./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8015c985f157600a44233f2d61865f454dda9bb9 ....................................................................................................................................................................................................................................................................................................... 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/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8015c985f157600a44233f2d61865f454dda9bb9 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:23:44,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:44,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:45,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:23:45,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:23:45,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:23:45,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:23:45,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:23:45,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:23:45,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:23:45,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:23:45,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:23:45,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:45,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:45,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:45,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:45,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:45,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:45,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:45,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:45,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:45,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:45,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:45,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:45,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:23:45,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:23:45,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:23:45,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:23:45,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:23:45,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:23:45,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:45,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:45,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:45,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:45,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:45,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:45,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:45,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:45,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:45,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:45,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:45,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:23:45,056 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:45,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:45,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:45,057 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:45,058 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:45,058 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:45,058 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:23:45,058 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:45,058 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:45,058 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:23:45,058 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:23:45,059 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:45,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:45,059 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:45,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:23:45,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:45,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:45,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:45,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:45,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:45,061 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:45,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:45,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:45,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:45,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:45,062 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:45,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:45,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:45,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:45,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:45,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:45,063 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:23:45,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:23:45,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:45,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:45,063 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8015c985f157600a44233f2d61865f454dda9bb9 [2019-10-22 11:23:45,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:45,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:45,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:45,099 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:45,099 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:45,100 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-10-22 11:23:45,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/211b6abfe/dad71647be64466a8f1d709eba45af66/FLAG42c472d49 [2019-10-22 11:23:45,597 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:45,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-10-22 11:23:45,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/211b6abfe/dad71647be64466a8f1d709eba45af66/FLAG42c472d49 [2019-10-22 11:23:45,957 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/211b6abfe/dad71647be64466a8f1d709eba45af66 [2019-10-22 11:23:45,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:45,961 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:45,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:45,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:45,969 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:45,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:45" (1/1) ... [2019-10-22 11:23:45,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7584e609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:45, skipping insertion in model container [2019-10-22 11:23:45,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:45" (1/1) ... [2019-10-22 11:23:45,980 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:46,009 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:46,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:46,297 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:46,344 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:46,363 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:46,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46 WrapperNode [2019-10-22 11:23:46,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:46,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:46,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:46,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:46,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:46,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:46,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:46,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:46,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... [2019-10-22 11:23:46,487 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:46,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:46,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:46,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:46,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:46,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 11:23:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 11:23:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 11:23:46,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 11:23:46,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:23:47,046 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:23:47,046 INFO L284 CfgBuilder]: Removed 32 assume(true) statements. [2019-10-22 11:23:47,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:47 BoogieIcfgContainer [2019-10-22 11:23:47,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:23:47,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:23:47,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:23:47,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:23:47,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:45" (1/3) ... [2019-10-22 11:23:47,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d468a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:47, skipping insertion in model container [2019-10-22 11:23:47,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:46" (2/3) ... [2019-10-22 11:23:47,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d468a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:23:47, skipping insertion in model container [2019-10-22 11:23:47,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:47" (3/3) ... [2019-10-22 11:23:47,063 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2019-10-22 11:23:47,071 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:23:47,076 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:23:47,085 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:23:47,107 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:23:47,107 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:23:47,107 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:23:47,107 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:23:47,107 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:23:47,107 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:23:47,108 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:23:47,108 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:23:47,122 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-10-22 11:23:47,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:23:47,127 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:47,128 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:47,130 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:47,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:47,135 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2019-10-22 11:23:47,143 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:47,144 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60865343] [2019-10-22 11:23:47,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,144 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,144 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:23:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:23:47,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60865343] [2019-10-22 11:23:47,237 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:23:47,237 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 11:23:47,237 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045912231] [2019-10-22 11:23:47,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:23:47,241 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:23:47,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:23:47,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:23:47,253 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2019-10-22 11:23:47,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:23:47,273 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2019-10-22 11:23:47,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:23:47,275 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:23:47,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:23:47,285 INFO L225 Difference]: With dead ends: 150 [2019-10-22 11:23:47,286 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 11:23:47,288 INFO L600 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 [2019-10-22 11:23:47,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 11:23:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-10-22 11:23:47,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 11:23:47,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2019-10-22 11:23:47,324 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2019-10-22 11:23:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:23:47,325 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2019-10-22 11:23:47,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:23:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2019-10-22 11:23:47,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:23:47,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:23:47,326 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:23:47,326 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:23:47,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:23:47,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2019-10-22 11:23:47,327 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:23:47,327 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810519571] [2019-10-22 11:23:47,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,327 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:23:47,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:23:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:47,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:23:47,408 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:23:47,408 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:23:47,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:23:47 BoogieIcfgContainer [2019-10-22 11:23:47,440 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:23:47,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:23:47,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:23:47,441 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:23:47,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:23:47" (3/4) ... [2019-10-22 11:23:47,445 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:23:47,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:23:47,447 INFO L168 Benchmark]: Toolchain (without parser) took 1486.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.8 MB in the beginning and 1.0 GB in the end (delta: -99.2 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,447 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.62 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,449 INFO L168 Benchmark]: Boogie Preprocessor took 54.43 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,450 INFO L168 Benchmark]: RCFGBuilder took 560.10 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,451 INFO L168 Benchmark]: TraceAbstraction took 392.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:23:47,451 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:23:47,454 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 401.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.62 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.43 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 560.10 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: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 392.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 182]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 181, overapproximation of someUnaryDOUBLEoperation at line 84, overapproximation of bitwiseAnd at line 98. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L81-L88] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L177] float x = 1.0f; [L91] float z, p, q, r, w, s, c, df; [L92] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (x) [L96] EXPR gf_u.word [L96] (hx) = gf_u.word [L98] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L99] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L100] COND TRUE hx > 0 [L101] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L178] float res = __ieee754_acosf(x); [L181] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L181] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L182] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 104 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=76occurred 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-cad4683 [2019-10-22 11:23:49,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:23:49,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:23:49,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-22 11:23:49,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:23:49,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:23:49,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:23:49,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:23:49,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:23:49,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:23:49,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:23:49,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:23:49,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:23:49,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:23:49,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:23:49,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:23:49,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-22 11:23:49,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:23:49,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:23:49,471 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:23:49,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:23:49,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:23:49,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:23:49,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:23:49,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:23:49,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:23:49,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:23:49,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:23:49,475 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:23:49,498 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:23:49,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:23:49,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:23:49,499 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:23:49,499 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:23:49,499 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:23:49,499 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:23:49,499 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:23:49,499 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:23:49,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:23:49,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:23:49,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:23:49,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:23:49,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:23:49,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:23:49,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:23:49,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:23:49,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:23:49,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:23:49,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:23:49,502 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:23:49,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:23:49,502 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:23:49,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:23:49,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:23:49,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:23:49,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:49,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:23:49,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:23:49,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:23:49,503 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:23:49,504 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:23:49,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:23:49,504 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:23:49,505 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/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8015c985f157600a44233f2d61865f454dda9bb9 [2019-10-22 11:23:49,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:23:49,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:23:49,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:23:49,555 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:23:49,555 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:23:49,556 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-10-22 11:23:49,602 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/95c1da951/9e79519aa094401eab34aab9bb426967/FLAG27d328eff [2019-10-22 11:23:50,003 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:23:50,004 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2019-10-22 11:23:50,011 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/95c1da951/9e79519aa094401eab34aab9bb426967/FLAG27d328eff [2019-10-22 11:23:50,398 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/data/95c1da951/9e79519aa094401eab34aab9bb426967 [2019-10-22 11:23:50,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:23:50,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:23:50,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:50,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:23:50,408 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:23:50,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292b3c6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50, skipping insertion in model container [2019-10-22 11:23:50,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,418 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:23:50,443 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:23:50,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:50,686 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:23:50,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:23:50,857 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:23:50,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50 WrapperNode [2019-10-22 11:23:50,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:23:50,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:50,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:23:50,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:23:50,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:23:50,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:23:50,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:23:50,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:23:50,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... [2019-10-22 11:23:50,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:23:50,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:23:50,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:23:50,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:23:50,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:23:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:23:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 11:23:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 11:23:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:23:51,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:23:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 11:23:51,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 11:23:51,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 11:24:01,470 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:24:01,471 INFO L284 CfgBuilder]: Removed 32 assume(true) statements. [2019-10-22 11:24:01,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01 BoogieIcfgContainer [2019-10-22 11:24:01,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:24:01,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:24:01,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:24:01,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:24:01,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:23:50" (1/3) ... [2019-10-22 11:24:01,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf3f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:01, skipping insertion in model container [2019-10-22 11:24:01,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:23:50" (2/3) ... [2019-10-22 11:24:01,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cf3f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:24:01, skipping insertion in model container [2019-10-22 11:24:01,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01" (3/3) ... [2019-10-22 11:24:01,478 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2019-10-22 11:24:01,487 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:24:01,494 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:24:01,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:24:01,524 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:24:01,524 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:24:01,524 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:24:01,524 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:24:01,524 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:24:01,525 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:24:01,525 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:24:01,525 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:24:01,536 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2019-10-22 11:24:01,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:24:01,540 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,541 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:01,542 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:01,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2019-10-22 11:24:01,553 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:01,553 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [384784476] [2019-10-22 11:24:01,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-10-22 11:24:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:01,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 11:24:01,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:01,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,657 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:01,669 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [384784476] [2019-10-22 11:24:01,669 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:01,670 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 11:24:01,670 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012391510] [2019-10-22 11:24:01,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 11:24:01,675 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:01,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 11:24:01,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 11:24:01,687 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2019-10-22 11:24:01,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:01,710 INFO L93 Difference]: Finished difference Result 150 states and 248 transitions. [2019-10-22 11:24:01,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 11:24:01,711 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-22 11:24:01,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:01,722 INFO L225 Difference]: With dead ends: 150 [2019-10-22 11:24:01,722 INFO L226 Difference]: Without dead ends: 73 [2019-10-22 11:24:01,725 INFO L600 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 [2019-10-22 11:24:01,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-10-22 11:24:01,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-10-22 11:24:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-10-22 11:24:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2019-10-22 11:24:01,762 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2019-10-22 11:24:01,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:01,762 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2019-10-22 11:24:01,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 11:24:01,762 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2019-10-22 11:24:01,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:24:01,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:01,763 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:01,968 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:24:01,969 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:01,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:01,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2019-10-22 11:24:01,969 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:01,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848745838] [2019-10-22 11:24:01,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-10-22 11:24:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:02,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:24:02,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:02,078 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:02,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:02,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848745838] [2019-10-22 11:24:02,101 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:02,101 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2019-10-22 11:24:02,101 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027508281] [2019-10-22 11:24:02,103 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 11:24:02,103 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:02,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 11:24:02,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:24:02,104 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2019-10-22 11:24:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:09,831 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2019-10-22 11:24:10,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:10,023 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-10-22 11:24:10,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:10,025 INFO L225 Difference]: With dead ends: 85 [2019-10-22 11:24:10,025 INFO L226 Difference]: Without dead ends: 82 [2019-10-22 11:24:10,026 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-10-22 11:24:10,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2019-10-22 11:24:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-10-22 11:24:10,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2019-10-22 11:24:10,040 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2019-10-22 11:24:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:10,040 INFO L462 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2019-10-22 11:24:10,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 11:24:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2019-10-22 11:24:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:24:10,041 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:10,041 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:10,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 11:24:10,242 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:10,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:10,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2019-10-22 11:24:10,243 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:10,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318698469] [2019-10-22 11:24:10,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 11:24:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:10,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 11:24:10,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:10,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:10,408 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:10,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318698469] [2019-10-22 11:24:10,458 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:10,458 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-10-22 11:24:10,458 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909663272] [2019-10-22 11:24:10,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:24:10,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:10,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:24:10,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:24:10,459 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand 6 states. [2019-10-22 11:24:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:13,497 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2019-10-22 11:24:13,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 11:24:13,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-22 11:24:13,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:13,593 INFO L225 Difference]: With dead ends: 93 [2019-10-22 11:24:13,593 INFO L226 Difference]: Without dead ends: 60 [2019-10-22 11:24:13,594 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-22 11:24:13,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-10-22 11:24:13,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2019-10-22 11:24:13,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-10-22 11:24:13,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2019-10-22 11:24:13,609 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2019-10-22 11:24:13,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:13,609 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2019-10-22 11:24:13,609 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:24:13,610 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2019-10-22 11:24:13,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 11:24:13,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:13,610 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:13,811 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 11:24:13,811 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:13,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:13,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2019-10-22 11:24:13,812 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:13,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404282136] [2019-10-22 11:24:13,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-10-22 11:24:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:14,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:24:14,025 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,074 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,137 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404282136] [2019-10-22 11:24:14,138 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:14,138 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 11:24:14,138 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169053465] [2019-10-22 11:24:14,138 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 11:24:14,139 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:14,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 11:24:14,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-22 11:24:14,139 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 8 states. [2019-10-22 11:24:14,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:14,210 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2019-10-22 11:24:14,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:24:14,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-10-22 11:24:14,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:14,212 INFO L225 Difference]: With dead ends: 58 [2019-10-22 11:24:14,212 INFO L226 Difference]: Without dead ends: 16 [2019-10-22 11:24:14,213 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-10-22 11:24:14,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-10-22 11:24:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-10-22 11:24:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-10-22 11:24:14,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2019-10-22 11:24:14,216 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2019-10-22 11:24:14,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:14,216 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2019-10-22 11:24:14,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 11:24:14,217 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2019-10-22 11:24:14,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 11:24:14,217 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:24:14,217 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 11:24:14,428 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 11:24:14,428 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:24:14,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:24:14,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2019-10-22 11:24:14,429 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:24:14,430 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [676155673] [2019-10-22 11:24:14,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-10-22 11:24:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:24:14,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-22 11:24:14,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:24:14,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:14,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,586 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:24:14,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:24:14,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:24:14,706 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [676155673] [2019-10-22 11:24:14,706 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:24:14,706 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2019-10-22 11:24:14,707 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964701293] [2019-10-22 11:24:14,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 11:24:14,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:24:14,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 11:24:14,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-22 11:24:14,708 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2019-10-22 11:24:14,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:24:14,832 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2019-10-22 11:24:14,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-22 11:24:14,833 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2019-10-22 11:24:14,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:24:14,833 INFO L225 Difference]: With dead ends: 16 [2019-10-22 11:24:14,833 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:24:14,834 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-10-22 11:24:14,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:24:14,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:24:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:24:14,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:24:14,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2019-10-22 11:24:14,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:24:14,835 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:24:14,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 11:24:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:24:14,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:24:15,036 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-10-22 11:24:15,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:24:15,193 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L35-3(lines 35 39) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L35-5(lines 35 39) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L439 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L52-3(lines 52 56) no Hoare annotation was computed. [2019-10-22 11:24:15,194 INFO L443 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2019-10-22 11:24:15,195 INFO L443 ceAbstractionStarter]: For program point L52-5(lines 52 56) no Hoare annotation was computed. [2019-10-22 11:24:15,195 INFO L443 ceAbstractionStarter]: For program point L19-5(lines 19 23) no Hoare annotation was computed. [2019-10-22 11:24:15,195 INFO L439 ceAbstractionStarter]: At program point L19-6(lines 19 23) the Hoare annotation is: false [2019-10-22 11:24:15,195 INFO L443 ceAbstractionStarter]: For program point L19-7(lines 19 23) no Hoare annotation was computed. [2019-10-22 11:24:15,195 INFO L439 ceAbstractionStarter]: At program point L168(lines 159 169) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and |ULTIMATE.start_main_#t~short17| (= (_ bv1065353216 32) ULTIMATE.start___ieee754_acosf_~ix~1) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) .cse0) (= .cse1 ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= .cse1 ULTIMATE.start_main_~res~0) (= .cse1 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= |ULTIMATE.start___ieee754_acosf_#res| .cse1) (= .cse0 ULTIMATE.start___ieee754_acosf_~x))) [2019-10-22 11:24:15,195 INFO L443 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2019-10-22 11:24:15,195 INFO L439 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2019-10-22 11:24:15,195 INFO L443 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2019-10-22 11:24:15,196 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:24:15,196 INFO L443 ceAbstractionStarter]: For program point L36-7(lines 36 37) no Hoare annotation was computed. [2019-10-22 11:24:15,196 INFO L439 ceAbstractionStarter]: At program point L36-8(lines 36 37) the Hoare annotation is: false [2019-10-22 11:24:15,196 INFO L443 ceAbstractionStarter]: For program point L36-9(lines 36 37) no Hoare annotation was computed. [2019-10-22 11:24:15,196 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 156) no Hoare annotation was computed. [2019-10-22 11:24:15,197 INFO L443 ceAbstractionStarter]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2019-10-22 11:24:15,197 INFO L439 ceAbstractionStarter]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2019-10-22 11:24:15,197 INFO L446 ceAbstractionStarter]: At program point L186(lines 171 187) the Hoare annotation is: true [2019-10-22 11:24:15,197 INFO L443 ceAbstractionStarter]: For program point L104(lines 104 106) no Hoare annotation was computed. [2019-10-22 11:24:15,197 INFO L439 ceAbstractionStarter]: At program point L155(lines 90 157) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (= (_ bv1065353216 32) ULTIMATE.start___ieee754_acosf_~ix~1) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) .cse0) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) (= .cse0 ULTIMATE.start___ieee754_acosf_~x))) [2019-10-22 11:24:15,197 INFO L443 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2019-10-22 11:24:15,197 INFO L439 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point L73-5(lines 73 77) no Hoare annotation was computed. [2019-10-22 11:24:15,198 INFO L439 ceAbstractionStarter]: At program point L73-6(lines 73 77) the Hoare annotation is: false [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point L73-7(lines 73 77) no Hoare annotation was computed. [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point L107(lines 107 156) no Hoare annotation was computed. [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point L141(lines 141 145) no Hoare annotation was computed. [2019-10-22 11:24:15,198 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 109) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L141-1(lines 131 156) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L141-2(lines 141 145) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L42-3(lines 42 43) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L42-5(lines 42 43) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L26-1(lines 26 27) no Hoare annotation was computed. [2019-10-22 11:24:15,199 INFO L443 ceAbstractionStarter]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2019-10-22 11:24:15,200 INFO L439 ceAbstractionStarter]: At program point L93-2(lines 93 97) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) ULTIMATE.start___ieee754_acosf_~x) [2019-10-22 11:24:15,200 INFO L443 ceAbstractionStarter]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2019-10-22 11:24:15,200 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2019-10-22 11:24:15,201 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:24:15,201 INFO L443 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2019-10-22 11:24:15,201 INFO L439 ceAbstractionStarter]: At program point L78(lines 14 79) the Hoare annotation is: false [2019-10-22 11:24:15,201 INFO L439 ceAbstractionStarter]: At program point L78-1(lines 14 79) the Hoare annotation is: false [2019-10-22 11:24:15,201 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-10-22 11:24:15,201 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 29 30) no Hoare annotation was computed. [2019-10-22 11:24:15,201 INFO L443 ceAbstractionStarter]: For program point L162-1(lines 162 166) no Hoare annotation was computed. [2019-10-22 11:24:15,201 INFO L439 ceAbstractionStarter]: At program point L162-2(lines 162 166) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and |ULTIMATE.start_main_#t~short17| (= (_ bv1065353216 32) ULTIMATE.start___ieee754_acosf_~ix~1) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) .cse0) (= .cse1 ULTIMATE.start___signbit_float_~x) (= .cse1 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start___ieee754_acosf_#res| .cse1) (= .cse0 ULTIMATE.start___ieee754_acosf_~x))) [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L162-3(lines 162 166) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L63-2(lines 63 69) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L65-3(lines 65 68) no Hoare annotation was computed. [2019-10-22 11:24:15,202 INFO L443 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point L181-2(lines 181 184) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 182) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point L99(lines 99 106) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point L182(line 182) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L439 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L439 ceAbstractionStarter]: At program point L50-6(lines 50 59) the Hoare annotation is: false [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point L50-7(lines 14 79) no Hoare annotation was computed. [2019-10-22 11:24:15,203 INFO L443 ceAbstractionStarter]: For program point L100(lines 100 103) no Hoare annotation was computed. [2019-10-22 11:24:15,204 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-10-22 11:24:15,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,213 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,217 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,218 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,219 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,221 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,222 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,225 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:24:15 BoogieIcfgContainer [2019-10-22 11:24:15,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:24:15,228 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:24:15,228 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:24:15,228 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:24:15,229 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:24:01" (3/4) ... [2019-10-22 11:24:15,232 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:24:15,244 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2019-10-22 11:24:15,244 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 11:24:15,268 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1065353216bv32 == ix && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x [2019-10-22 11:24:15,268 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x [2019-10-22 11:24:15,269 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x [2019-10-22 11:24:15,315 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a857bab1-e848-4155-bc2f-8d5be3a0b572/bin/utaipan/witness.graphml [2019-10-22 11:24:15,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:24:15,321 INFO L168 Benchmark]: Toolchain (without parser) took 24916.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 952.3 MB in the beginning and 866.4 MB in the end (delta: 86.0 MB). Peak memory consumption was 207.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,321 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:24:15,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 453.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.01 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. [2019-10-22 11:24:15,322 INFO L168 Benchmark]: Boogie Preprocessor took 50.52 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,322 INFO L168 Benchmark]: RCFGBuilder took 10515.48 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,323 INFO L168 Benchmark]: TraceAbstraction took 13754.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.0 MB in the end (delta: 179.3 MB). Peak memory consumption was 179.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,323 INFO L168 Benchmark]: Witness Printer took 91.76 ms. Allocated memory is still 1.2 GB. Free memory was 880.0 MB in the beginning and 866.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:24:15,325 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 453.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 29.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.01 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 50.52 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10515.48 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: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13754.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.0 MB in the end (delta: 179.3 MB). Peak memory consumption was 179.3 MB. Max. memory is 11.5 GB. * Witness Printer took 91.76 ms. Allocated memory is still 1.2 GB. Free memory was 880.0 MB in the beginning and 866.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 182]: 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: 171]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant [2019-10-22 11:24:15,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((1065353216bv32 == ix && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 93]: Loop Invariant [2019-10-22 11:24:15,333 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,333 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 159]: Loop Invariant [2019-10-22 11:24:15,333 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,333 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,336 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 162]: Loop Invariant [2019-10-22 11:24:15,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,337 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,338 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:24:15,339 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && 1065353216bv32 == ix) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == x) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == res) && \result == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == x - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Result: SAFE, OverallTime: 13.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 282 SDtfs, 208 SDslu, 281 SDs, 0 SdLazy, 43 SolverSat, 10 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 128 HoareAnnotationTreeSize, 16 FomulaSimplifications, 70 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 6 QuantifiedInterpolants, 3872 SizeOfPredicates, 21 NumberOfNonLiveVariables, 226 ConjunctsInSsa, 31 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...