./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0681b.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_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 107d4b9d9cb990f15c9b9a39acee77f79bf93da8 ................................................................................................................................................................................................................................................................................................................................... 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_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 107d4b9d9cb990f15c9b9a39acee77f79bf93da8 ..................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:40:08,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:40:08,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:40:08,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:40:08,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:40:08,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:40:08,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:40:08,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:40:08,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:40:08,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:40:08,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:40:08,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:40:08,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:40:08,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:40:08,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:40:08,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:40:08,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:40:08,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:40:08,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:40:08,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:40:08,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:40:08,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:40:08,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:40:08,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:40:08,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:40:08,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:40:08,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:40:08,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:40:08,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:40:08,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:40:08,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:40:08,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:40:08,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:40:08,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:40:08,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:40:08,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:40:08,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:40:08,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:40:08,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:40:08,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:40:08,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:40:08,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:40:08,535 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:40:08,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:40:08,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:40:08,536 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:40:08,536 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:40:08,536 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:40:08,536 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:40:08,536 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:40:08,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:40:08,537 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:40:08,537 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:40:08,537 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:40:08,537 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:40:08,537 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:40:08,537 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:40:08,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:40:08,538 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:40:08,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:40:08,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:40:08,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:40:08,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:40:08,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:40:08,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:40:08,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:40:08,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:40:08,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:40:08,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:40:08,541 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_507c828a-a483-49f3-a351-56ed652a38dc/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 -> 107d4b9d9cb990f15c9b9a39acee77f79bf93da8 [2019-12-07 14:40:08,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:40:08,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:40:08,652 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:40:08,653 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:40:08,654 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:40:08,654 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2019-12-07 14:40:08,698 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/f4e9d08e4/7e7c4d56c68643bf9d076bf43256db31/FLAGa8047a1af [2019-12-07 14:40:09,030 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:40:09,030 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2019-12-07 14:40:09,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/f4e9d08e4/7e7c4d56c68643bf9d076bf43256db31/FLAGa8047a1af [2019-12-07 14:40:09,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/f4e9d08e4/7e7c4d56c68643bf9d076bf43256db31 [2019-12-07 14:40:09,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:40:09,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:40:09,048 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:40:09,048 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:40:09,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:40:09,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712b2759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09, skipping insertion in model container [2019-12-07 14:40:09,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:40:09,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:40:09,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:40:09,250 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:40:09,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:40:09,300 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:40:09,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09 WrapperNode [2019-12-07 14:40:09,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:40:09,301 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:40:09,301 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:40:09,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:40:09,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:40:09,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:40:09,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:40:09,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:40:09,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... [2019-12-07 14:40:09,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:40:09,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:40:09,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:40:09,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:40:09,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 14:40:09,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:40:09,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 14:40:09,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:40:09,959 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:40:09,960 INFO L287 CfgBuilder]: Removed 48 assume(true) statements. [2019-12-07 14:40:09,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:09 BoogieIcfgContainer [2019-12-07 14:40:09,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:40:09,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:40:09,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:40:09,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:40:09,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:40:09" (1/3) ... [2019-12-07 14:40:09,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65048774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:40:09, skipping insertion in model container [2019-12-07 14:40:09,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:09" (2/3) ... [2019-12-07 14:40:09,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65048774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:40:09, skipping insertion in model container [2019-12-07 14:40:09,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:09" (3/3) ... [2019-12-07 14:40:09,967 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2019-12-07 14:40:09,976 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:40:09,982 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:40:09,992 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:40:10,009 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:40:10,009 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:40:10,009 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:40:10,010 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:40:10,010 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:40:10,010 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:40:10,010 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:40:10,010 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:40:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-12-07 14:40:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 14:40:10,026 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:40:10,026 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:10,027 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:40:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:10,031 INFO L82 PathProgramCache]: Analyzing trace with hash 311686049, now seen corresponding path program 1 times [2019-12-07 14:40:10,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:40:10,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692730726] [2019-12-07 14:40:10,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:40:10,150 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 14:40:10,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692730726] [2019-12-07 14:40:10,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:40:10,152 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:40:10,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161454561] [2019-12-07 14:40:10,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:40:10,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 14:40:10,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:40:10,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:40:10,166 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-12-07 14:40:10,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:40:10,184 INFO L93 Difference]: Finished difference Result 171 states and 293 transitions. [2019-12-07 14:40:10,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:40:10,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 14:40:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:40:10,193 INFO L225 Difference]: With dead ends: 171 [2019-12-07 14:40:10,193 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 14:40:10,196 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 14:40:10,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 14:40:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-12-07 14:40:10,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-12-07 14:40:10,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2019-12-07 14:40:10,223 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 10 [2019-12-07 14:40:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:40:10,223 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2019-12-07 14:40:10,223 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:40:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2019-12-07 14:40:10,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 14:40:10,224 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:40:10,224 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:10,224 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:40:10,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:10,224 INFO L82 PathProgramCache]: Analyzing trace with hash 934084312, now seen corresponding path program 1 times [2019-12-07 14:40:10,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 14:40:10,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482085939] [2019-12-07 14:40:10,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:40:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:10,325 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 14:40:10,326 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:40:10,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:40:10 BoogieIcfgContainer [2019-12-07 14:40:10,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:40:10,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:40:10,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:40:10,354 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:40:10,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:09" (3/4) ... [2019-12-07 14:40:10,356 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:40:10,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:40:10,358 INFO L168 Benchmark]: Toolchain (without parser) took 1310.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 955.1 MB in the end (delta: -10.4 MB). Peak memory consumption was 89.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:10,358 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:40:10,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:10,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:10,360 INFO L168 Benchmark]: Boogie Preprocessor took 40.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:40:10,360 INFO L168 Benchmark]: RCFGBuilder took 578.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 988.7 MB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:10,361 INFO L168 Benchmark]: TraceAbstraction took 391.66 ms. Allocated memory is still 1.1 GB. Free memory was 988.7 MB in the beginning and 955.1 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:10,361 INFO L168 Benchmark]: Witness Printer took 2.93 ms. Allocated memory is still 1.1 GB. Free memory is still 955.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:40:10,363 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 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -143.0 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 578.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 988.7 MB in the end (delta: 93.6 MB). Peak memory consumption was 93.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 391.66 ms. Allocated memory is still 1.1 GB. Free memory was 988.7 MB in the beginning and 955.1 MB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.93 ms. Allocated memory is still 1.1 GB. Free memory is still 955.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 268]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 162, overapproximation of someUnaryDOUBLEoperation at line 52, overapproximation of bitwiseAnd at line 160, overapproximation of someBinaryArithmeticDOUBLEoperation at line 163, overapproximation of someBinaryDOUBLEComparisonOperation at line 267. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L263] double x = 0.0; [L264] double y = -0.0; [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L161-L162] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L163] return x + y; VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L265] double res = __ieee754_atan2(y, x); [L267] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L267] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L268] __VERIFIER_error() VAL [aT_atan={5:0}, atanhi_atan={3:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 116 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 14:40:11,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:40:11,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:40:11,686 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:40:11,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:40:11,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:40:11,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:40:11,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:40:11,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:40:11,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:40:11,693 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:40:11,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:40:11,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:40:11,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:40:11,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:40:11,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:40:11,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:40:11,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:40:11,701 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:40:11,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:40:11,704 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:40:11,706 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:40:11,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:40:11,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:40:11,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:40:11,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:40:11,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:40:11,711 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:40:11,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:40:11,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:40:11,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:40:11,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:40:11,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:40:11,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:40:11,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:40:11,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:40:11,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:40:11,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:40:11,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:40:11,716 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:40:11,717 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:40:11,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:40:11,731 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:40:11,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:40:11,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:40:11,732 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:40:11,732 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:40:11,732 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:40:11,732 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:40:11,732 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:40:11,732 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:40:11,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:40:11,733 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:40:11,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:40:11,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:40:11,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:40:11,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:40:11,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:40:11,734 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:40:11,734 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:40:11,734 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:40:11,734 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:40:11,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:40:11,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:40:11,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:40:11,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:40:11,737 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_507c828a-a483-49f3-a351-56ed652a38dc/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 -> 107d4b9d9cb990f15c9b9a39acee77f79bf93da8 [2019-12-07 14:40:11,898 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:40:11,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:40:11,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:40:11,909 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:40:11,910 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:40:11,910 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2019-12-07 14:40:11,947 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/19bbcd233/f41084fe47ba4077b654ab7a377b1701/FLAGdeac6524c [2019-12-07 14:40:12,281 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:40:12,281 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/sv-benchmarks/c/float-newlib/double_req_bl_0681b.c [2019-12-07 14:40:12,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/19bbcd233/f41084fe47ba4077b654ab7a377b1701/FLAGdeac6524c [2019-12-07 14:40:12,299 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/data/19bbcd233/f41084fe47ba4077b654ab7a377b1701 [2019-12-07 14:40:12,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:40:12,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:40:12,303 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:40:12,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:40:12,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:40:12,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@203973a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12, skipping insertion in model container [2019-12-07 14:40:12,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:40:12,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:40:12,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:40:12,501 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:40:12,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:40:12,595 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:40:12,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12 WrapperNode [2019-12-07 14:40:12,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:40:12,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:40:12,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:40:12,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:40:12,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:40:12,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:40:12,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:40:12,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:40:12,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... [2019-12-07 14:40:12,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:40:12,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:40:12,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:40:12,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:40:12,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:40:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 14:40:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:40:48,793 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:40:48,793 INFO L287 CfgBuilder]: Removed 48 assume(true) statements. [2019-12-07 14:40:48,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:48 BoogieIcfgContainer [2019-12-07 14:40:48,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:40:48,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:40:48,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:40:48,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:40:48,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:40:12" (1/3) ... [2019-12-07 14:40:48,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed3b043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:40:48, skipping insertion in model container [2019-12-07 14:40:48,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:40:12" (2/3) ... [2019-12-07 14:40:48,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed3b043 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:40:48, skipping insertion in model container [2019-12-07 14:40:48,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:48" (3/3) ... [2019-12-07 14:40:48,800 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681b.c [2019-12-07 14:40:48,807 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:40:48,812 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:40:48,819 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:40:48,835 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:40:48,835 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:40:48,835 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:40:48,835 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:40:48,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:40:48,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:40:48,836 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:40:48,836 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:40:48,847 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2019-12-07 14:40:48,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 14:40:48,851 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:40:48,852 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:48,852 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:40:48,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:48,856 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2019-12-07 14:40:48,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:40:48,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139267207] [2019-12-07 14:40:48,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 14:40:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:40:49,184 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:40:49,188 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:40:49,199 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 14:40:49,199 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:40:49,202 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 14:40:49,203 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139267207] [2019-12-07 14:40:49,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:40:49,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:40:49,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618624193] [2019-12-07 14:40:49,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:40:49,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:40:49,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:40:49,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:40:49,219 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2019-12-07 14:40:49,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:40:49,240 INFO L93 Difference]: Finished difference Result 234 states and 394 transitions. [2019-12-07 14:40:49,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:40:49,241 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 14:40:49,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:40:49,250 INFO L225 Difference]: With dead ends: 234 [2019-12-07 14:40:49,250 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 14:40:49,253 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:40:49,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 14:40:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-12-07 14:40:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 14:40:49,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2019-12-07 14:40:49,283 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2019-12-07 14:40:49,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:40:49,283 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2019-12-07 14:40:49,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:40:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2019-12-07 14:40:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 14:40:49,284 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:40:49,284 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:49,485 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:40:49,485 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:40:49,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:49,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2019-12-07 14:40:49,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:40:49,488 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829603210] [2019-12-07 14:40:49,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 14:40:49,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:40:49,863 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 14:40:49,867 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:40:50,027 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 14:40:50,028 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:40:50,134 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:40:50,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:40:50,434 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 14:40:50,435 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829603210] [2019-12-07 14:40:50,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:40:50,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-12-07 14:40:50,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297481938] [2019-12-07 14:40:50,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 14:40:50,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:40:50,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 14:40:50,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-12-07 14:40:50,437 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2019-12-07 14:40:52,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:40:52,314 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2019-12-07 14:40:52,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:40:52,315 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2019-12-07 14:40:52,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:40:52,316 INFO L225 Difference]: With dead ends: 171 [2019-12-07 14:40:52,316 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 14:40:52,317 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-12-07 14:40:52,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 14:40:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-12-07 14:40:52,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 14:40:52,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2019-12-07 14:40:52,326 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2019-12-07 14:40:52,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:40:52,326 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2019-12-07 14:40:52,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 14:40:52,326 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2019-12-07 14:40:52,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 14:40:52,327 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:40:52,327 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:40:52,527 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:40:52,528 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:40:52,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:40:52,529 INFO L82 PathProgramCache]: Analyzing trace with hash -697961435, now seen corresponding path program 1 times [2019-12-07 14:40:52,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:40:52,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790568592] [2019-12-07 14:40:52,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/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 14:40:53,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:53,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:40:53,770 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:40:53,770 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:40:53,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:40:54,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:40:54 BoogieIcfgContainer [2019-12-07 14:40:54,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:40:54,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:40:54,037 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:40:54,037 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:40:54,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:40:48" (3/4) ... [2019-12-07 14:40:54,039 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:40:54,097 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_507c828a-a483-49f3-a351-56ed652a38dc/bin/utaipan/witness.graphml [2019-12-07 14:40:54,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:40:54,098 INFO L168 Benchmark]: Toolchain (without parser) took 41795.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 952.4 MB in the beginning and 830.8 MB in the end (delta: 121.6 MB). Peak memory consumption was 213.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:54,099 INFO L168 Benchmark]: CDTParser took 0.13 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 14:40:54,099 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -128.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:54,099 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:54,100 INFO L168 Benchmark]: Boogie Preprocessor took 50.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:54,100 INFO L168 Benchmark]: RCFGBuilder took 36102.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 981.4 MB in the end (delta: 84.8 MB). Peak memory consumption was 84.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:54,100 INFO L168 Benchmark]: TraceAbstraction took 5241.50 ms. Allocated memory is still 1.1 GB. Free memory was 981.4 MB in the beginning and 830.8 MB in the end (delta: 150.6 MB). Peak memory consumption was 150.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:40:54,101 INFO L168 Benchmark]: Witness Printer took 60.15 ms. Allocated memory is still 1.1 GB. Free memory is still 830.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:40:54,103 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 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -128.0 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 36102.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 981.4 MB in the end (delta: 84.8 MB). Peak memory consumption was 84.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5241.50 ms. Allocated memory is still 1.1 GB. Free memory was 981.4 MB in the beginning and 830.8 MB in the end (delta: 150.6 MB). Peak memory consumption was 150.6 MB. Max. memory is 11.5 GB. * Witness Printer took 60.15 ms. Allocated memory is still 1.1 GB. Free memory is still 830.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 268]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L139-L140] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L263] double x = 0.0; [L264] double y = -0.0; [L143] double z; [L144] __int32_t k, m, hx, hy, ix, iy; [L145] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L148] ieee_double_shape_type ew_u; [L149] ew_u.value = (x) [L150] EXPR ew_u.parts.msw [L150] (hx) = ew_u.parts.msw [L151] EXPR ew_u.parts.lsw [L151] (lx) = ew_u.parts.lsw [L153] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L155] ieee_double_shape_type ew_u; [L156] ew_u.value = (y) [L157] EXPR ew_u.parts.msw [L157] (hy) = ew_u.parts.msw [L158] EXPR ew_u.parts.lsw [L158] (ly) = ew_u.parts.lsw [L160] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L161-L162] COND FALSE !(((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L164] COND FALSE !(((hx - 0x3ff00000) | lx) == 0) [L166] m = ((hy >> 31) & 1) | ((hx >> 30) & 2) VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L168] COND FALSE !((iy | ly) == 0) VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L180] COND TRUE (ix | lx) == 0 VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L181] EXPR (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2 VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L181] return (hy < 0) ? -pi_o_2 - tiny_atan2 : pi_o_2 + tiny_atan2; [L265] double res = __ieee754_atan2(y, x); [L267] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L267] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L268] __VERIFIER_error() VAL [aT_atan={7:0}, atanhi_atan={3:0}, atanlo_atan={2:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 1 error locations. Result: UNSAFE, OverallTime: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 741 SDslu, 12 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 13 QuantifiedInterpolants, 5444 SizeOfPredicates, 16 NumberOfNonLiveVariables, 230 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...