./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 0d806ca1b262345211037ccd3e4a22cabffa047b ........................................................................................................................................................................................................................................................................................ 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_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 0d806ca1b262345211037ccd3e4a22cabffa047b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 09:39:52,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:39:52,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:39:52,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:39:52,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:39:52,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:39:52,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:39:52,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:39:52,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:39:52,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:39:52,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:39:52,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:39:52,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:39:52,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:39:52,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:39:52,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:39:52,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:39:52,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:39:52,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:39:52,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:39:52,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:39:52,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:39:52,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:39:52,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:39:52,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:39:52,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:39:52,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:39:52,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:39:52,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:39:52,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:39:52,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:39:52,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:39:52,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:39:52,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:39:52,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:39:52,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:39:52,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:39:52,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:39:52,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:39:52,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:39:52,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:39:52,991 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:39:53,003 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:39:53,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:39:53,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:39:53,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:39:53,005 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:39:53,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:39:53,005 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:39:53,006 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:39:53,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:39:53,007 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:39:53,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:39:53,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:39:53,007 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:39:53,008 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:39:53,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:39:53,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:39:53,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:39:53,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:39:53,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:39:53,009 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:39:53,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:39:53,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:39:53,009 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_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2019-11-20 09:39:53,175 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:39:53,185 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:39:53,189 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:39:53,190 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:39:53,191 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:39:53,192 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-11-20 09:39:53,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/1fc4873af/a9fd204a43c644378ba23cdc3420d717/FLAG20b6653ec [2019-11-20 09:39:53,637 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:39:53,638 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-11-20 09:39:53,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/1fc4873af/a9fd204a43c644378ba23cdc3420d717/FLAG20b6653ec [2019-11-20 09:39:54,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/1fc4873af/a9fd204a43c644378ba23cdc3420d717 [2019-11-20 09:39:54,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:39:54,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:39:54,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:39:54,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:39:54,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:39:54,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a10450f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54, skipping insertion in model container [2019-11-20 09:39:54,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,022 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:39:54,045 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:39:54,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:39:54,338 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:39:54,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:39:54,389 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:39:54,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54 WrapperNode [2019-11-20 09:39:54,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:39:54,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:39:54,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:39:54,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:39:54,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:39:54,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:39:54,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:39:54,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:39:54,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... [2019-11-20 09:39:54,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:39:54,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:39:54,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:39:54,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:39:54,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 [2019-11-20 09:39:54,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 09:39:54,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 09:39:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 09:39:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:39:54,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:39:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 09:39:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:39:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:39:54,869 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:39:54,870 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 09:39:54,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:39:54 BoogieIcfgContainer [2019-11-20 09:39:54,871 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:39:54,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:39:54,873 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:39:54,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:39:54,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:39:54" (1/3) ... [2019-11-20 09:39:54,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797925ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:39:54, skipping insertion in model container [2019-11-20 09:39:54,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:54" (2/3) ... [2019-11-20 09:39:54,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797925ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:39:54, skipping insertion in model container [2019-11-20 09:39:54,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:39:54" (3/3) ... [2019-11-20 09:39:54,879 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2019-11-20 09:39:54,887 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:39:54,891 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:39:54,899 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:39:54,920 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:39:54,920 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:39:54,921 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:39:54,921 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:39:54,921 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:39:54,921 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:39:54,921 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:39:54,921 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:39:54,936 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-20 09:39:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:39:54,941 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:39:54,941 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:39:54,942 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:39:54,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:39:54,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2019-11-20 09:39:54,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:39:54,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468102180] [2019-11-20 09:39:54,953 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:39:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:39:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:39:55,053 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468102180] [2019-11-20 09:39:55,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:39:55,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 09:39:55,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264548915] [2019-11-20 09:39:55,058 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:39:55,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:39:55,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:39:55,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:39:55,069 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-20 09:39:55,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:39:55,084 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2019-11-20 09:39:55,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:39:55,085 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 09:39:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:39:55,093 INFO L225 Difference]: With dead ends: 64 [2019-11-20 09:39:55,093 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 09:39:55,096 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 [2019-11-20 09:39:55,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 09:39:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 09:39:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 09:39:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2019-11-20 09:39:55,124 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2019-11-20 09:39:55,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:39:55,124 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2019-11-20 09:39:55,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:39:55,124 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2019-11-20 09:39:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:39:55,125 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:39:55,125 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:39:55,126 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:39:55,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:39:55,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2019-11-20 09:39:55,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:39:55,126 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805977432] [2019-11-20 09:39:55,127 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:39:55,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:39:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:39:55,211 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:39:55,211 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 09:39:55,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:39:55 BoogieIcfgContainer [2019-11-20 09:39:55,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:39:55,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:39:55,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:39:55,240 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:39:55,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:39:54" (3/4) ... [2019-11-20 09:39:55,245 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 09:39:55,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:39:55,247 INFO L168 Benchmark]: Toolchain (without parser) took 1240.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:39:55,248 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:39:55,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-20 09:39:55,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.88 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. [2019-11-20 09:39:55,249 INFO L168 Benchmark]: Boogie Preprocessor took 29.98 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. [2019-11-20 09:39:55,250 INFO L168 Benchmark]: RCFGBuilder took 411.60 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:39:55,251 INFO L168 Benchmark]: TraceAbstraction took 367.58 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:39:55,251 INFO L168 Benchmark]: Witness Printer took 5.16 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. [2019-11-20 09:39:55,254 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.88 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 29.98 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 411.60 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: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 367.58 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.16 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = 0.0; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 47 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=33occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 09:39:57,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:39:57,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:39:57,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:39:57,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:39:57,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:39:57,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:39:57,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:39:57,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:39:57,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:39:57,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:39:57,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:39:57,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:39:57,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:39:57,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:39:57,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:39:57,338 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:39:57,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:39:57,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:39:57,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:39:57,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:39:57,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:39:57,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:39:57,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:39:57,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:39:57,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:39:57,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:39:57,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:39:57,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:39:57,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:39:57,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:39:57,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:39:57,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:39:57,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:39:57,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:39:57,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:39:57,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:39:57,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:39:57,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:39:57,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:39:57,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:39:57,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 09:39:57,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:39:57,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:39:57,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:39:57,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:39:57,377 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:39:57,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:39:57,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:39:57,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:39:57,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:39:57,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:39:57,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:39:57,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:39:57,379 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 09:39:57,379 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 09:39:57,380 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:39:57,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:39:57,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:39:57,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:39:57,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:39:57,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:39:57,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:39:57,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:39:57,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:39:57,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:39:57,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:39:57,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:39:57,383 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 09:39:57,383 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 09:39:57,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:39:57,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 09:39:57,384 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_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 -> 0d806ca1b262345211037ccd3e4a22cabffa047b [2019-11-20 09:39:57,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:39:57,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:39:57,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:39:57,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:39:57,701 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:39:57,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-11-20 09:39:57,754 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/4d02f509a/1aac31b5d4eb468c9e0a738003ccee2c/FLAG3286ba245 [2019-11-20 09:39:58,182 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:39:58,183 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2019-11-20 09:39:58,189 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/4d02f509a/1aac31b5d4eb468c9e0a738003ccee2c/FLAG3286ba245 [2019-11-20 09:39:58,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/data/4d02f509a/1aac31b5d4eb468c9e0a738003ccee2c [2019-11-20 09:39:58,612 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:39:58,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:39:58,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:39:58,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:39:58,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:39:58,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:39:58" (1/1) ... [2019-11-20 09:39:58,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1dcf24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:58, skipping insertion in model container [2019-11-20 09:39:58,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:39:58" (1/1) ... [2019-11-20 09:39:58,636 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:39:58,655 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:39:58,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:39:58,889 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:39:58,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:39:59,007 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:39:59,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59 WrapperNode [2019-11-20 09:39:59,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:39:59,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:39:59,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:39:59,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:39:59,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:39:59,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:39:59,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:39:59,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:39:59,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... [2019-11-20 09:39:59,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:39:59,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:39:59,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:39:59,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:39:59,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 [2019-11-20 09:39:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-20 09:39:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 09:39:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-20 09:39:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:39:59,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:39:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:39:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 09:39:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:40:00,362 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:40:00,362 INFO L285 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-20 09:40:00,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:40:00 BoogieIcfgContainer [2019-11-20 09:40:00,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:40:00,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:40:00,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:40:00,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:40:00,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:39:58" (1/3) ... [2019-11-20 09:40:00,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50949cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:40:00, skipping insertion in model container [2019-11-20 09:40:00,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:39:59" (2/3) ... [2019-11-20 09:40:00,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50949cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:40:00, skipping insertion in model container [2019-11-20 09:40:00,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:40:00" (3/3) ... [2019-11-20 09:40:00,372 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2019-11-20 09:40:00,380 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:40:00,387 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:40:00,397 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:40:00,425 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:40:00,425 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:40:00,425 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:40:00,425 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:40:00,426 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:40:00,426 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:40:00,426 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:40:00,426 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:40:00,444 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-20 09:40:00,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 09:40:00,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:40:00,452 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:40:00,453 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:40:00,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:40:00,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2019-11-20 09:40:00,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:40:00,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549953055] [2019-11-20 09:40:00,472 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 [2019-11-20 09:40:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:40:00,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 09:40:00,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:40:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:00,555 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:40:00,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:00,560 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549953055] [2019-11-20 09:40:00,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:40:00,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 09:40:00,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646394353] [2019-11-20 09:40:00,564 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 09:40:00,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:40:00,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 09:40:00,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:40:00,575 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-20 09:40:00,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:40:00,591 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2019-11-20 09:40:00,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 09:40:00,592 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 09:40:00,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:40:00,602 INFO L225 Difference]: With dead ends: 64 [2019-11-20 09:40:00,602 INFO L226 Difference]: Without dead ends: 30 [2019-11-20 09:40:00,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 09:40:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-20 09:40:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-20 09:40:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 09:40:00,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2019-11-20 09:40:00,638 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2019-11-20 09:40:00,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:40:00,639 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2019-11-20 09:40:00,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 09:40:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2019-11-20 09:40:00,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 09:40:00,640 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:40:00,640 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:40:00,841 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 09:40:00,841 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:40:00,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:40:00,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2019-11-20 09:40:00,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:40:00,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250155600] [2019-11-20 09:40:00,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 [2019-11-20 09:40:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:40:00,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 09:40:00,958 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:40:01,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:01,040 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:40:01,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:01,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250155600] [2019-11-20 09:40:01,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:40:01,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 09:40:01,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225500558] [2019-11-20 09:40:01,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 09:40:01,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:40:01,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 09:40:01,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 09:40:01,130 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2019-11-20 09:40:01,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:40:01,550 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2019-11-20 09:40:01,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 09:40:01,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 09:40:01,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:40:01,552 INFO L225 Difference]: With dead ends: 44 [2019-11-20 09:40:01,552 INFO L226 Difference]: Without dead ends: 24 [2019-11-20 09:40:01,553 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-20 09:40:01,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-20 09:40:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2019-11-20 09:40:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 09:40:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-11-20 09:40:01,558 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2019-11-20 09:40:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:40:01,559 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-11-20 09:40:01,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 09:40:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-11-20 09:40:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 09:40:01,560 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:40:01,560 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:40:01,761 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 09:40:01,761 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:40:01,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:40:01,762 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2019-11-20 09:40:01,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:40:01,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917168464] [2019-11-20 09:40:01,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/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 [2019-11-20 09:40:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:40:01,913 INFO L255 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 09:40:01,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:40:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:01,965 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:40:02,707 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-20 09:40:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:02,956 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917168464] [2019-11-20 09:40:02,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:40:02,957 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 09:40:02,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790783444] [2019-11-20 09:40:02,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 09:40:02,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:40:02,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 09:40:02,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:40:02,959 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2019-11-20 09:40:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:40:03,350 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-11-20 09:40:03,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 09:40:03,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2019-11-20 09:40:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:40:03,358 INFO L225 Difference]: With dead ends: 24 [2019-11-20 09:40:03,358 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 09:40:03,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:40:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 09:40:03,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 09:40:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 09:40:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-11-20 09:40:03,362 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2019-11-20 09:40:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:40:03,363 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-11-20 09:40:03,363 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 09:40:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-11-20 09:40:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 09:40:03,364 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:40:03,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:40:03,569 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 09:40:03,569 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:40:03,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:40:03,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2019-11-20 09:40:03,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:40:03,570 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [690665746] [2019-11-20 09:40:03,570 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-20 09:40:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:40:03,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 09:40:03,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:40:03,831 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2019-11-20 09:40:03,846 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-20 09:40:03,848 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2019-11-20 09:40:03,849 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:40:03,866 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:03,875 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:03,876 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2019-11-20 09:40:03,877 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 09:40:03,880 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:03,880 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:40:03,892 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:03,893 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:40:03,893 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2019-11-20 09:40:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:03,937 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:40:03,994 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:03,994 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 46 [2019-11-20 09:40:04,021 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,021 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 29 treesize of output 33 [2019-11-20 09:40:04,022 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,037 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,050 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,050 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2019-11-20 09:40:04,051 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,054 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,055 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,070 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,070 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 09:40:04,071 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:18 [2019-11-20 09:40:04,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:04,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [690665746] [2019-11-20 09:40:04,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:40:04,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-11-20 09:40:04,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481644782] [2019-11-20 09:40:04,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 09:40:04,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:40:04,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 09:40:04,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 09:40:04,084 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2019-11-20 09:40:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:40:04,206 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2019-11-20 09:40:04,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 09:40:04,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-20 09:40:04,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:40:04,208 INFO L225 Difference]: With dead ends: 24 [2019-11-20 09:40:04,208 INFO L226 Difference]: Without dead ends: 17 [2019-11-20 09:40:04,209 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-20 09:40:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-20 09:40:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-20 09:40:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-20 09:40:04,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2019-11-20 09:40:04,212 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 16 [2019-11-20 09:40:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:40:04,212 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2019-11-20 09:40:04,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 09:40:04,215 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2019-11-20 09:40:04,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 09:40:04,216 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:40:04,216 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:40:04,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 09:40:04,417 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:40:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:40:04,417 INFO L82 PathProgramCache]: Analyzing trace with hash -11232679, now seen corresponding path program 1 times [2019-11-20 09:40:04,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 09:40:04,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635420070] [2019-11-20 09:40:04,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-20 09:40:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:40:04,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 09:40:04,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:40:04,683 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2019-11-20 09:40:04,689 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,693 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,693 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,709 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,710 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-20 09:40:04,710 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:54, output treesize:24 [2019-11-20 09:40:04,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:04,778 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 09:40:04,856 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2019-11-20 09:40:04,859 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,864 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,864 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,869 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 09:40:04,869 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 09:40:04,869 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2019-11-20 09:40:05,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:40:05,085 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635420070] [2019-11-20 09:40:05,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:40:05,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 13 [2019-11-20 09:40:05,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784633756] [2019-11-20 09:40:05,086 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 09:40:05,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 09:40:05,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 09:40:05,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-11-20 09:40:05,087 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand 13 states. [2019-11-20 09:40:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:40:05,344 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2019-11-20 09:40:05,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 09:40:05,344 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2019-11-20 09:40:05,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:40:05,345 INFO L225 Difference]: With dead ends: 17 [2019-11-20 09:40:05,345 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 09:40:05,345 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2019-11-20 09:40:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 09:40:05,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 09:40:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 09:40:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 09:40:05,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-11-20 09:40:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:40:05,347 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:40:05,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 09:40:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:40:05,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 09:40:05,547 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 09:40:05,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-20 09:40:05,728 INFO L444 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-20 09:40:05,729 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2019-11-20 09:40:05,729 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2019-11-20 09:40:05,729 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2019-11-20 09:40:05,729 INFO L444 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2019-11-20 09:40:05,729 INFO L444 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2019-11-20 09:40:05,729 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-20 09:40:05,730 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= (_ +zero 11 53) ULTIMATE.start_main_~x~0) (= ULTIMATE.start_ceil_double_~x (_ +zero 11 53))) [2019-11-20 09:40:05,730 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-20 09:40:05,730 INFO L440 ceAbstractionStarter]: At program point L80(lines 19 81) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= (_ +zero 11 53) ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~x~0 |ULTIMATE.start_ceil_double_#res|) (= (bvor ULTIMATE.start_ceil_double_~i0~0 ULTIMATE.start_ceil_double_~i1~0) (_ bv0 32)) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (_ +zero 11 53)) (= (bvadd ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) v_skolemized_v_prenex_1_3) (_ bv20 32)))))) (= ULTIMATE.start_ceil_double_~x (_ +zero 11 53))) [2019-11-20 09:40:05,730 INFO L444 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2019-11-20 09:40:05,730 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-11-20 09:40:05,730 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 09:40:05,731 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2019-11-20 09:40:05,731 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2019-11-20 09:40:05,731 INFO L444 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2019-11-20 09:40:05,731 INFO L444 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2019-11-20 09:40:05,731 INFO L447 ceAbstractionStarter]: At program point L99(lines 83 100) the Hoare annotation is: true [2019-11-20 09:40:05,731 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2019-11-20 09:40:05,731 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 09:40:05,732 INFO L444 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2019-11-20 09:40:05,732 INFO L444 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2019-11-20 09:40:05,732 INFO L444 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-11-20 09:40:05,732 INFO L444 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2019-11-20 09:40:05,732 INFO L444 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2019-11-20 09:40:05,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,751 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,752 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,754 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,755 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:40:05 BoogieIcfgContainer [2019-11-20 09:40:05,758 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:40:05,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:40:05,759 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:40:05,759 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:40:05,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:40:00" (3/4) ... [2019-11-20 09:40:05,763 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 09:40:05,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 09:40:05,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 09:40:05,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 09:40:05,797 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil && ~Pluszero~LONGDOUBLE() == x) && x == \result) && ~bvor32(i0, i1) == 0bv32) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(j0, 1023bv32) == ~bvand32(2047bv32, ~bvashr32(v_skolemized_v_prenex_1_3[63:32], 20bv32)))) && x == ~Pluszero~LONGDOUBLE() [2019-11-20 09:40:05,829 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ee6b3b3-52c8-4759-8253-e0b4ae03d0a8/bin/uautomizer/witness.graphml [2019-11-20 09:40:05,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:40:05,831 INFO L168 Benchmark]: Toolchain (without parser) took 7217.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 961.8 MB in the beginning and 925.8 MB in the end (delta: 36.0 MB). Peak memory consumption was 188.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:40:05,831 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-20 09:40:05,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:40:05,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:40:05,833 INFO L168 Benchmark]: Boogie Preprocessor took 42.92 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. [2019-11-20 09:40:05,833 INFO L168 Benchmark]: RCFGBuilder took 1270.49 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. [2019-11-20 09:40:05,834 INFO L168 Benchmark]: TraceAbstraction took 5393.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.8 MB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:40:05,834 INFO L168 Benchmark]: Witness Printer took 71.08 ms. Allocated memory is still 1.2 GB. Free memory is still 925.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:40:05,839 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 387.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.92 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 1270.49 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 5393.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 925.8 MB in the end (delta: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 11.5 GB. * Witness Printer took 71.08 ms. Allocated memory is still 1.2 GB. Free memory is still 925.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 19]: Loop Invariant [2019-11-20 09:40:05,845 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,845 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,846 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,846 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,847 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,847 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,847 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,847 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2019-11-20 09:40:05,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] Derived loop invariant: ((((~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil && ~Pluszero~LONGDOUBLE() == x) && x == \result) && ~bvor32(i0, i1) == 0bv32) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~Pluszero~LONGDOUBLE() && ~bvadd64(j0, 1023bv32) == ~bvand32(2047bv32, ~bvashr32(v_skolemized_v_prenex_1_3[63:32], 20bv32)))) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-20 09:40:05,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 09:40:05,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 5.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 84 SDtfs, 171 SDslu, 43 SDs, 0 SdLazy, 67 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 96 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 54 HoareAnnotationTreeSize, 3 FomulaSimplifications, 60 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 27 QuantifiedInterpolants, 11851 SizeOfPredicates, 25 NumberOfNonLiveVariables, 191 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...