15:06,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:15:06,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119488679] [2019-12-07 20:15:06,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 20:15:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:15:07,725 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 20:15:07,729 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:15:07,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:15:07,739 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:15:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:15:07,742 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119488679] [2019-12-07 20:15:07,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:15:07,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 20:15:07,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993239459] [2019-12-07 20:15:07,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 20:15:07,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:15:07,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 20:15:07,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 20:15:07,756 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2019-12-07 20:15:07,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:15:07,772 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2019-12-07 20:15:07,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 20:15:07,773 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 20:15:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:15:07,780 INFO L225 Difference]: With dead ends: 108 [2019-12-07 20:15:07,780 INFO L226 Difference]: Without dead ends: 52 [2019-12-07 20:15:07,782 INFO L630 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 [2019-12-07 20:15:07,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-07 20:15:07,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 20:15:07,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 20:15:07,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2019-12-07 20:15:07,806 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2019-12-07 20:15:07,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:15:07,807 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2019-12-07 20:15:07,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 20:15:07,807 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2019-12-07 20:15:07,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 20:15:07,807 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:15:07,807 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:15:08,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 20:15:08,009 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:15:08,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:15:08,009 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2019-12-07 20:15:08,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:15:08,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019698675] [2019-12-07 20:15:08,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 20:15:08,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:15:08,957 INFO L264 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 20:15:08,959 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:15:12,949 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |c_ULTIMATE.start_fmod_double_#res|)) is different from true [2019-12-07 20:15:12,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:15:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:15:16,155 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:15:20,320 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-12-07 20:15:22,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:15:22,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019698675] [2019-12-07 20:15:22,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:15:22,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 20:15:22,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081404108] [2019-12-07 20:15:22,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 20:15:22,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:15:22,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 20:15:22,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=56, Unknown=2, NotChecked=30, Total=110 [2019-12-07 20:15:22,106 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2019-12-07 20:15:25,791 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53))) (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from true [2019-12-07 20:15:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:15:40,626 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2019-12-07 20:15:40,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 20:15:40,666 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-12-07 20:15:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:15:40,667 INFO L225 Difference]: With dead ends: 57 [2019-12-07 20:15:40,667 INFO L226 Difference]: Without dead ends: 52 [2019-12-07 20:15:40,668 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 26.3s TimeCoverageRelationStatistics Valid=37, Invalid=82, Unknown=3, NotChecked=60, Total=182 [2019-12-07 20:15:40,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-07 20:15:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 20:15:40,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 20:15:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-12-07 20:15:40,674 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2019-12-07 20:15:40,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:15:40,675 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-12-07 20:15:40,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 20:15:40,675 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2019-12-07 20:15:40,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 20:15:40,675 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:15:40,676 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:15:40,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:15:40,877 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:15:40,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:15:40,878 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2019-12-07 20:15:40,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:15:40,880 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290260527] [2019-12-07 20:15:40,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:15:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:15:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 20:15:41,185 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 20:15:41,186 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 20:15:41,387 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:15:41,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:15:41 BoogieIcfgContainer [2019-12-07 20:15:41,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:15:41,478 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:15:41,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:15:41,479 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:15:41,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:15:06" (3/4) ... [2019-12-07 20:15:41,485 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 20:15:41,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_51f1d1b3-61cc-4373-ab11-d5e0a4dad768/bin/utaipan/witness.graphml [2019-12-07 20:15:41,536 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:15:41,537 INFO L168 Benchmark]: Toolchain (without parser) took 38232.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 953.7 MB in the beginning and 977.2 MB in the end (delta: -23.4 MB). Peak memory consumption was 116.6 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:41,537 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:15:41,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:41,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:15:41,538 INFO L168 Benchmark]: Boogie Preprocessor took 31.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:41,539 INFO L168 Benchmark]: RCFGBuilder took 3218.99 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: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:41,539 INFO L168 Benchmark]: TraceAbstraction took 34645.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.2 MB in the end (delta: 104.2 MB). Peak memory consumption was 104.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:15:41,539 INFO L168 Benchmark]: Witness Printer took 57.40 ms. Allocated memory is still 1.2 GB. Free memory is still 977.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:15:41,541 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3218.99 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: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 34645.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.2 MB in the end (delta: 104.2 MB). Peak memory consumption was 104.2 MB. Max. memory is 11.5 GB. * Witness Printer took 57.40 ms. Allocated memory is still 1.2 GB. Free memory is still 977.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 175]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L169] double x = __VERIFIER_nondet_double(); [L170] double y = -0.0; [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L43-L44] COND FALSE !((hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [one_fmod=1.0, Zero_fmod={2:0}] [L46] COND TRUE hx <= hy VAL [one_fmod=1.0, Zero_fmod={2:0}] [L47] COND TRUE (hx < hy) || (lx < ly) [L48] return x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L171] double res = fmod_double(x, y); [L16] return x != x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L174] COND TRUE !isnan_double(res) [L175] __VERIFIER_error() VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Result: UNSAFE, OverallTime: 34.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 4 SDslu, 335 SDs, 0 SdLazy, 20 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 26.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 7 QuantifiedInterpolants, 2637 SizeOfPredicates, 11 NumberOfNonLiveVariables, 104 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...