./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.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_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 cc541d75f5affce4b825454cfd79356341e493a9 ................................................................................................................................................................................................................................................................................................................................................................ 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_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 cc541d75f5affce4b825454cfd79356341e493a9 ................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:02:47,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:02:47,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:02:47,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:02:47,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:02:47,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:02:47,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:02:47,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:02:47,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:02:47,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:02:47,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:02:47,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:02:47,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:02:47,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:02:47,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:02:47,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:02:47,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:02:47,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:02:47,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:02:47,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:02:47,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:02:47,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:02:47,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:02:47,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:02:47,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:02:47,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:02:47,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:02:47,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:02:47,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:02:47,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:02:47,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:02:47,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:02:47,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:02:47,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:02:47,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:02:47,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:02:47,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:02:47,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:02:47,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:02:47,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:02:47,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:02:47,617 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 15:02:47,627 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:02:47,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:02:47,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:02:47,627 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:02:47,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 15:02:47,628 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:02:47,628 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 15:02:47,629 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 15:02:47,629 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 15:02:47,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:02:47,629 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:02:47,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:02:47,630 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:02:47,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:02:47,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:02:47,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:02:47,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:02:47,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:02:47,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:02:47,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:02:47,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:02:47,632 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 15:02:47,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:02:47,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:02:47,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:02:47,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:02:47,632 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_76085afe-5c31-4710-9aac-89e6f8024559/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 -> cc541d75f5affce4b825454cfd79356341e493a9 [2019-12-07 15:02:47,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:02:47,738 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:02:47,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:02:47,742 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:02:47,742 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:02:47,742 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 15:02:47,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/21e498bd8/e8ab09af748f48009db6e3e38ee1f6a3/FLAG650c2c9c8 [2019-12-07 15:02:48,238 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:02:48,238 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 15:02:48,243 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/21e498bd8/e8ab09af748f48009db6e3e38ee1f6a3/FLAG650c2c9c8 [2019-12-07 15:02:48,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/21e498bd8/e8ab09af748f48009db6e3e38ee1f6a3 [2019-12-07 15:02:48,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:02:48,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:02:48,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:48,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:02:48,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:02:48,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b8aa41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48, skipping insertion in model container [2019-12-07 15:02:48,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:02:48,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:02:48,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:48,452 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:02:48,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:48,499 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:02:48,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48 WrapperNode [2019-12-07 15:02:48,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:48,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:02:48,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:02:48,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:02:48,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:02:48,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:02:48,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:02:48,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:02:48,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... [2019-12-07 15:02:48,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:02:48,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:02:48,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:02:48,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:02:48,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 15:02:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:02:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:02:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:02:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:02:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:02:48,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:02:48,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:02:48,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:02:48,945 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:02:48,945 INFO L287 CfgBuilder]: Removed 26 assume(true) statements. [2019-12-07 15:02:48,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:02:48 BoogieIcfgContainer [2019-12-07 15:02:48,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:02:48,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:02:48,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:02:48,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:02:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:02:48" (1/3) ... [2019-12-07 15:02:48,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f5efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:02:48, skipping insertion in model container [2019-12-07 15:02:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:48" (2/3) ... [2019-12-07 15:02:48,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f5efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:02:48, skipping insertion in model container [2019-12-07 15:02:48,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:02:48" (3/3) ... [2019-12-07 15:02:48,950 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2019-12-07 15:02:48,957 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:02:48,961 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:02:48,969 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:02:48,983 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:02:48,983 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:02:48,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:02:48,983 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:02:48,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:02:48,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:02:48,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:02:48,983 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:02:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2019-12-07 15:02:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 15:02:48,996 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:02:48,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:02:48,997 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:02:49,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:02:49,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1533170854, now seen corresponding path program 1 times [2019-12-07 15:02:49,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:02:49,006 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350293844] [2019-12-07 15:02:49,006 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:02:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:02:49,090 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 15:02:49,090 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350293844] [2019-12-07 15:02:49,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:02:49,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:02:49,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557315215] [2019-12-07 15:02:49,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:02:49,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:02:49,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:02:49,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:02:49,104 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2019-12-07 15:02:49,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:02:49,117 INFO L93 Difference]: Finished difference Result 74 states and 121 transitions. [2019-12-07 15:02:49,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:02:49,118 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 15:02:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:02:49,125 INFO L225 Difference]: With dead ends: 74 [2019-12-07 15:02:49,125 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 15:02:49,127 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 15:02:49,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 15:02:49,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 15:02:49,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 15:02:49,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2019-12-07 15:02:49,149 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 10 [2019-12-07 15:02:49,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:02:49,150 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2019-12-07 15:02:49,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:02:49,150 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2019-12-07 15:02:49,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:02:49,150 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:02:49,150 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:02:49,151 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:02:49,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:02:49,151 INFO L82 PathProgramCache]: Analyzing trace with hash -521577745, now seen corresponding path program 1 times [2019-12-07 15:02:49,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:02:49,151 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491748062] [2019-12-07 15:02:49,151 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:02:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:02:49,184 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 15:02:49,184 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491748062] [2019-12-07 15:02:49,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:02:49,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 15:02:49,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559435664] [2019-12-07 15:02:49,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:02:49,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 15:02:49,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:02:49,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:02:49,187 INFO L87 Difference]: Start difference. First operand 35 states and 43 transitions. Second operand 3 states. [2019-12-07 15:02:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:02:49,199 INFO L93 Difference]: Finished difference Result 65 states and 80 transitions. [2019-12-07 15:02:49,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:02:49,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-07 15:02:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:02:49,200 INFO L225 Difference]: With dead ends: 65 [2019-12-07 15:02:49,200 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 15:02:49,201 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:02:49,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 15:02:49,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 15:02:49,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 15:02:49,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2019-12-07 15:02:49,204 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 11 [2019-12-07 15:02:49,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:02:49,204 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2019-12-07 15:02:49,204 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:02:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2019-12-07 15:02:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 15:02:49,205 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:02:49,205 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:02:49,205 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:02:49,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:02:49,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1569580393, now seen corresponding path program 1 times [2019-12-07 15:02:49,206 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 15:02:49,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003533036] [2019-12-07 15:02:49,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:02:49,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:02:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:02:49,291 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 15:02:49,291 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:02:49,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:02:49 BoogieIcfgContainer [2019-12-07 15:02:49,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:02:49,319 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:02:49,319 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:02:49,320 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:02:49,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:02:48" (3/4) ... [2019-12-07 15:02:49,322 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:02:49,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:02:49,324 INFO L168 Benchmark]: Toolchain (without parser) took 1069.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 946.2 MB in the beginning and 1.0 GB in the end (delta: -86.4 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:49,324 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:02:49,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:49,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.81 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 15:02:49,326 INFO L168 Benchmark]: Boogie Preprocessor took 27.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:49,326 INFO L168 Benchmark]: RCFGBuilder took 385.17 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:49,327 INFO L168 Benchmark]: TraceAbstraction took 372.70 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:02:49,327 INFO L168 Benchmark]: Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:02:49,329 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 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.81 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 27.04 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 385.17 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 372.70 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 161, overapproximation of bitwiseAnd at line 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 145. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; [L180] double x = __VERIFIER_nondet_double(); [L182] x < 0 && isfinite_double(x) [L164] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L182] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] COND TRUE x < 0 && isfinite_double(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L144] COND TRUE hx >= 0x7ff00000 [L145] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L161] return x != x; [L187] COND TRUE !isnan_double(res) [L188] __VERIFIER_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 0 SDslu, 38 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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, 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 15:02:50,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:02:50,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:02:50,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:02:50,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:02:50,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:02:50,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:02:50,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:02:50,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:02:50,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:02:50,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:02:50,669 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:02:50,669 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:02:50,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:02:50,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:02:50,671 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:02:50,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:02:50,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:02:50,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:02:50,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:02:50,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:02:50,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:02:50,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:02:50,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:02:50,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:02:50,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:02:50,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:02:50,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:02:50,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:02:50,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:02:50,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:02:50,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:02:50,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:02:50,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:02:50,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:02:50,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:02:50,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:02:50,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:02:50,686 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:02:50,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:02:50,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:02:50,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 15:02:50,697 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:02:50,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:02:50,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 15:02:50,698 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 15:02:50,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 15:02:50,698 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 15:02:50,699 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 15:02:50,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 15:02:50,699 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 15:02:50,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:02:50,699 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:02:50,700 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:02:50,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:02:50,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:02:50,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:02:50,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:02:50,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:02:50,703 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_76085afe-5c31-4710-9aac-89e6f8024559/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 -> cc541d75f5affce4b825454cfd79356341e493a9 [2019-12-07 15:02:50,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:02:50,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:02:50,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:02:50,894 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:02:50,895 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:02:50,895 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 15:02:50,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/31a92aeb7/2a095acdb03f42fd949bcdc41df140df/FLAG6707a8915 [2019-12-07 15:02:51,340 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:02:51,341 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2019-12-07 15:02:51,346 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/31a92aeb7/2a095acdb03f42fd949bcdc41df140df/FLAG6707a8915 [2019-12-07 15:02:51,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/data/31a92aeb7/2a095acdb03f42fd949bcdc41df140df [2019-12-07 15:02:51,717 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:02:51,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:02:51,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:51,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:02:51,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:02:51,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:51,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54590536 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51, skipping insertion in model container [2019-12-07 15:02:51,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:51,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:02:51,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:02:51,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:51,875 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:02:51,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:02:51,958 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:02:51,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51 WrapperNode [2019-12-07 15:02:51,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:02:51,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:02:51,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:02:51,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:02:51,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:51,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:51,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:02:51,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:02:51,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:02:51,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:02:52,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,015 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... [2019-12-07 15:02:52,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:02:52,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:02:52,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:02:52,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:02:52,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 15:02:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 15:02:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 15:02:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:02:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:02:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:02:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:02:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:02:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:03:23,949 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:03:23,950 INFO L287 CfgBuilder]: Removed 26 assume(true) statements. [2019-12-07 15:03:23,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:23 BoogieIcfgContainer [2019-12-07 15:03:23,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:03:23,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:03:23,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:03:23,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:03:23,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:02:51" (1/3) ... [2019-12-07 15:03:23,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7f8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:03:23, skipping insertion in model container [2019-12-07 15:03:23,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:02:51" (2/3) ... [2019-12-07 15:03:23,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7f8d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:03:23, skipping insertion in model container [2019-12-07 15:03:23,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:23" (3/3) ... [2019-12-07 15:03:23,956 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2019-12-07 15:03:23,962 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:03:23,966 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:03:23,973 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:03:23,988 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:03:23,988 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:03:23,988 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:03:23,988 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:03:23,988 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:03:23,989 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:03:23,989 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:03:23,989 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:03:23,998 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2019-12-07 15:03:24,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 15:03:24,001 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:24,002 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:24,002 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:24,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:24,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2019-12-07 15:03:24,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:24,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974089483] [2019-12-07 15:03:24,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 15:03:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:24,159 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:03:24,162 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:24,171 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 15:03:24,171 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:24,173 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 15:03:24,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974089483] [2019-12-07 15:03:24,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:24,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:03:24,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211917814] [2019-12-07 15:03:24,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:03:24,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:24,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:03:24,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:03:24,189 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2019-12-07 15:03:24,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:24,203 INFO L93 Difference]: Finished difference Result 95 states and 156 transitions. [2019-12-07 15:03:24,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:03:24,204 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-12-07 15:03:24,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:24,212 INFO L225 Difference]: With dead ends: 95 [2019-12-07 15:03:24,212 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 15:03:24,214 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:03:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 15:03:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 15:03:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 15:03:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2019-12-07 15:03:24,238 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2019-12-07 15:03:24,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:24,239 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2019-12-07 15:03:24,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:03:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2019-12-07 15:03:24,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:03:24,239 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:24,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:24,440 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:03:24,441 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:24,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2019-12-07 15:03:24,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:24,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [489519589] [2019-12-07 15:03:24,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 15:03:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:24,625 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 15:03:24,626 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:24,635 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 15:03:24,636 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:24,638 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 15:03:24,638 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [489519589] [2019-12-07 15:03:24,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:24,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 15:03:24,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106858205] [2019-12-07 15:03:24,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 15:03:24,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:24,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 15:03:24,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:03:24,641 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2019-12-07 15:03:24,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:24,666 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2019-12-07 15:03:24,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 15:03:24,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-12-07 15:03:24,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:24,668 INFO L225 Difference]: With dead ends: 83 [2019-12-07 15:03:24,668 INFO L226 Difference]: Without dead ends: 45 [2019-12-07 15:03:24,669 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 15:03:24,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-12-07 15:03:24,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2019-12-07 15:03:24,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-12-07 15:03:24,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2019-12-07 15:03:24,675 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2019-12-07 15:03:24,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:24,675 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2019-12-07 15:03:24,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 15:03:24,675 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2019-12-07 15:03:24,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:03:24,676 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:24,676 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:24,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:03:24,878 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:24,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:24,880 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2019-12-07 15:03:24,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:24,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343138776] [2019-12-07 15:03:24,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/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 15:03:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:03:25,082 INFO L264 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:03:25,084 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:03:25,258 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 15:03:25,258 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:03:25,399 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 15:03:25,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343138776] [2019-12-07 15:03:25,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:03:25,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 15:03:25,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029453847] [2019-12-07 15:03:25,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 15:03:25,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 15:03:25,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 15:03:25,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-12-07 15:03:25,401 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 10 states. [2019-12-07 15:03:30,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:03:30,188 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2019-12-07 15:03:30,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 15:03:30,218 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2019-12-07 15:03:30,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:03:30,219 INFO L225 Difference]: With dead ends: 50 [2019-12-07 15:03:30,219 INFO L226 Difference]: Without dead ends: 19 [2019-12-07 15:03:30,219 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2019-12-07 15:03:30,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-07 15:03:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-07 15:03:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-07 15:03:30,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-12-07 15:03:30,223 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2019-12-07 15:03:30,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:03:30,223 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-12-07 15:03:30,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 15:03:30,223 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-12-07 15:03:30,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 15:03:30,224 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:03:30,224 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:03:30,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 15:03:30,425 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:03:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:03:30,426 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2019-12-07 15:03:30,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 15:03:30,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508893382] [2019-12-07 15:03:30,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 15:03:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:03:32,396 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 15:03:32,397 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:03:32,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 15:03:32,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:03:32 BoogieIcfgContainer [2019-12-07 15:03:32,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:03:32,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:03:32,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:03:32,677 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:03:32,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:03:23" (3/4) ... [2019-12-07 15:03:32,679 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:03:32,730 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76085afe-5c31-4710-9aac-89e6f8024559/bin/utaipan/witness.graphml [2019-12-07 15:03:32,730 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:03:32,732 INFO L168 Benchmark]: Toolchain (without parser) took 41013.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 941.0 MB in the end (delta: 11.4 MB). Peak memory consumption was 153.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,732 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 15:03:32,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.32 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,733 INFO L168 Benchmark]: Boogie Preprocessor took 31.13 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,733 INFO L168 Benchmark]: RCFGBuilder took 31925.13 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,733 INFO L168 Benchmark]: TraceAbstraction took 8725.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.5 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,734 INFO L168 Benchmark]: Witness Printer took 53.57 ms. Allocated memory is still 1.2 GB. Free memory was 947.5 MB in the beginning and 941.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-12-07 15:03:32,735 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 240.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.32 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.13 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 31925.13 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8725.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 947.5 MB in the end (delta: 128.2 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. * Witness Printer took 53.57 ms. Allocated memory is still 1.2 GB. Free memory was 947.5 MB in the beginning and 941.0 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 188]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L180] double x = __VERIFIER_nondet_double(); [L182] x < 0 && isfinite_double(x) [L164] __int32_t hx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L166] ieee_double_shape_type gh_u; [L167] gh_u.value = (x) [L168] EXPR gh_u.parts.msw [L168] (hx) = gh_u.parts.msw [L170] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] x < 0 && isfinite_double(x) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] COND TRUE x < 0 && isfinite_double(x) [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L131] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] double res = __ieee754_log10(x); [L161] return x != x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L187] COND TRUE !isnan_double(res) [L188] __VERIFIER_error() VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Result: UNSAFE, OverallTime: 8.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 4.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 74 SDslu, 80 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...