./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.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_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 183c064a530646119ada233c15fa830a0c2bc1a1 ........................................................................................................................................................................................................................................................................................................... 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_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 183c064a530646119ada233c15fa830a0c2bc1a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 19:59:25,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:59:25,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:59:25,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:59:25,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:59:25,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:59:25,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:59:25,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:59:25,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:59:25,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:59:25,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:59:25,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:59:25,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:59:25,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:59:25,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:59:25,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:59:25,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:59:25,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:59:25,664 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:59:25,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:59:25,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:59:25,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:59:25,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:59:25,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:59:25,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:59:25,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:59:25,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:59:25,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:59:25,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:59:25,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:59:25,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:59:25,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:59:25,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:59:25,672 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:59:25,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:59:25,673 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:59:25,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:59:25,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:59:25,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:59:25,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:59:25,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:59:25,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:59:25,685 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:59:25,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:59:25,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:59:25,686 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:59:25,686 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:59:25,686 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:59:25,686 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:59:25,686 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:59:25,686 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:59:25,686 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:59:25,687 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:59:25,687 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:59:25,687 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:59:25,687 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:59:25,687 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:59:25,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:59:25,688 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:59:25,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:59:25,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:59:25,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:59:25,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:59:25,690 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_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 -> 183c064a530646119ada233c15fa830a0c2bc1a1 [2019-12-07 19:59:25,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:59:25,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:59:25,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:59:25,803 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:59:25,803 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:59:25,804 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 19:59:25,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/fc0a13d53/dc6d9fcddbe14147893701f6dae38468/FLAG09305fd1f [2019-12-07 19:59:26,308 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:59:26,308 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 19:59:26,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/fc0a13d53/dc6d9fcddbe14147893701f6dae38468/FLAG09305fd1f [2019-12-07 19:59:26,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/fc0a13d53/dc6d9fcddbe14147893701f6dae38468 [2019-12-07 19:59:26,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:59:26,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:59:26,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:59:26,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:59:26,834 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:59:26,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:59:26" (1/1) ... [2019-12-07 19:59:26,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab9a27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:26, skipping insertion in model container [2019-12-07 19:59:26,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:59:26" (1/1) ... [2019-12-07 19:59:26,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:59:26,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:59:27,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:59:27,015 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:59:27,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:59:27,055 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:59:27,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27 WrapperNode [2019-12-07 19:59:27,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:59:27,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:59:27,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:59:27,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:59:27,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:59:27,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:59:27,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:59:27,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:59:27,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,104 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... [2019-12-07 19:59:27,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:59:27,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:59:27,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:59:27,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:59:27,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 19:59:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:59:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 19:59:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 19:59:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 19:59:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:59:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:59:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 19:59:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:59:27,422 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:59:27,422 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 19:59:27,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:59:27 BoogieIcfgContainer [2019-12-07 19:59:27,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:59:27,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:59:27,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:59:27,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:59:27,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:59:26" (1/3) ... [2019-12-07 19:59:27,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7eb674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:59:27, skipping insertion in model container [2019-12-07 19:59:27,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:27" (2/3) ... [2019-12-07 19:59:27,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d7eb674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:59:27, skipping insertion in model container [2019-12-07 19:59:27,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:59:27" (3/3) ... [2019-12-07 19:59:27,428 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2019-12-07 19:59:27,435 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:59:27,439 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:59:27,447 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:59:27,462 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:59:27,462 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:59:27,462 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:59:27,462 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:59:27,462 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:59:27,462 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:59:27,462 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:59:27,463 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:59:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-12-07 19:59:27,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 19:59:27,475 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:59:27,476 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:59:27,476 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:59:27,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:59:27,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1765374846, now seen corresponding path program 1 times [2019-12-07 19:59:27,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:59:27,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477497759] [2019-12-07 19:59:27,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:59:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:59:27,564 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 19:59:27,564 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477497759] [2019-12-07 19:59:27,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:59:27,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 19:59:27,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148516881] [2019-12-07 19:59:27,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:59:27,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 19:59:27,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:59:27,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:59:27,579 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2019-12-07 19:59:27,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:59:27,590 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2019-12-07 19:59:27,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:59:27,591 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-12-07 19:59:27,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:59:27,597 INFO L225 Difference]: With dead ends: 37 [2019-12-07 19:59:27,598 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 19:59:27,600 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 19:59:27,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 19:59:27,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-07 19:59:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-07 19:59:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2019-12-07 19:59:27,621 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 8 [2019-12-07 19:59:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:59:27,621 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2019-12-07 19:59:27,621 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:59:27,621 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2019-12-07 19:59:27,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 19:59:27,621 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:59:27,622 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:59:27,622 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:59:27,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:59:27,622 INFO L82 PathProgramCache]: Analyzing trace with hash -656636463, now seen corresponding path program 1 times [2019-12-07 19:59:27,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 19:59:27,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688385515] [2019-12-07 19:59:27,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 19:59:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:59:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:59:27,685 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 19:59:27,686 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:59:27,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:59:27 BoogieIcfgContainer [2019-12-07 19:59:27,706 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:59:27,707 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:59:27,707 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:59:27,707 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:59:27,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:59:27" (3/4) ... [2019-12-07 19:59:27,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 19:59:27,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:59:27,711 INFO L168 Benchmark]: Toolchain (without parser) took 880.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 938.7 MB in the beginning and 1.0 GB in the end (delta: -80.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:59:27,711 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:59:27,712 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:59:27,712 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:59:27,712 INFO L168 Benchmark]: Boogie Preprocessor took 21.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:59:27,713 INFO L168 Benchmark]: RCFGBuilder took 315.59 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:59:27,713 INFO L168 Benchmark]: TraceAbstraction took 282.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:59:27,713 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:59:27,715 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 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.79 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.11 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 315.59 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: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 282.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.81 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 140]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 127, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; [L135] double x = 0.0 / 0.0; [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L136] double res = __ieee754_log(x); [L127] return x != x; [L139] COND TRUE !isnan_double(res) [L140] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 22 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=19occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 19:59:29,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:59:29,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:59:29,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:59:29,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:59:29,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:59:29,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:59:29,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:59:29,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:59:29,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:59:29,112 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:59:29,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:59:29,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:59:29,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:59:29,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:59:29,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:59:29,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:59:29,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:59:29,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:59:29,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:59:29,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:59:29,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:59:29,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:59:29,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:59:29,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:59:29,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:59:29,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:59:29,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:59:29,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:59:29,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:59:29,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:59:29,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:59:29,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:59:29,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:59:29,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:59:29,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:59:29,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:59:29,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:59:29,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:59:29,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:59:29,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:59:29,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:59:29,142 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:59:29,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:59:29,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:59:29,143 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:59:29,143 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:59:29,143 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:59:29,143 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:59:29,143 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:59:29,144 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:59:29,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:59:29,144 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:59:29,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:59:29,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:59:29,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:59:29,146 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:59:29,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:59:29,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:59:29,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:59:29,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:59:29,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:59:29,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:59:29,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:59:29,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:59:29,147 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_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 -> 183c064a530646119ada233c15fa830a0c2bc1a1 [2019-12-07 19:59:29,317 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:59:29,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:59:29,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:59:29,328 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:59:29,328 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:59:29,329 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 19:59:29,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/dc6e7582d/e89c63f43908464d88afeae525349ab9/FLAGa87c86551 [2019-12-07 19:59:29,695 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:59:29,696 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/sv-benchmarks/c/float-newlib/double_req_bl_0921.c [2019-12-07 19:59:29,701 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/dc6e7582d/e89c63f43908464d88afeae525349ab9/FLAGa87c86551 [2019-12-07 19:59:29,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/data/dc6e7582d/e89c63f43908464d88afeae525349ab9 [2019-12-07 19:59:29,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:59:29,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:59:29,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:59:29,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:59:29,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:59:29,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357db60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29, skipping insertion in model container [2019-12-07 19:59:29,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:59:29,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:59:29,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:59:29,865 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:59:29,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:59:29,942 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:59:29,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29 WrapperNode [2019-12-07 19:59:29,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:59:29,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:59:29,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:59:29,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:59:29,948 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:59:29,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:59:29,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:59:29,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:59:29,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:29,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... [2019-12-07 19:59:30,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:59:30,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:59:30,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:59:30,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:59:30,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 19:59:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 19:59:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 19:59:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:59:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 19:59:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:59:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:59:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 19:59:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 19:59:54,150 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:59:54,151 INFO L287 CfgBuilder]: Removed 14 assume(true) statements. [2019-12-07 19:59:54,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:59:54 BoogieIcfgContainer [2019-12-07 19:59:54,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:59:54,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:59:54,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:59:54,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:59:54,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:59:29" (1/3) ... [2019-12-07 19:59:54,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716a8e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:59:54, skipping insertion in model container [2019-12-07 19:59:54,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:59:29" (2/3) ... [2019-12-07 19:59:54,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716a8e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:59:54, skipping insertion in model container [2019-12-07 19:59:54,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:59:54" (3/3) ... [2019-12-07 19:59:54,156 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0921.c [2019-12-07 19:59:54,162 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:59:54,166 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 19:59:54,173 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 19:59:54,187 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:59:54,188 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:59:54,188 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:59:54,188 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:59:54,188 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:59:54,188 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:59:54,188 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:59:54,188 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:59:54,197 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-12-07 19:59:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 19:59:54,201 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:59:54,201 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:59:54,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:59:54,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:59:54,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2019-12-07 19:59:54,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:59:54,212 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370269727] [2019-12-07 19:59:54,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 19:59:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:59:55,025 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:59:55,029 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:59:55,040 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 19:59:55,041 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:59:55,044 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 19:59:55,045 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370269727] [2019-12-07 19:59:55,046 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:59:55,046 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:59:55,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447080237] [2019-12-07 19:59:55,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:59:55,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:59:55,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:59:55,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:59:55,061 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2019-12-07 19:59:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:59:55,075 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2019-12-07 19:59:55,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:59:55,076 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 19:59:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:59:55,084 INFO L225 Difference]: With dead ends: 56 [2019-12-07 19:59:55,084 INFO L226 Difference]: Without dead ends: 26 [2019-12-07 19:59:55,087 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:59:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-12-07 19:59:55,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-12-07 19:59:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 19:59:55,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2019-12-07 19:59:55,111 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2019-12-07 19:59:55,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:59:55,112 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2019-12-07 19:59:55,112 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:59:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2019-12-07 19:59:55,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 19:59:55,112 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:59:55,113 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:59:55,313 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:59:55,314 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:59:55,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:59:55,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2019-12-07 19:59:55,318 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:59:55,319 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932679130] [2019-12-07 19:59:55,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/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 19:59:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:59:56,168 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 7 conjunts are in the unsatisfiable core [2019-12-07 19:59:56,170 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:59:56,249 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 19:59:56,250 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:59:56,314 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 19:59:56,314 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932679130] [2019-12-07 19:59:56,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:59:56,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 19:59:56,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853519435] [2019-12-07 19:59:56,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:59:56,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:59:56,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:59:56,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:59:56,316 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 6 states. [2019-12-07 20:00:02,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:00:02,413 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2019-12-07 20:00:03,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:00:03,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-12-07 20:00:03,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:00:03,103 INFO L225 Difference]: With dead ends: 41 [2019-12-07 20:00:03,103 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 20:00:03,104 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 20:00:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 20:00:03,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 26. [2019-12-07 20:00:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 20:00:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2019-12-07 20:00:03,109 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 35 transitions. Word has length 11 [2019-12-07 20:00:03,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:00:03,109 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 35 transitions. [2019-12-07 20:00:03,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:00:03,110 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2019-12-07 20:00:03,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 20:00:03,110 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:00:03,110 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:00:03,311 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 20:00:03,312 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:00:03,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:00:03,314 INFO L82 PathProgramCache]: Analyzing trace with hash -594923761, now seen corresponding path program 1 times [2019-12-07 20:00:03,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:00:03,316 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175618169] [2019-12-07 20:00:03,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 20:00:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:00:03,459 INFO L264 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 20:00:03,460 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:00:03,537 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 20:00:03,537 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:00:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:00:04,320 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175618169] [2019-12-07 20:00:04,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:00:04,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-12-07 20:00:04,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67107164] [2019-12-07 20:00:04,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 20:00:04,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:00:04,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 20:00:04,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:00:04,322 INFO L87 Difference]: Start difference. First operand 26 states and 35 transitions. Second operand 10 states. [2019-12-07 20:00:49,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:00:49,025 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2019-12-07 20:00:49,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 20:00:49,026 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-12-07 20:00:49,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:00:49,027 INFO L225 Difference]: With dead ends: 36 [2019-12-07 20:00:49,027 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 20:00:49,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-07 20:00:49,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 20:00:49,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-12-07 20:00:49,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 20:00:49,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2019-12-07 20:00:49,032 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 11 [2019-12-07 20:00:49,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:00:49,032 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2019-12-07 20:00:49,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 20:00:49,032 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2019-12-07 20:00:49,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 20:00:49,033 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:00:49,033 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:00:49,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 20:00:49,234 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:00:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:00:49,235 INFO L82 PathProgramCache]: Analyzing trace with hash 464451163, now seen corresponding path program 1 times [2019-12-07 20:00:49,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:00:49,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674049812] [2019-12-07 20:00:49,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 20:00:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:00:49,423 INFO L264 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 20:00:49,425 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:00:49,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:00:49,512 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:00:53,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:00:53,601 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1674049812] [2019-12-07 20:00:53,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:00:53,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 20:00:53,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092134628] [2019-12-07 20:00:53,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:00:53,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:00:53,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:00:53,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=35, Unknown=2, NotChecked=0, Total=56 [2019-12-07 20:00:53,603 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 8 states. [2019-12-07 20:00:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:00:57,853 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-12-07 20:00:58,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 20:00:58,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-12-07 20:00:58,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:00:58,604 INFO L225 Difference]: With dead ends: 47 [2019-12-07 20:00:58,604 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 20:00:58,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=41, Invalid=67, Unknown=2, NotChecked=0, Total=110 [2019-12-07 20:00:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 20:00:58,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2019-12-07 20:00:58,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-12-07 20:00:58,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2019-12-07 20:00:58,608 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 17 [2019-12-07 20:00:58,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:00:58,609 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2019-12-07 20:00:58,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:00:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2019-12-07 20:00:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 20:00:58,609 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:00:58,610 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:00:58,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 20:00:58,811 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:00:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:00:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash -2124593878, now seen corresponding path program 1 times [2019-12-07 20:00:58,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 20:00:58,813 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1475531471] [2019-12-07 20:00:58,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 20:00:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:00:59,218 INFO L264 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 20:00:59,220 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:00:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:00:59,319 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:00:59,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:00:59,408 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1475531471] [2019-12-07 20:00:59,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:00:59,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-12-07 20:00:59,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182407985] [2019-12-07 20:00:59,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 20:00:59,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 20:00:59,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 20:00:59,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-07 20:00:59,410 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand 8 states. [2019-12-07 20:00:59,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:00:59,556 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-12-07 20:00:59,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:00:59,557 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-12-07 20:00:59,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:00:59,557 INFO L225 Difference]: With dead ends: 26 [2019-12-07 20:00:59,557 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:00:59,558 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-12-07 20:00:59,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:00:59,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:00:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:00:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:00:59,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-12-07 20:00:59,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:00:59,559 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:00:59,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 20:00:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:00:59,559 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:00:59,759 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 20:00:59,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:00:59,877 INFO L242 CegarLoopResult]: At program point L122(lines 45 124) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 20:00:59,877 INFO L246 CegarLoopResult]: For program point L85(lines 85 92) no Hoare annotation was computed. [2019-12-07 20:00:59,877 INFO L246 CegarLoopResult]: For program point L139(lines 139 142) no Hoare annotation was computed. [2019-12-07 20:00:59,877 INFO L246 CegarLoopResult]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2019-12-07 20:00:59,877 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-12-07 20:00:59,877 INFO L242 CegarLoopResult]: At program point L65-2(lines 65 69) the Hoare annotation is: false [2019-12-07 20:00:59,877 INFO L242 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-12-07 20:00:59,877 INFO L246 CegarLoopResult]: For program point L94(lines 94 99) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 140) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point L119(lines 119 122) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point L86(lines 86 91) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L249 CegarLoopResult]: At program point L144(lines 129 145) the Hoare annotation is: true [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point L111(lines 111 123) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2019-12-07 20:00:59,878 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L58(lines 58 70) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L58-1(lines 45 124) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L50-1(lines 50 55) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L242 CegarLoopResult]: At program point L50-2(lines 50 55) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven)) [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L50-3(lines 50 55) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L59(lines 59 60) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L84(lines 84 100) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L113(lines 113 117) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L76-1(lines 76 81) no Hoare annotation was computed. [2019-12-07 20:00:59,879 INFO L242 CegarLoopResult]: At program point L76-2(lines 76 81) the Hoare annotation is: false [2019-12-07 20:00:59,879 INFO L246 CegarLoopResult]: For program point L76-3(lines 76 81) no Hoare annotation was computed. [2019-12-07 20:00:59,886 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,887 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,890 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,890 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,891 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,894 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 20:00:59,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,895 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 20:00:59,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:00:59 BoogieIcfgContainer [2019-12-07 20:00:59,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:00:59,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:00:59,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:00:59,897 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:00:59,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:59:54" (3/4) ... [2019-12-07 20:00:59,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:00:59,907 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-12-07 20:00:59,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 20:00:59,908 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 20:00:59,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 20:00:59,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-12-07 20:00:59,926 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2019-12-07 20:00:59,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f061b8db-ab8e-4bad-8452-7fec3c2dc3da/bin/utaipan/witness.graphml [2019-12-07 20:00:59,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:00:59,954 INFO L168 Benchmark]: Toolchain (without parser) took 90240.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.0 MB in the beginning and 892.9 MB in the end (delta: 58.1 MB). Peak memory consumption was 198.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:00:59,954 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:00:59,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:00:59,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:00:59,954 INFO L168 Benchmark]: Boogie Preprocessor took 26.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:00:59,955 INFO L168 Benchmark]: RCFGBuilder took 24149.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:00:59,955 INFO L168 Benchmark]: TraceAbstraction took 65744.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.8 MB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:00:59,955 INFO L168 Benchmark]: Witness Printer took 55.48 ms. Allocated memory is still 1.2 GB. Free memory was 899.8 MB in the beginning and 892.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 20:00:59,957 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 24149.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 65744.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 899.8 MB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 11.5 GB. * Witness Printer took 55.48 ms. Allocated memory is still 1.2 GB. Free memory was 899.8 MB in the beginning and 892.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 140]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant [2019-12-07 20:00:59,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,961 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,962 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant [2019-12-07 20:00:59,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,963 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant [2019-12-07 20:00:59,964 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 20:00:59,964 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,964 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-12-07 20:00:59,965 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-12-07 20:00:59,965 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-12-07 20:00:59,965 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Result: SAFE, OverallTime: 65.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 56.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 113 SDtfs, 114 SDslu, 288 SDs, 0 SdLazy, 121 SolverSat, 19 SolverUnsat, 20 SolverUnknown, 0 SolverNotchecked, 52.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 23 QuantifiedInterpolants, 9392 SizeOfPredicates, 31 NumberOfNonLiveVariables, 268 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...