./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73dc70fc086318c728ead326eb8ef835fee9f9a2 ............................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 73dc70fc086318c728ead326eb8ef835fee9f9a2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:55:21,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:55:21,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:55:21,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:55:21,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:55:21,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:55:21,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:55:21,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:55:21,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:55:21,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:55:21,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:55:21,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:55:21,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:55:21,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:55:21,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:55:21,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:55:21,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:55:21,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:55:21,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:55:21,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:55:21,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:55:21,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:55:21,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:55:21,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:55:21,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:55:21,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:55:21,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:55:21,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:55:21,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:55:21,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:55:21,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:55:21,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:55:21,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:55:21,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:55:21,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:55:21,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:55:21,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:55:21,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:55:21,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:55:21,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:55:21,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:55:21,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:55:21,496 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:55:21,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:55:21,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:55:21,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:55:21,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:55:21,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:55:21,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:55:21,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:55:21,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:55:21,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:21,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:55:21,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:55:21,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:55:21,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:55:21,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:55:21,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:55:21,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-25 08:55:21,684 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:55:21,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:55:21,703 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:55:21,704 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:55:21,705 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:55:21,706 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-25 08:55:21,766 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/f5e53204d/90b7022c837443ec918be425daa23aba/FLAG2e904445d [2019-11-25 08:55:22,209 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:55:22,210 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-25 08:55:22,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/f5e53204d/90b7022c837443ec918be425daa23aba/FLAG2e904445d [2019-11-25 08:55:22,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/f5e53204d/90b7022c837443ec918be425daa23aba [2019-11-25 08:55:22,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:55:22,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:55:22,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:22,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:55:22,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:55:22,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:22" (1/1) ... [2019-11-25 08:55:22,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fba7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:22, skipping insertion in model container [2019-11-25 08:55:22,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:22" (1/1) ... [2019-11-25 08:55:22,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:55:22,657 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:55:22,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:22,992 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:55:23,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:23,060 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:55:23,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23 WrapperNode [2019-11-25 08:55:23,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:23,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:23,061 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:55:23,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:55:23,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:23,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:55:23,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:55:23,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:55:23,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... [2019-11-25 08:55:23,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:55:23,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:55:23,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:55:23,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:55:23,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:23,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:55:23,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:55:23,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:55:23,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:55:23,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:55:23,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:55:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:55:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-25 08:55:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:55:23,733 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:55:23,733 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-25 08:55:23,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:23 BoogieIcfgContainer [2019-11-25 08:55:23,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:55:23,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:55:23,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:55:23,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:55:23,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:55:22" (1/3) ... [2019-11-25 08:55:23,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb13f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:23, skipping insertion in model container [2019-11-25 08:55:23,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:23" (2/3) ... [2019-11-25 08:55:23,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb13f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:23, skipping insertion in model container [2019-11-25 08:55:23,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:23" (3/3) ... [2019-11-25 08:55:23,742 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-25 08:55:23,751 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:55:23,758 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:55:23,769 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:55:23,792 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:55:23,792 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:55:23,792 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:55:23,792 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:55:23,792 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:55:23,792 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:55:23,793 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:55:23,793 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:55:23,808 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-25 08:55:23,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:55:23,812 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:23,813 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:23,813 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:55:23,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:23,818 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-25 08:55:23,825 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:23,825 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900742082] [2019-11-25 08:55:23,825 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:23,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900742082] [2019-11-25 08:55:23,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:23,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:55:23,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704236181] [2019-11-25 08:55:23,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:55:23,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:55:23,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:55:23,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:55:23,953 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-25 08:55:23,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:23,974 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-25 08:55:23,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:55:23,976 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:55:23,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:23,987 INFO L225 Difference]: With dead ends: 82 [2019-11-25 08:55:23,987 INFO L226 Difference]: Without dead ends: 39 [2019-11-25 08:55:23,990 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:55:24,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-25 08:55:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-25 08:55:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:55:24,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-25 08:55:24,023 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-25 08:55:24,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:24,023 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-25 08:55:24,024 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:55:24,024 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-25 08:55:24,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:55:24,024 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:24,024 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:24,025 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:55:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:24,025 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-25 08:55:24,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:55:24,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646797408] [2019-11-25 08:55:24,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:55:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:55:24,150 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:55:24,151 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:55:24,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:55:24 BoogieIcfgContainer [2019-11-25 08:55:24,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:55:24,181 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:55:24,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:55:24,181 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:55:24,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:23" (3/4) ... [2019-11-25 08:55:24,185 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:55:24,185 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:55:24,187 INFO L168 Benchmark]: Toolchain (without parser) took 1578.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -107.4 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:24,188 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:24,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:24,189 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:24,189 INFO L168 Benchmark]: Boogie Preprocessor took 51.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:24,190 INFO L168 Benchmark]: RCFGBuilder took 564.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:24,191 INFO L168 Benchmark]: TraceAbstraction took 445.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:24,191 INFO L168 Benchmark]: Witness Printer took 4.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:24,194 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 451.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 564.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 445.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 108, overapproximation of someUnaryDOUBLEoperation at line 14, overapproximation of bitwiseAnd at line 30, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of bitwiseXor at line 31, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L12-L15] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L116] float x = __VERIFIER_nondet_float(); [L117] float y = -0.0f; [L18] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={3:0}] [L21] ieee_float_shape_type gf_u; [L22] gf_u.value = (x) [L23] EXPR gf_u.word [L23] (hx) = gf_u.word [L26] ieee_float_shape_type gf_u; [L27] gf_u.value = (y) [L28] EXPR gf_u.word [L28] (hy) = gf_u.word [L30] sx = hx & 0x80000000 [L31] hx ^= sx [L32] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L34] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L35] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L118] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L121] COND TRUE !isnan_float(res) [L122] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 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=42occurred 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, 22 NumberOfCodeBlocks, 22 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 0.1.24-6b5699a [2019-11-25 08:55:26,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:55:26,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:55:26,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:55:26,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:55:26,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:55:26,150 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:55:26,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:55:26,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:55:26,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:55:26,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:55:26,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:55:26,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:55:26,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:55:26,160 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:55:26,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:55:26,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:55:26,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:55:26,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:55:26,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:55:26,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:55:26,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:55:26,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:55:26,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:55:26,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:55:26,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:55:26,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:55:26,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:55:26,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:55:26,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:55:26,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:55:26,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:55:26,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:55:26,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:55:26,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:55:26,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:55:26,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:55:26,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:55:26,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:55:26,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:55:26,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:55:26,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:55:26,204 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:55:26,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:55:26,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:55:26,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:55:26,209 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:55:26,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:55:26,209 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:55:26,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:55:26,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:55:26,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:55:26,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:55:26,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:55:26,210 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:55:26,210 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:55:26,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:55:26,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:55:26,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:55:26,211 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:55:26,211 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:55:26,211 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:55:26,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:55:26,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:55:26,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:55:26,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:26,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:55:26,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:55:26,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:55:26,213 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:55:26,213 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:55:26,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:55:26,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:55:26,213 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73dc70fc086318c728ead326eb8ef835fee9f9a2 [2019-11-25 08:55:26,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:55:26,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:55:26,513 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:55:26,514 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:55:26,515 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:55:26,516 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-25 08:55:26,577 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/49e813c31/706236c018e948f186d1515558b90c91/FLAG15631d529 [2019-11-25 08:55:27,033 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:55:27,034 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/sv-benchmarks/c/float-newlib/float_req_bl_1121b.c [2019-11-25 08:55:27,041 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/49e813c31/706236c018e948f186d1515558b90c91/FLAG15631d529 [2019-11-25 08:55:27,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/data/49e813c31/706236c018e948f186d1515558b90c91 [2019-11-25 08:55:27,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:55:27,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:55:27,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:27,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:55:27,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:55:27,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757d6736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27, skipping insertion in model container [2019-11-25 08:55:27,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:55:27,435 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:55:27,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:27,663 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:55:27,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:55:27,796 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:55:27,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27 WrapperNode [2019-11-25 08:55:27,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:55:27,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:27,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:55:27,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:55:27,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:55:27,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:55:27,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:55:27,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:55:27,851 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... [2019-11-25 08:55:27,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:55:27,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:55:27,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:55:27,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:55:27,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:55:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-25 08:55:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:55:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-25 08:55:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:55:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:55:27,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:55:27,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:55:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:55:27,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:55:29,653 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:55:29,653 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-25 08:55:29,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:29 BoogieIcfgContainer [2019-11-25 08:55:29,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:55:29,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:55:29,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:55:29,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:55:29,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:55:27" (1/3) ... [2019-11-25 08:55:29,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c43368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:29, skipping insertion in model container [2019-11-25 08:55:29,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:55:27" (2/3) ... [2019-11-25 08:55:29,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c43368b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:55:29, skipping insertion in model container [2019-11-25 08:55:29,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:29" (3/3) ... [2019-11-25 08:55:29,661 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121b.c [2019-11-25 08:55:29,669 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:55:29,675 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:55:29,683 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:55:29,704 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:55:29,705 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:55:29,705 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:55:29,705 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:55:29,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:55:29,706 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:55:29,706 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:55:29,706 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:55:29,720 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-25 08:55:29,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:55:29,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:29,727 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:29,728 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:55:29,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:29,733 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-25 08:55:29,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:55:29,744 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [83474354] [2019-11-25 08:55:29,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-25 08:55:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:30,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:55:30,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:55:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:30,045 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:55:30,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:30,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [83474354] [2019-11-25 08:55:30,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:30,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:55:30,051 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418078912] [2019-11-25 08:55:30,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:55:30,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:55:30,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:55:30,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:55:30,072 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-25 08:55:30,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:30,090 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-25 08:55:30,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:55:30,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:55:30,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:30,102 INFO L225 Difference]: With dead ends: 82 [2019-11-25 08:55:30,103 INFO L226 Difference]: Without dead ends: 39 [2019-11-25 08:55:30,106 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:55:30,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-25 08:55:30,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-25 08:55:30,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:55:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-25 08:55:30,142 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-25 08:55:30,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:30,142 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-25 08:55:30,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:55:30,143 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-25 08:55:30,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:55:30,144 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:30,144 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:30,359 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:55:30,359 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:55:30,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:30,360 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-25 08:55:30,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:55:30,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522273366] [2019-11-25 08:55:30,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-25 08:55:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:30,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:55:30,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:55:32,366 WARN L192 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-25 08:55:32,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:55:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:33,952 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:55:38,083 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~x (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_float_~x c_ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-25 08:55:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:38,355 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522273366] [2019-11-25 08:55:38,355 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:38,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-25 08:55:38,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384955971] [2019-11-25 08:55:38,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-25 08:55:38,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:55:38,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-25 08:55:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-11-25 08:55:38,359 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-11-25 08:55:44,160 WARN L192 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2019-11-25 08:55:45,768 WARN L192 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2019-11-25 08:55:46,901 WARN L192 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-11-25 08:55:47,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:47,077 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2019-11-25 08:55:47,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:55:47,078 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-11-25 08:55:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:47,079 INFO L225 Difference]: With dead ends: 44 [2019-11-25 08:55:47,079 INFO L226 Difference]: Without dead ends: 39 [2019-11-25 08:55:47,080 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2019-11-25 08:55:47,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-25 08:55:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-25 08:55:47,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:55:47,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-25 08:55:47,086 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-25 08:55:47,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:47,086 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-25 08:55:47,086 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-25 08:55:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-25 08:55:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:55:47,087 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:55:47,087 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:55:47,288 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:55:47,288 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:55:47,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:55:47,289 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-25 08:55:47,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:55:47,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156411030] [2019-11-25 08:55:47,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-25 08:55:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:55:47,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:55:47,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:55:47,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:47,430 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:55:47,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:55:47,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156411030] [2019-11-25 08:55:47,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:55:47,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:55:47,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043513399] [2019-11-25 08:55:47,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:55:47,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:55:47,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:55:47,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:55:47,513 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2019-11-25 08:55:47,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:55:47,581 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-25 08:55:47,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:55:47,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-25 08:55:47,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:55:47,582 INFO L225 Difference]: With dead ends: 39 [2019-11-25 08:55:47,582 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:55:47,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-11-25 08:55:47,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:55:47,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:55:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:55:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:55:47,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-25 08:55:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:55:47,584 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:55:47,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:55:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:55:47,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:55:47,785 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:55:47,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:55:47,894 INFO L447 ceAbstractionStarter]: At program point L126(lines 110 127) the Hoare annotation is: true [2019-11-25 08:55:47,895 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:55:47,895 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-25 08:55:47,895 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:55:47,895 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:55:47,895 INFO L444 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-25 08:55:47,895 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-25 08:55:47,896 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-25 08:55:47,896 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-25 08:55:47,896 INFO L444 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:55:47,896 INFO L440 ceAbstractionStarter]: At program point L104(lines 17 105) the Hoare annotation is: (and (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-25 08:55:47,896 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-25 08:55:47,896 INFO L444 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-11-25 08:55:47,896 INFO L444 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-25 08:55:47,897 INFO L440 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-25 08:55:47,897 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-25 08:55:47,897 INFO L440 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-25 08:55:47,897 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-25 08:55:47,897 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-25 08:55:47,897 INFO L444 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-25 08:55:47,897 INFO L444 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-11-25 08:55:47,898 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-25 08:55:47,899 INFO L444 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:55:47,899 INFO L444 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-25 08:55:47,899 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:55:47,899 INFO L444 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-25 08:55:47,900 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-11-25 08:55:47,900 INFO L440 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-25 08:55:47,901 INFO L444 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:55:47,901 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-25 08:55:47,901 INFO L440 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-25 08:55:47,902 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:55:47,903 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-25 08:55:47,903 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-25 08:55:47,903 INFO L444 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:55:47,903 INFO L444 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-25 08:55:47,903 INFO L440 ceAbstractionStarter]: At program point L108(line 108) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_fmod_float_~y (fp.neg (_ +zero 8 24)))) [2019-11-25 08:55:47,903 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-25 08:55:47,904 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-25 08:55:47,904 INFO L440 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-25 08:55:47,904 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-25 08:55:47,904 INFO L444 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:55:47,917 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:47,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:47,920 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:47,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:47,922 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:47,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:47,923 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:47,923 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:47,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:47,924 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:47,924 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:47,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:47,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:55:47 BoogieIcfgContainer [2019-11-25 08:55:47,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:55:47,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:55:47,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:55:47,929 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:55:47,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:55:29" (3/4) ... [2019-11-25 08:55:47,933 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:55:47,947 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-25 08:55:47,947 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-25 08:55:47,947 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:55:48,004 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_93099637-8c9c-45aa-869a-010577e98ca4/bin/uautomizer/witness.graphml [2019-11-25 08:55:48,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:55:48,006 INFO L168 Benchmark]: Toolchain (without parser) took 20609.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 994.2 MB in the end (delta: -37.8 MB). Peak memory consumption was 110.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:48,006 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:48,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:48,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:48,008 INFO L168 Benchmark]: Boogie Preprocessor took 39.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:48,008 INFO L168 Benchmark]: RCFGBuilder took 1770.99 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:48,009 INFO L168 Benchmark]: TraceAbstraction took 18272.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.2 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:55:48,010 INFO L168 Benchmark]: Witness Printer took 75.96 ms. Allocated memory is still 1.2 GB. Free memory is still 994.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:55:48,019 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 400.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.93 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 39.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1770.99 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18272.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 994.2 MB in the end (delta: 112.1 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. * Witness Printer took 75.96 ms. Allocated memory is still 1.2 GB. Free memory is still 994.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 108]: Loop Invariant [2019-11-25 08:55:48,027 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:48,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:48,028 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:48,028 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-11-25 08:55:48,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:48,029 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:48,029 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:48,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 17]: Loop Invariant [2019-11-25 08:55:48,030 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:48,030 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:55:48,031 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:55:48,031 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && y == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 18.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 111 SDtfs, 111 SDslu, 197 SDs, 0 SdLazy, 38 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 42 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 11 QuantifiedInterpolants, 4137 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...