./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aad197397f99c266313f2caa0ca0a263e036c988 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aad197397f99c266313f2caa0ca0a263e036c988 .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:25,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:25,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:25,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:25,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:25,703 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:25,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:25,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:25,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:25,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:25,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:25,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:25,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:25,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:25,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:25,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:25,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:25,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:25,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:25,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:25,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:25,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:25,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:25,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:25,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:25,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:25,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:25,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:25,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:25,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:25,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:25,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:25,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:25,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:25,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:25,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:25,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:25,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:25,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:25,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:25,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:25,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:58:25,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:25,780 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:25,780 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:25,780 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:25,781 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:25,781 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:25,781 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:58:25,781 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:25,781 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:25,782 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:58:25,782 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:58:25,782 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:25,782 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:58:25,782 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:58:25,782 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:58:25,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:25,783 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:25,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:58:25,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:25,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:25,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:25,784 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:25,784 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:25,785 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:25,785 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:25,785 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:25,785 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:25,785 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:25,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:25,786 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:25,786 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:25,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:25,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:25,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:25,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:25,787 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:58:25,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:58:25,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:25,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:25,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:25,788 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad197397f99c266313f2caa0ca0a263e036c988 [2020-11-22 12:58:26,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:26,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:26,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:26,077 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:26,078 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:26,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-22 12:58:26,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/e7e8f18cc/bc4e6c73ceda4d06bf595e8798c856bd/FLAG8ae12398a [2020-11-22 12:58:26,535 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:26,536 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-22 12:58:26,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/e7e8f18cc/bc4e6c73ceda4d06bf595e8798c856bd/FLAG8ae12398a [2020-11-22 12:58:26,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/e7e8f18cc/bc4e6c73ceda4d06bf595e8798c856bd [2020-11-22 12:58:26,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:26,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:26,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:26,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:26,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:26,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:26" (1/1) ... [2020-11-22 12:58:26,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b7e55d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:26, skipping insertion in model container [2020-11-22 12:58:26,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:26" (1/1) ... [2020-11-22 12:58:26,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:26,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:27,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:27,195 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:27,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:27,237 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:27,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27 WrapperNode [2020-11-22 12:58:27,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:27,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:27,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:27,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:27,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:27,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:27,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:27,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:27,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... [2020-11-22 12:58:27,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:27,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:27,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:27,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:27,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/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 [2020-11-22 12:58:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:58:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:58:27,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:58:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:58:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:27,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:27,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:58:27,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:28,130 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:28,130 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-22 12:58:28,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:28 BoogieIcfgContainer [2020-11-22 12:58:28,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:28,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:28,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:28,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:28,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:26" (1/3) ... [2020-11-22 12:58:28,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621a7ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:28, skipping insertion in model container [2020-11-22 12:58:28,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:27" (2/3) ... [2020-11-22 12:58:28,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621a7ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:28, skipping insertion in model container [2020-11-22 12:58:28,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:28" (3/3) ... [2020-11-22 12:58:28,141 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-11-22 12:58:28,151 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:28,155 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:28,168 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:58:28,190 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:28,191 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:28,191 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:28,191 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:28,191 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:28,191 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:28,191 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:28,192 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:28,203 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-11-22 12:58:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 12:58:28,208 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:28,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:28,209 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:28,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:28,214 INFO L82 PathProgramCache]: Analyzing trace with hash 561384657, now seen corresponding path program 1 times [2020-11-22 12:58:28,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:28,224 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807608115] [2020-11-22 12:58:28,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:28,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807608115] [2020-11-22 12:58:28,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:28,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:58:28,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178776307] [2020-11-22 12:58:28,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:28,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:58:28,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:28,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:28,360 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-11-22 12:58:28,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:28,373 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-11-22 12:58:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:28,375 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 12:58:28,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:28,383 INFO L225 Difference]: With dead ends: 35 [2020-11-22 12:58:28,383 INFO L226 Difference]: Without dead ends: 16 [2020-11-22 12:58:28,386 INFO L677 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 [2020-11-22 12:58:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-22 12:58:28,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-22 12:58:28,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 12:58:28,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2020-11-22 12:58:28,416 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2020-11-22 12:58:28,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:28,417 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2020-11-22 12:58:28,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2020-11-22 12:58:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 12:58:28,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:28,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:28,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:58:28,418 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:28,419 INFO L82 PathProgramCache]: Analyzing trace with hash -596181078, now seen corresponding path program 1 times [2020-11-22 12:58:28,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:28,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301335597] [2020-11-22 12:58:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:28,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:28,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:28,521 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:58:28,521 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:28,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:58:28,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:28 BoogieIcfgContainer [2020-11-22 12:58:28,548 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:28,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:28,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:28,549 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:28,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:28" (3/4) ... [2020-11-22 12:58:28,552 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:58:28,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:28,554 INFO L168 Benchmark]: Toolchain (without parser) took 1605.60 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 74.9 MB in the beginning and 88.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:28,555 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:28,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.31 ms. Allocated memory is still 107.0 MB. Free memory was 74.9 MB in the beginning and 81.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:28,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.47 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 79.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:28,557 INFO L168 Benchmark]: Boogie Preprocessor took 45.59 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 78.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:28,558 INFO L168 Benchmark]: RCFGBuilder took 808.13 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 78.5 MB in the beginning and 112.0 MB in the end (delta: -33.5 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:28,559 INFO L168 Benchmark]: TraceAbstraction took 413.70 ms. Allocated memory is still 138.4 MB. Free memory was 111.2 MB in the beginning and 88.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:28,559 INFO L168 Benchmark]: Witness Printer took 3.83 ms. Allocated memory is still 138.4 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:28,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 77.6 MB. Free memory is still 35.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.31 ms. Allocated memory is still 107.0 MB. Free memory was 74.9 MB in the beginning and 81.5 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.47 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 79.8 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 45.59 ms. Allocated memory is still 107.0 MB. Free memory was 79.8 MB in the beginning and 78.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 808.13 ms. Allocated memory was 107.0 MB in the beginning and 138.4 MB in the end (delta: 31.5 MB). Free memory was 78.5 MB in the beginning and 112.0 MB in the end (delta: -33.5 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 413.70 ms. Allocated memory is still 138.4 MB. Free memory was 111.2 MB in the beginning and 88.9 MB in the end (delta: 22.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.83 ms. Allocated memory is still 138.4 MB. Free memory is still 88.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55, overapproximation of bitwiseAnd at line 30. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L92] double x = 0.0 / 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L53] COND TRUE j0 > 51 [L54] COND TRUE j0 == 0x400 [L55] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double res = ceil_double(x); [L17] return x != x; [L96] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1091.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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=18occurred 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, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-22 12:58:30,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:30,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:30,975 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:30,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:30,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:30,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:30,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:30,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:30,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:30,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:30,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:31,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:31,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:31,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:31,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:31,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:31,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:31,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:31,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:31,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:31,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:31,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:31,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:31,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:31,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:31,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:31,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:31,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:31,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:31,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:31,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:31,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:31,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:31,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:31,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:31,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:31,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:31,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:31,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:31,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:31,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:58:31,102 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:31,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:31,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:31,105 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:31,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:31,105 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:31,106 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:31,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:31,106 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:31,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:31,108 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:31,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:31,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:31,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:31,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:31,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:31,110 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:31,110 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:58:31,110 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:58:31,110 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:31,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:31,111 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:31,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:31,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:31,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:58:31,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:31,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:31,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:31,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:31,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:31,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:31,113 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:58:31,113 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:58:31,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:31,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:31,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:31,114 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad197397f99c266313f2caa0ca0a263e036c988 [2020-11-22 12:58:31,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:31,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:31,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:31,559 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:31,559 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:31,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-22 12:58:31,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/ec23280e8/cfc528f6b87c4a96aac5e28359e83bfb/FLAG54624f7ed [2020-11-22 12:58:32,190 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:32,190 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-22 12:58:32,197 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/ec23280e8/cfc528f6b87c4a96aac5e28359e83bfb/FLAG54624f7ed [2020-11-22 12:58:32,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/data/ec23280e8/cfc528f6b87c4a96aac5e28359e83bfb [2020-11-22 12:58:32,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:32,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:32,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:32,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:32,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:32,551 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77282be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32, skipping insertion in model container [2020-11-22 12:58:32,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:32,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:32,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:32,726 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:32,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:32,772 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:32,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32 WrapperNode [2020-11-22 12:58:32,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:32,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:32,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:32,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:32,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:32,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:32,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:32,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:32,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... [2020-11-22 12:58:32,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:32,924 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:32,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:32,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:32,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/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 [2020-11-22 12:58:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-22 12:58:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-22 12:58:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:58:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:58:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:32,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:58:32,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:34,679 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:34,682 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-22 12:58:34,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:34 BoogieIcfgContainer [2020-11-22 12:58:34,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:34,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:34,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:34,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:34,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:32" (1/3) ... [2020-11-22 12:58:34,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5464bb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:34, skipping insertion in model container [2020-11-22 12:58:34,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:32" (2/3) ... [2020-11-22 12:58:34,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5464bb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:34, skipping insertion in model container [2020-11-22 12:58:34,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:34" (3/3) ... [2020-11-22 12:58:34,692 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-11-22 12:58:34,699 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:34,703 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:34,713 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:58:34,743 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:34,743 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:34,743 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:34,743 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:34,743 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:34,744 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:34,744 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:34,744 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-22 12:58:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 12:58:34,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:34,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:34,761 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:34,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-11-22 12:58:34,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:34,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105726872] [2020-11-22 12:58:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/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 [2020-11-22 12:58:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:34,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:58:34,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:34,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:34,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:34,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105726872] [2020-11-22 12:58:34,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:34,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:58:34,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467697060] [2020-11-22 12:58:34,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:34,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:34,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:34,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:34,941 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-11-22 12:58:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:34,958 INFO L93 Difference]: Finished difference Result 67 states and 105 transitions. [2020-11-22 12:58:34,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:34,959 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-22 12:58:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:34,968 INFO L225 Difference]: With dead ends: 67 [2020-11-22 12:58:34,968 INFO L226 Difference]: Without dead ends: 31 [2020-11-22 12:58:34,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:34,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-22 12:58:35,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-22 12:58:35,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-22 12:58:35,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-11-22 12:58:35,015 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-11-22 12:58:35,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:35,016 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-22 12:58:35,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:35,016 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-22 12:58:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 12:58:35,017 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:35,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:35,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:58:35,232 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:35,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:35,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-11-22 12:58:35,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:35,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254627129] [2020-11-22 12:58:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/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 [2020-11-22 12:58:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:35,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-22 12:58:35,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:35,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:35,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:35,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254627129] [2020-11-22 12:58:35,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:35,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:58:35,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000599414] [2020-11-22 12:58:35,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:58:35,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:35,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:58:35,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:58:35,671 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2020-11-22 12:58:36,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:36,778 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-22 12:58:36,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 12:58:36,792 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-22 12:58:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:36,792 INFO L225 Difference]: With dead ends: 42 [2020-11-22 12:58:36,793 INFO L226 Difference]: Without dead ends: 21 [2020-11-22 12:58:36,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-11-22 12:58:36,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-22 12:58:36,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-22 12:58:36,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-22 12:58:36,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-22 12:58:36,797 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2020-11-22 12:58:36,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:36,797 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-22 12:58:36,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:58:36,798 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-22 12:58:36,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 12:58:36,798 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:36,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:37,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:58:37,008 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:37,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:37,009 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2020-11-22 12:58:37,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:37,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725285717] [2020-11-22 12:58:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/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 [2020-11-22 12:58:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:37,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:58:37,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:37,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:37,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:37,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:37,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725285717] [2020-11-22 12:58:37,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:37,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 12:58:37,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309862840] [2020-11-22 12:58:37,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:58:37,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:37,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:58:37,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:58:37,489 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-11-22 12:58:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:37,770 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-22 12:58:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:58:37,771 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-22 12:58:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:37,772 INFO L225 Difference]: With dead ends: 21 [2020-11-22 12:58:37,772 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:58:37,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:58:37,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:58:37,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:58:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:58:37,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:58:37,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-22 12:58:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:37,773 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:58:37,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:58:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:58:37,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:58:37,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:58:37,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:58:38,063 INFO L274 CegarLoopResult]: For program point L60(lines 60 61) no Hoare annotation was computed. [2020-11-22 12:58:38,063 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-22 12:58:38,063 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 12:58:38,063 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 12:58:38,063 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L53(lines 53 75) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L62(lines 62 74) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L54(lines 54 57) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L46(lines 46 51) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L96(lines 96 99) no Hoare annotation was computed. [2020-11-22 12:58:38,064 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L64(lines 64 71) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L31(lines 31 75) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L32(lines 32 52) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 12:58:38,065 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:58:38,066 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-11-22 12:58:38,066 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 29) the Hoare annotation is: (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) [2020-11-22 12:58:38,066 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-11-22 12:58:38,066 INFO L270 CegarLoopResult]: At program point L82(lines 21 83) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2020-11-22 12:58:38,066 INFO L274 CegarLoopResult]: For program point L33(lines 33 41) no Hoare annotation was computed. [2020-11-22 12:58:38,066 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:58:38,067 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-11-22 12:58:38,067 INFO L274 CegarLoopResult]: For program point L34(lines 34 40) no Hoare annotation was computed. [2020-11-22 12:58:38,067 INFO L274 CegarLoopResult]: For program point L76(lines 76 81) no Hoare annotation was computed. [2020-11-22 12:58:38,067 INFO L274 CegarLoopResult]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2020-11-22 12:58:38,067 INFO L274 CegarLoopResult]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2020-11-22 12:58:38,067 INFO L277 CegarLoopResult]: At program point L101(lines 85 102) the Hoare annotation is: true [2020-11-22 12:58:38,067 INFO L274 CegarLoopResult]: For program point L68(lines 68 69) no Hoare annotation was computed. [2020-11-22 12:58:38,067 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-11-22 12:58:38,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:38 BoogieIcfgContainer [2020-11-22 12:58:38,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:38,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:38,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:38,081 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:38,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:34" (3/4) ... [2020-11-22 12:58:38,084 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:58:38,094 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-22 12:58:38,094 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-22 12:58:38,095 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:58:38,095 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:58:38,118 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2020-11-22 12:58:38,119 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2020-11-22 12:58:38,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2ea4813c-290b-4b77-8dd0-9fd995c8e032/bin/utaipan/witness.graphml [2020-11-22 12:58:38,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:38,144 INFO L168 Benchmark]: Toolchain (without parser) took 5597.33 ms. Allocated memory was 54.5 MB in the beginning and 86.0 MB in the end (delta: 31.5 MB). Free memory was 33.1 MB in the beginning and 39.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:38,144 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:38,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.31 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 21.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:38,145 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.24 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 21.3 MB in the beginning and 54.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:38,146 INFO L168 Benchmark]: Boogie Preprocessor took 63.29 ms. Allocated memory is still 71.3 MB. Free memory was 54.2 MB in the beginning and 52.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:38,146 INFO L168 Benchmark]: RCFGBuilder took 1760.41 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 51.7 MB in the end (delta: 598.4 kB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:38,147 INFO L168 Benchmark]: TraceAbstraction took 3392.71 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 51.4 MB in the beginning and 42.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:38,147 INFO L168 Benchmark]: Witness Printer took 61.29 ms. Allocated memory is still 86.0 MB. Free memory was 42.7 MB in the beginning and 39.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:38,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 54.5 MB. Free memory is still 36.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 226.31 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 21.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.24 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 21.3 MB in the beginning and 54.2 MB in the end (delta: -32.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.29 ms. Allocated memory is still 71.3 MB. Free memory was 54.2 MB in the beginning and 52.3 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1760.41 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 51.7 MB in the end (delta: 598.4 kB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3392.71 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 51.4 MB in the beginning and 42.7 MB in the end (delta: 8.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * Witness Printer took 61.29 ms. Allocated memory is still 86.0 MB. Free memory was 42.7 MB in the beginning and 39.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 25 SDslu, 94 SDs, 0 SdLazy, 72 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3121 SizeOfPredicates, 18 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...