./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fa375491f6ee23468a1ede5cb9608fff6035ced ......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fa375491f6ee23468a1ede5cb9608fff6035ced ....................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:27,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:27,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:27,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:27,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:27,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:27,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:27,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:27,447 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:27,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:27,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:27,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:27,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:27,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:27,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:27,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:27,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:27,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:27,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:27,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:27,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:27,470 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:27,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:27,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:27,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:27,475 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:27,475 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:27,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:27,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:27,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:27,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:27,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:27,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:27,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:27,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:27,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:27,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:27,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:27,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:27,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:27,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:27,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:56:27,507 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:27,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:27,508 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:27,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:27,508 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:27,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:27,508 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:27,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:27,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:27,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:27,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:27,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:27,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:27,514 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:27,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:27,514 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:27,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:27,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:27,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:27,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:27,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:27,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:27,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:27,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:27,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:27,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:27,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:27,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:27,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-25 08:56:27,652 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:27,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:27,664 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:27,665 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:27,665 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:27,666 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-25 08:56:27,712 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/2d6938f7c/9f909cbb9d874a97912a6aa1a9e44403/FLAG7a470d684 [2019-11-25 08:56:28,066 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:28,066 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-25 08:56:28,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/2d6938f7c/9f909cbb9d874a97912a6aa1a9e44403/FLAG7a470d684 [2019-11-25 08:56:28,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/2d6938f7c/9f909cbb9d874a97912a6aa1a9e44403 [2019-11-25 08:56:28,086 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:28,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:28,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:28,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:28,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:28,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec9292b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28, skipping insertion in model container [2019-11-25 08:56:28,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:28,117 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:28,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:28,419 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:28,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:28,489 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:28,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28 WrapperNode [2019-11-25 08:56:28,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:28,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:28,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:28,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:28,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,506 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:28,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:28,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:28,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:28,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... [2019-11-25 08:56:28,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:28,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:28,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:28,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:28,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:56:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:56:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:56:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:28,976 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:28,977 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:56:28,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:28 BoogieIcfgContainer [2019-11-25 08:56:28,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:28,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:28,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:28,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:28,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:28" (1/3) ... [2019-11-25 08:56:28,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb8835d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:28, skipping insertion in model container [2019-11-25 08:56:28,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:28" (2/3) ... [2019-11-25 08:56:28,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eb8835d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:28, skipping insertion in model container [2019-11-25 08:56:28,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:28" (3/3) ... [2019-11-25 08:56:28,984 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-25 08:56:28,992 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:28,997 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:29,006 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:29,024 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:29,024 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:29,024 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:29,025 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:29,025 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:29,025 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:29,025 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:29,025 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:29,036 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-25 08:56:29,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:56:29,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:29,042 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:29,043 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:29,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:29,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-25 08:56:29,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:29,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243323446] [2019-11-25 08:56:29,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:29,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243323446] [2019-11-25 08:56:29,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:29,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:56:29,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259748607] [2019-11-25 08:56:29,148 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:56:29,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:29,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:56:29,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:56:29,159 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-25 08:56:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:29,174 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-25 08:56:29,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:56:29,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-25 08:56:29,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:29,184 INFO L225 Difference]: With dead ends: 66 [2019-11-25 08:56:29,184 INFO L226 Difference]: Without dead ends: 31 [2019-11-25 08:56:29,187 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:56:29,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-25 08:56:29,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-25 08:56:29,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:56:29,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-25 08:56:29,217 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-25 08:56:29,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:29,217 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-25 08:56:29,217 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:56:29,217 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-25 08:56:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:56:29,218 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:29,218 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:29,218 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:29,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:29,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-25 08:56:29,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:29,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274050130] [2019-11-25 08:56:29,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:29,310 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:29,310 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:56:29,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:29 BoogieIcfgContainer [2019-11-25 08:56:29,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:29,332 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:29,332 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:29,332 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:29,333 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:28" (3/4) ... [2019-11-25 08:56:29,335 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:56:29,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:29,337 INFO L168 Benchmark]: Toolchain (without parser) took 1249.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,337 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:29,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -211.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,339 INFO L168 Benchmark]: Boogie Preprocessor took 27.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,340 INFO L168 Benchmark]: RCFGBuilder took 421.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,341 INFO L168 Benchmark]: TraceAbstraction took 352.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,341 INFO L168 Benchmark]: Witness Printer took 3.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:29,345 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 401.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 942.0 MB in the beginning and 1.2 GB in the end (delta: -211.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 421.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 352.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L26] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] double res = floor_double(x); [L80] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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=34occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:31,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:31,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:31,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:31,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:31,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:31,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:31,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:31,105 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:31,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:31,107 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:31,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:31,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:31,109 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:31,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:31,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:31,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:31,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:31,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:31,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:31,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:31,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:31,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:31,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:31,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:31,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:31,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:31,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:31,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:31,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:31,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:31,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:31,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:31,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:31,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:31,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:31,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:31,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:31,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:31,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:31,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:31,144 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:56:31,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:31,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:31,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:31,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:31,159 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:31,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:31,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:31,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:31,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:31,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:31,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:31,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:31,161 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:56:31,161 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:56:31,161 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:56:31,161 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:31,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:31,162 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:31,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:31,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:31,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:31,162 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:31,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:31,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:31,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:31,163 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:31,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:31,164 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:56:31,164 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:56:31,164 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:31,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:56:31,165 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2019-11-25 08:56:31,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:31,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:31,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:31,478 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:31,479 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:31,480 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-25 08:56:31,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/869040062/722a0d984a7c47c0bd6f4eb131607615/FLAG13351d0fc [2019-11-25 08:56:31,932 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:31,933 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/sv-benchmarks/c/float-newlib/double_req_bl_1051.c [2019-11-25 08:56:31,943 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/869040062/722a0d984a7c47c0bd6f4eb131607615/FLAG13351d0fc [2019-11-25 08:56:32,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/data/869040062/722a0d984a7c47c0bd6f4eb131607615 [2019-11-25 08:56:32,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:32,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:32,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:32,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:32,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:32,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59fd513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32, skipping insertion in model container [2019-11-25 08:56:32,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:32,385 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:32,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:32,600 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:32,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:32,714 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:32,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32 WrapperNode [2019-11-25 08:56:32,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:32,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:32,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:32,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:32,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:32,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:32,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:32,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:32,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,792 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... [2019-11-25 08:56:32,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:32,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:32,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:32,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:32,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:32,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-25 08:56:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-25 08:56:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:56:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:32,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:32,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:56:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:33,931 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:33,932 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-25 08:56:33,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:33 BoogieIcfgContainer [2019-11-25 08:56:33,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:33,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:33,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:33,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:33,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:32" (1/3) ... [2019-11-25 08:56:33,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a6df31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:33, skipping insertion in model container [2019-11-25 08:56:33,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:32" (2/3) ... [2019-11-25 08:56:33,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65a6df31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:33, skipping insertion in model container [2019-11-25 08:56:33,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:33" (3/3) ... [2019-11-25 08:56:33,938 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2019-11-25 08:56:33,946 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:33,952 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:33,961 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:33,981 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:33,981 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:33,981 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:33,982 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:33,982 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:33,982 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:33,982 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:33,982 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:33,994 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-25 08:56:33,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:56:33,999 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:34,000 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:34,000 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:34,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:34,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2019-11-25 08:56:34,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:56:34,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351231793] [2019-11-25 08:56:34,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-25 08:56:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:34,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:56:34,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:34,116 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:56:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:34,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351231793] [2019-11-25 08:56:34,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:34,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:56:34,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116888226] [2019-11-25 08:56:34,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:56:34,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:56:34,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:56:34,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:56:34,135 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-25 08:56:34,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:34,155 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2019-11-25 08:56:34,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:56:34,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-25 08:56:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:34,166 INFO L225 Difference]: With dead ends: 66 [2019-11-25 08:56:34,166 INFO L226 Difference]: Without dead ends: 31 [2019-11-25 08:56:34,168 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:56:34,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-25 08:56:34,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-25 08:56:34,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:56:34,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2019-11-25 08:56:34,199 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2019-11-25 08:56:34,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:34,199 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2019-11-25 08:56:34,199 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:56:34,200 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2019-11-25 08:56:34,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:56:34,200 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:34,200 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:34,410 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:56:34,411 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:34,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:34,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2019-11-25 08:56:34,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:56:34,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216390623] [2019-11-25 08:56:34,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-25 08:56:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:34,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-25 08:56:34,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:34,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:56:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:34,703 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:56:34,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:34,811 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216390623] [2019-11-25 08:56:34,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:34,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-25 08:56:34,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022694219] [2019-11-25 08:56:34,812 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-25 08:56:34,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:56:34,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-25 08:56:34,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:56:34,813 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2019-11-25 08:56:35,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:35,841 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2019-11-25 08:56:35,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:56:35,841 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-25 08:56:35,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:35,842 INFO L225 Difference]: With dead ends: 42 [2019-11-25 08:56:35,842 INFO L226 Difference]: Without dead ends: 21 [2019-11-25 08:56:35,846 INFO L630 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 [2019-11-25 08:56:35,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-25 08:56:35,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-25 08:56:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-25 08:56:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-11-25 08:56:35,850 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2019-11-25 08:56:35,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:35,850 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-11-25 08:56:35,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-25 08:56:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-11-25 08:56:35,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:56:35,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:35,851 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:36,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:56:36,063 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:36,064 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2019-11-25 08:56:36,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:56:36,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939752950] [2019-11-25 08:56:36,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-25 08:56:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:36,248 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:56:36,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:36,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:36,364 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:56:36,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:36,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939752950] [2019-11-25 08:56:36,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:36,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:56:36,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50451222] [2019-11-25 08:56:36,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:56:36,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:56:36,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:56:36,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:56:36,504 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2019-11-25 08:56:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:36,692 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2019-11-25 08:56:36,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:56:36,693 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-25 08:56:36,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:36,693 INFO L225 Difference]: With dead ends: 21 [2019-11-25 08:56:36,693 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:56:36,694 INFO L630 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 [2019-11-25 08:56:36,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:56:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:56:36,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:56:36,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:56:36,694 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-11-25 08:56:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:36,695 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:36,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:56:36,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:36,695 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:56:36,895 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:56:36,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:56:37,016 INFO L444 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2019-11-25 08:56:37,017 INFO L444 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2019-11-25 08:56:37,017 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2019-11-25 08:56:37,017 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) [2019-11-25 08:56:37,017 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2019-11-25 08:56:37,017 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:56:37,017 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:56:37,017 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2019-11-25 08:56:37,018 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-25 08:56:37,019 INFO L440 ceAbstractionStarter]: At program point L80(line 80) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-25 08:56:37,019 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2019-11-25 08:56:37,019 INFO L447 ceAbstractionStarter]: At program point L97(lines 82 98) the Hoare annotation is: true [2019-11-25 08:56:37,019 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2019-11-25 08:56:37,019 INFO L444 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2019-11-25 08:56:37,019 INFO L444 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2019-11-25 08:56:37,019 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2019-11-25 08:56:37,019 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2019-11-25 08:56:37,020 INFO L444 ceAbstractionStarter]: For program point L92(lines 92 95) no Hoare annotation was computed. [2019-11-25 08:56:37,021 INFO L444 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2019-11-25 08:56:37,021 INFO L440 ceAbstractionStarter]: At program point L76(lines 16 77) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_floor_double_~x ULTIMATE.start_floor_double_~x)) (not (fp.eq |ULTIMATE.start_floor_double_#res| |ULTIMATE.start_floor_double_#res|))) [2019-11-25 08:56:37,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:37 BoogieIcfgContainer [2019-11-25 08:56:37,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:37,039 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:37,039 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:37,041 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:37,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:33" (3/4) ... [2019-11-25 08:56:37,044 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:56:37,054 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-25 08:56:37,054 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 08:56:37,054 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:56:37,079 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2019-11-25 08:56:37,080 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2019-11-25 08:56:37,111 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_bf7c7fc5-c97f-4622-9e35-25596e6d6f29/bin/uautomizer/witness.graphml [2019-11-25 08:56:37,118 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:37,120 INFO L168 Benchmark]: Toolchain (without parser) took 4767.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -55.9 MB). Peak memory consumption was 103.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:37,120 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:37,120 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:37,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:37,123 INFO L168 Benchmark]: Boogie Preprocessor took 33.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:37,123 INFO L168 Benchmark]: RCFGBuilder took 1136.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:37,123 INFO L168 Benchmark]: TraceAbstraction took 3105.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 106.8 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:37,124 INFO L168 Benchmark]: Witness Printer took 78.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:37,125 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1136.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3105.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 106.8 MB). Peak memory consumption was 106.8 MB. Max. memory is 11.5 GB. * Witness Printer took 78.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: 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: 80]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 68 SDtfs, 27 SDslu, 75 SDs, 0 SdLazy, 60 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s 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=34occurred 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, 0.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3143 SizeOfPredicates, 18 NumberOfNonLiveVariables, 114 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...