./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.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_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 42a2b09bf764c955809dc95e1d3b096fa07a0419 ................................................................................................................................................................................................................................................................................................................................... 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_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 42a2b09bf764c955809dc95e1d3b096fa07a0419 ..................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:14:14,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:14:14,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:14:14,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:14:14,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:14:14,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:14:14,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:14:14,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:14:14,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:14:14,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:14:14,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:14:14,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:14:14,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:14:14,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:14:14,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:14:14,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:14:14,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:14:14,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:14:14,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:14:14,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:14:14,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:14:14,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:14:14,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:14:14,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:14:14,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:14:14,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:14:14,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:14:14,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:14:14,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:14:14,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:14:14,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:14:14,665 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:14:14,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:14:14,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:14:14,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:14:14,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:14:14,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:14:14,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:14:14,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:14:14,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:14:14,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:14:14,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 16:14:14,678 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:14:14,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:14:14,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:14:14,679 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:14:14,679 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:14:14,679 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:14:14,679 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:14:14,679 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:14:14,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:14:14,680 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:14:14,680 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:14:14,680 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:14:14,680 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:14:14,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:14:14,680 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:14:14,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:14:14,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:14:14,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:14:14,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:14:14,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:14:14,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:14:14,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:14:14,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:14:14,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:14,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:14:14,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:14:14,684 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_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 -> 42a2b09bf764c955809dc95e1d3b096fa07a0419 [2019-12-07 16:14:14,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:14:14,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:14:14,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:14:14,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:14:14,796 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:14:14,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2019-12-07 16:14:14,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/35a2c5b0e/4efe5b936a734620aa239cba55df26fe/FLAG0326c1f75 [2019-12-07 16:14:15,259 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:14:15,259 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2019-12-07 16:14:15,264 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/35a2c5b0e/4efe5b936a734620aa239cba55df26fe/FLAG0326c1f75 [2019-12-07 16:14:15,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/35a2c5b0e/4efe5b936a734620aa239cba55df26fe [2019-12-07 16:14:15,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:14:15,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:14:15,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:15,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:14:15,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:14:15,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1d1bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15, skipping insertion in model container [2019-12-07 16:14:15,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:14:15,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:15,484 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:15,488 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:14:15,526 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:15,541 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:14:15,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15 WrapperNode [2019-12-07 16:14:15,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:15,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:15,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:14:15,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:14:15,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:15,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:14:15,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:14:15,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:14:15,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... [2019-12-07 16:14:15,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:14:15,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:14:15,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:14:15,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:14:15,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:14:15,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 16:14:15,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:14:16,214 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:14:16,214 INFO L287 CfgBuilder]: Removed 48 assume(true) statements. [2019-12-07 16:14:16,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:16 BoogieIcfgContainer [2019-12-07 16:14:16,215 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:14:16,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:14:16,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:14:16,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:14:16,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:14:15" (1/3) ... [2019-12-07 16:14:16,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7294262b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:16, skipping insertion in model container [2019-12-07 16:14:16,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:15" (2/3) ... [2019-12-07 16:14:16,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7294262b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:16, skipping insertion in model container [2019-12-07 16:14:16,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:16" (3/3) ... [2019-12-07 16:14:16,220 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2019-12-07 16:14:16,226 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:14:16,231 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:14:16,238 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:14:16,253 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:14:16,253 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:14:16,253 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:14:16,253 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:14:16,254 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:14:16,254 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:14:16,254 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:14:16,254 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:14:16,265 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-12-07 16:14:16,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 16:14:16,269 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:16,269 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:16,269 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:16,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:16,273 INFO L82 PathProgramCache]: Analyzing trace with hash 311686049, now seen corresponding path program 1 times [2019-12-07 16:14:16,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:14:16,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501480740] [2019-12-07 16:14:16,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:14:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:14:16,372 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 16:14:16,373 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501480740] [2019-12-07 16:14:16,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:14:16,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:14:16,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178474594] [2019-12-07 16:14:16,377 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:14:16,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:14:16,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:14:16,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:14:16,387 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2019-12-07 16:14:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:14:16,405 INFO L93 Difference]: Finished difference Result 171 states and 293 transitions. [2019-12-07 16:14:16,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:14:16,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 16:14:16,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:14:16,413 INFO L225 Difference]: With dead ends: 171 [2019-12-07 16:14:16,414 INFO L226 Difference]: Without dead ends: 84 [2019-12-07 16:14:16,416 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 16:14:16,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-12-07 16:14:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2019-12-07 16:14:16,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2019-12-07 16:14:16,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 114 transitions. [2019-12-07 16:14:16,443 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 114 transitions. Word has length 10 [2019-12-07 16:14:16,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:14:16,443 INFO L462 AbstractCegarLoop]: Abstraction has 84 states and 114 transitions. [2019-12-07 16:14:16,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:14:16,443 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 114 transitions. [2019-12-07 16:14:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 16:14:16,443 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:16,444 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:16,444 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:16,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:16,444 INFO L82 PathProgramCache]: Analyzing trace with hash 934084312, now seen corresponding path program 1 times [2019-12-07 16:14:16,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:14:16,444 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004875047] [2019-12-07 16:14:16,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:14:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:14:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:14:16,540 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 16:14:16,540 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:14:16,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:14:16 BoogieIcfgContainer [2019-12-07 16:14:16,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:14:16,567 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:14:16,567 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:14:16,567 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:14:16,568 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:16" (3/4) ... [2019-12-07 16:14:16,570 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:14:16,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:14:16,571 INFO L168 Benchmark]: Toolchain (without parser) took 1296.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 946.2 MB in the beginning and 989.7 MB in the end (delta: -43.5 MB). Peak memory consumption was 82.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:16,572 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:16,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:16,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:16,573 INFO L168 Benchmark]: Boogie Preprocessor took 45.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:16,573 INFO L168 Benchmark]: RCFGBuilder took 585.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:16,574 INFO L168 Benchmark]: TraceAbstraction took 350.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:14:16,574 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 1.2 GB. Free memory is still 989.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:14:16,576 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 585.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 350.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 989.7 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 ms. Allocated memory is still 1.2 GB. Free memory is still 989.7 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) == 0 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) == 0) [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: 0.2s, 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 16:14:18,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:14:18,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:14:18,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:14:18,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:14:18,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:14:18,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:14:18,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:14:18,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:14:18,044 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:14:18,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:14:18,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:14:18,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:14:18,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:14:18,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:14:18,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:14:18,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:14:18,049 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:14:18,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:14:18,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:14:18,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:14:18,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:14:18,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:14:18,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:14:18,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:14:18,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:14:18,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:14:18,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:14:18,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:14:18,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:14:18,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:14:18,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:14:18,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:14:18,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:14:18,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:14:18,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:14:18,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:14:18,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:14:18,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:14:18,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:14:18,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:14:18,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 16:14:18,074 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:14:18,074 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:14:18,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:14:18,075 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:14:18,075 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:14:18,075 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:14:18,075 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:14:18,075 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:14:18,075 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:14:18,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:14:18,076 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:14:18,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:14:18,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:14:18,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:14:18,076 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:14:18,076 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:14:18,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:14:18,077 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:14:18,078 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:14:18,078 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 16:14:18,079 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 16:14:18,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:14:18,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:14:18,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:14:18,079 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_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 -> 42a2b09bf764c955809dc95e1d3b096fa07a0419 [2019-12-07 16:14:18,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:14:18,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:14:18,276 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:14:18,278 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:14:18,278 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:14:18,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2019-12-07 16:14:18,318 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/253d9dbbb/17450c566d384866b35eb1c137a32e83/FLAG2ad0ed01a [2019-12-07 16:14:18,725 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:14:18,726 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/sv-benchmarks/c/float-newlib/double_req_bl_0681a.c [2019-12-07 16:14:18,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/253d9dbbb/17450c566d384866b35eb1c137a32e83/FLAG2ad0ed01a [2019-12-07 16:14:19,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/data/253d9dbbb/17450c566d384866b35eb1c137a32e83 [2019-12-07 16:14:19,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:14:19,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:14:19,105 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:19,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:14:19,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:14:19,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453566ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19, skipping insertion in model container [2019-12-07 16:14:19,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:14:19,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:14:19,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:19,280 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:14:19,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:14:19,371 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:14:19,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19 WrapperNode [2019-12-07 16:14:19,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:14:19,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:19,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:14:19,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:14:19,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:14:19,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:14:19,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:14:19,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:14:19,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... [2019-12-07 16:14:19,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:14:19,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:14:19,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:14:19,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:14:19,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 16:14:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 16:14:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 16:14:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 16:14:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 16:14:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 16:14:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:14:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:14:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 16:14:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 16:14:55,903 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:14:55,903 INFO L287 CfgBuilder]: Removed 48 assume(true) statements. [2019-12-07 16:14:55,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:55 BoogieIcfgContainer [2019-12-07 16:14:55,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:14:55,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:14:55,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:14:55,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:14:55,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:14:19" (1/3) ... [2019-12-07 16:14:55,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162ef03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:55, skipping insertion in model container [2019-12-07 16:14:55,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:14:19" (2/3) ... [2019-12-07 16:14:55,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162ef03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:14:55, skipping insertion in model container [2019-12-07 16:14:55,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:55" (3/3) ... [2019-12-07 16:14:55,909 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0681a.c [2019-12-07 16:14:55,916 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:14:55,920 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 16:14:55,928 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 16:14:55,944 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:14:55,944 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:14:55,944 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:14:55,944 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:14:55,945 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:14:55,945 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:14:55,945 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:14:55,945 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:14:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2019-12-07 16:14:55,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 16:14:55,961 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:55,962 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:55,962 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:55,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:55,966 INFO L82 PathProgramCache]: Analyzing trace with hash 531143789, now seen corresponding path program 1 times [2019-12-07 16:14:55,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:14:55,974 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105240762] [2019-12-07 16:14:55,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 16:14:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:14:56,290 INFO L264 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 16:14:56,295 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:14:56,305 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 16:14:56,305 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:14:56,308 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 16:14:56,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105240762] [2019-12-07 16:14:56,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:14:56,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 16:14:56,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139803828] [2019-12-07 16:14:56,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:14:56,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:14:56,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:14:56,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:14:56,323 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2019-12-07 16:14:56,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:14:56,344 INFO L93 Difference]: Finished difference Result 234 states and 394 transitions. [2019-12-07 16:14:56,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:14:56,345 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 16:14:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:14:56,354 INFO L225 Difference]: With dead ends: 234 [2019-12-07 16:14:56,354 INFO L226 Difference]: Without dead ends: 115 [2019-12-07 16:14:56,357 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 16:14:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-12-07 16:14:56,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-12-07 16:14:56,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-12-07 16:14:56,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 164 transitions. [2019-12-07 16:14:56,387 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 164 transitions. Word has length 11 [2019-12-07 16:14:56,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:14:56,387 INFO L462 AbstractCegarLoop]: Abstraction has 115 states and 164 transitions. [2019-12-07 16:14:56,387 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:14:56,387 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 164 transitions. [2019-12-07 16:14:56,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:14:56,388 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:56,388 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:14:56,588 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 16:14:56,589 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:56,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:56,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1379574948, now seen corresponding path program 1 times [2019-12-07 16:14:56,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:14:56,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [853990452] [2019-12-07 16:14:56,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 16:14:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:14:56,957 INFO L264 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 16:14:56,960 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:14:57,109 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 16:14:57,110 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 16:14:57,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:14:57,397 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 16:14:57,537 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 16:14:57,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [853990452] [2019-12-07 16:14:57,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:14:57,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2019-12-07 16:14:57,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645936683] [2019-12-07 16:14:57,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 16:14:57,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 16:14:57,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 16:14:57,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:14:57,540 INFO L87 Difference]: Start difference. First operand 115 states and 164 transitions. Second operand 12 states. [2019-12-07 16:14:59,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:14:59,618 INFO L93 Difference]: Finished difference Result 171 states and 238 transitions. [2019-12-07 16:14:59,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:14:59,619 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2019-12-07 16:14:59,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:14:59,620 INFO L225 Difference]: With dead ends: 171 [2019-12-07 16:14:59,621 INFO L226 Difference]: Without dead ends: 76 [2019-12-07 16:14:59,622 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 16:14:59,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-12-07 16:14:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-12-07 16:14:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-12-07 16:14:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2019-12-07 16:14:59,630 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 13 [2019-12-07 16:14:59,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:14:59,631 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2019-12-07 16:14:59,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 16:14:59,631 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2019-12-07 16:14:59,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:14:59,632 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:14:59,632 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 16:14:59,832 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 16:14:59,833 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 16:14:59,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:14:59,833 INFO L82 PathProgramCache]: Analyzing trace with hash -640703133, now seen corresponding path program 1 times [2019-12-07 16:14:59,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 16:14:59,835 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338530155] [2019-12-07 16:14:59,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/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 16:15:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:15:01,091 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 16:15:01,091 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:15:01,291 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 16:15:01,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:15:01 BoogieIcfgContainer [2019-12-07 16:15:01,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:15:01,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:15:01,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:15:01,353 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:15:01,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:14:55" (3/4) ... [2019-12-07 16:15:01,355 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 16:15:01,404 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_80108148-ef5a-476b-9ac3-7f8b6eaf3d79/bin/utaipan/witness.graphml [2019-12-07 16:15:01,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:15:01,406 INFO L168 Benchmark]: Toolchain (without parser) took 42301.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.4 MB in the beginning and 858.7 MB in the end (delta: 93.7 MB). Peak memory consumption was 212.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,406 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:15:01,406 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.45 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,407 INFO L168 Benchmark]: Boogie Preprocessor took 45.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,407 INFO L168 Benchmark]: RCFGBuilder took 36444.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,407 INFO L168 Benchmark]: TraceAbstraction took 5447.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 865.4 MB in the end (delta: 148.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,408 INFO L168 Benchmark]: Witness Printer took 51.42 ms. Allocated memory is still 1.1 GB. Free memory was 865.4 MB in the beginning and 858.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:15:01,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -155.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.45 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 36444.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 79.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5447.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 865.4 MB in the end (delta: 148.6 MB). Peak memory consumption was 148.6 MB. Max. memory is 11.5 GB. * Witness Printer took 51.42 ms. Allocated memory is still 1.1 GB. Free memory was 865.4 MB in the beginning and 858.7 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. 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) == 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] [L267] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [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: 5.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 250 SDtfs, 741 SDslu, 12 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s 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, 5360 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...