./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.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_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 5cd93119259b478e9ace2ae93fde799beac44478 ............................................................................................................................................................................................................................................................................................ 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_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 5cd93119259b478e9ace2ae93fde799beac44478 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 08:54:27,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:27,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:27,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:27,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:27,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:27,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:27,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:27,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:27,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:27,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:27,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:27,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:27,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:27,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:27,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:27,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:27,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:27,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:27,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:27,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:27,940 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:27,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:27,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:27,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:27,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:27,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:27,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:27,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:27,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:27,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:27,949 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:27,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:27,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:27,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:27,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:27,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:27,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:27,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:27,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:27,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:27,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:54:27,966 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:27,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:27,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:27,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:27,968 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:27,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:27,969 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:27,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:27,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:27,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:27,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:27,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:27,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:27,970 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:27,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:27,971 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:27,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:27,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:27,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:27,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:27,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:27,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:27,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:27,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:27,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:27,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:27,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:54:27,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:27,973 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_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-11-25 08:54:28,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:28,122 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:28,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:28,127 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:28,127 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:28,128 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-25 08:54:28,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/8698c5e8f/98bb9cad79354317b6e4090209af5f48/FLAGf9029ac48 [2019-11-25 08:54:28,607 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:28,608 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-25 08:54:28,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/8698c5e8f/98bb9cad79354317b6e4090209af5f48/FLAGf9029ac48 [2019-11-25 08:54:28,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/8698c5e8f/98bb9cad79354317b6e4090209af5f48 [2019-11-25 08:54:28,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:28,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:28,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:28,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:28,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:28,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:28" (1/1) ... [2019-11-25 08:54:28,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60892c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:28, skipping insertion in model container [2019-11-25 08:54:28,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:28" (1/1) ... [2019-11-25 08:54:28,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:28,688 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:28,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:28,949 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:28,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:29,007 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:29,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29 WrapperNode [2019-11-25 08:54:29,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:29,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:29,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:29,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:29,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:29,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:29,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:29,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:29,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... [2019-11-25 08:54:29,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:29,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:29,095 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:29,095 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:29,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 08:54:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:54:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:54:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:54:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:54:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:29,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:54:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-25 08:54:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:54:29,668 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:29,669 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-25 08:54:29,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:29 BoogieIcfgContainer [2019-11-25 08:54:29,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:29,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:29,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:29,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:29,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:28" (1/3) ... [2019-11-25 08:54:29,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6179976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:29, skipping insertion in model container [2019-11-25 08:54:29,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:29" (2/3) ... [2019-11-25 08:54:29,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6179976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:29, skipping insertion in model container [2019-11-25 08:54:29,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:29" (3/3) ... [2019-11-25 08:54:29,677 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-11-25 08:54:29,685 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:29,690 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:54:29,697 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:54:29,720 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:29,720 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:29,720 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:29,720 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:29,721 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:29,721 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:29,721 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:29,722 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:29,737 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-25 08:54:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:54:29,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:29,743 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:29,743 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:29,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:29,748 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-25 08:54:29,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:29,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086750256] [2019-11-25 08:54:29,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:29,866 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 08:54:29,867 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086750256] [2019-11-25 08:54:29,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:29,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:54:29,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125786376] [2019-11-25 08:54:29,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:54:29,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:54:29,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:54:29,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:54:29,889 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-25 08:54:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:29,906 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-25 08:54:29,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:54:29,907 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:54:29,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:29,917 INFO L225 Difference]: With dead ends: 82 [2019-11-25 08:54:29,918 INFO L226 Difference]: Without dead ends: 39 [2019-11-25 08:54:29,921 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 08:54:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-25 08:54:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-25 08:54:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:54:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-25 08:54:29,956 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-25 08:54:29,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:29,956 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-25 08:54:29,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:54:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-25 08:54:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:54:29,957 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:29,957 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:29,957 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:29,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:29,958 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-25 08:54:29,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:29,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248633796] [2019-11-25 08:54:29,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:30,119 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:30,120 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:54:30,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:30 BoogieIcfgContainer [2019-11-25 08:54:30,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:30,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:30,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:30,165 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:30,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:29" (3/4) ... [2019-11-25 08:54:30,170 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:54:30,170 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:30,173 INFO L168 Benchmark]: Toolchain (without parser) took 1535.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:30,174 INFO L168 Benchmark]: CDTParser took 0.29 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 08:54:30,175 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -204.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:30,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:30,176 INFO L168 Benchmark]: Boogie Preprocessor took 35.61 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 08:54:30,177 INFO L168 Benchmark]: RCFGBuilder took 575.29 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:30,178 INFO L168 Benchmark]: TraceAbstraction took 493.14 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:30,178 INFO L168 Benchmark]: Witness Printer took 6.00 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 08:54:30,185 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 369.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -204.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.61 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 575.29 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: 30.1 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 493.14 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.00 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: 123]: 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 someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseXor at line 31. 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}] [L117] float x = 1.0f / 0.0f; [L118] float y = __VERIFIER_nondet_float(); [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}] [L119] float res = fmod_float(x, y); [L108] return x != x; VAL [one_fmod=1, Zero_fmod={3:0}] [L122] COND TRUE !isnan_float(res) [L123] __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: 0.4s, 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 08:54:32,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:32,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:32,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:32,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:32,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:32,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:32,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:32,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:32,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:32,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:32,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:32,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:32,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:32,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:32,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:32,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:32,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:32,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:32,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:32,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:32,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:32,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:32,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:32,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:32,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:32,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:32,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:32,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:32,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:32,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:32,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:32,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:32,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:32,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:32,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:32,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:32,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:32,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:32,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:32,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:32,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:54:32,235 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:32,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:32,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:32,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:32,236 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:32,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:32,237 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:32,237 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:32,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:32,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:32,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:32,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:32,238 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:54:32,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:54:32,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:32,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:32,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:32,239 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:32,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:32,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:32,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:32,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:32,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:32,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:32,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:32,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:32,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:32,241 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:54:32,242 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:54:32,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:32,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:54:32,242 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_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 -> 5cd93119259b478e9ace2ae93fde799beac44478 [2019-11-25 08:54:32,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:32,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:32,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:32,529 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:32,529 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:32,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-25 08:54:32,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/340c33376/13a3f638da0a43cb92dc9e879ecf9ba3/FLAGca148ca6b [2019-11-25 08:54:33,021 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:33,022 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2019-11-25 08:54:33,030 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/340c33376/13a3f638da0a43cb92dc9e879ecf9ba3/FLAGca148ca6b [2019-11-25 08:54:33,448 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/data/340c33376/13a3f638da0a43cb92dc9e879ecf9ba3 [2019-11-25 08:54:33,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:33,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:33,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:33,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:33,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:33,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e419037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33, skipping insertion in model container [2019-11-25 08:54:33,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,469 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:33,498 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:33,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:33,729 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:33,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:33,852 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:33,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33 WrapperNode [2019-11-25 08:54:33,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:33,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:33,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:33,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:33,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:33,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:33,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:33,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:33,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,919 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... [2019-11-25 08:54:33,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:33,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:33,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:33,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:33,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 08:54:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-25 08:54:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:54:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-25 08:54:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:54:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:33,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:33,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:54:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:54:33,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:54:35,373 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:35,373 INFO L284 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-25 08:54:35,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:35 BoogieIcfgContainer [2019-11-25 08:54:35,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:35,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:35,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:35,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:35,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:33" (1/3) ... [2019-11-25 08:54:35,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dafe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:35, skipping insertion in model container [2019-11-25 08:54:35,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:33" (2/3) ... [2019-11-25 08:54:35,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30dafe9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:35, skipping insertion in model container [2019-11-25 08:54:35,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:35" (3/3) ... [2019-11-25 08:54:35,381 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2019-11-25 08:54:35,388 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:35,393 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:54:35,400 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:54:35,417 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:35,417 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:35,417 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:35,417 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:35,418 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:35,418 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:35,418 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:35,418 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:35,430 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-25 08:54:35,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:54:35,437 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:35,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:35,438 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:35,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:35,443 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2019-11-25 08:54:35,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:35,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1880059239] [2019-11-25 08:54:35,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 08:54:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:35,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:54:35,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:35,797 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 08:54:35,798 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:35,801 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 08:54:35,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1880059239] [2019-11-25 08:54:35,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:35,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:54:35,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946047853] [2019-11-25 08:54:35,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:54:35,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:35,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:54:35,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:54:35,820 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2019-11-25 08:54:35,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:35,837 INFO L93 Difference]: Finished difference Result 82 states and 138 transitions. [2019-11-25 08:54:35,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:54:35,838 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-25 08:54:35,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:35,848 INFO L225 Difference]: With dead ends: 82 [2019-11-25 08:54:35,848 INFO L226 Difference]: Without dead ends: 39 [2019-11-25 08:54:35,851 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 08:54:35,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-25 08:54:35,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2019-11-25 08:54:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:54:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2019-11-25 08:54:35,884 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2019-11-25 08:54:35,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:35,884 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2019-11-25 08:54:35,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:54:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2019-11-25 08:54:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-25 08:54:35,885 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:35,886 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:36,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:54:36,089 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:36,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:36,090 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2019-11-25 08:54:36,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:36,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [235604767] [2019-11-25 08:54:36,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 08:54:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:36,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-25 08:54:36,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:37,607 WARN L192 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-11-25 08:54:37,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:54:38,964 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 08:54:38,964 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:42,530 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2019-11-25 08:54:42,776 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 08:54:42,776 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [235604767] [2019-11-25 08:54:42,776 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:42,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-25 08:54:42,777 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065057005] [2019-11-25 08:54:42,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-25 08:54:42,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:42,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-25 08:54:42,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2019-11-25 08:54:42,789 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2019-11-25 08:54:47,184 WARN L192 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 13 [2019-11-25 08:54:48,878 WARN L192 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2019-11-25 08:54:49,922 WARN L192 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2019-11-25 08:54:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:50,130 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2019-11-25 08:54:50,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:54:50,131 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2019-11-25 08:54:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:50,133 INFO L225 Difference]: With dead ends: 49 [2019-11-25 08:54:50,133 INFO L226 Difference]: Without dead ends: 44 [2019-11-25 08:54:50,134 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2019-11-25 08:54:50,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-11-25 08:54:50,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-11-25 08:54:50,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-25 08:54:50,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-11-25 08:54:50,141 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2019-11-25 08:54:50,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:50,141 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-11-25 08:54:50,144 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-25 08:54:50,145 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2019-11-25 08:54:50,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:54:50,146 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:50,147 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:50,362 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:54:50,363 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:50,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:50,363 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2019-11-25 08:54:50,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:50,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340030504] [2019-11-25 08:54:50,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/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 08:54:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:50,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-25 08:54:50,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:50,503 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 08:54:50,503 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:50,595 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 08:54:50,596 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340030504] [2019-11-25 08:54:50,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:50,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2019-11-25 08:54:50,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181342905] [2019-11-25 08:54:50,597 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:54:50,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:50,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:54:50,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:54:50,598 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 7 states. [2019-11-25 08:54:50,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:50,641 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-11-25 08:54:50,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:54:50,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-25 08:54:50,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:50,642 INFO L225 Difference]: With dead ends: 39 [2019-11-25 08:54:50,642 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:54:50,643 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:54:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:54:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:54:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:54:50,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:54:50,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-11-25 08:54:50,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:50,644 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:54:50,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:54:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:54:50,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:54:50,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:54:50,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:54:50,975 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:54:50,975 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2019-11-25 08:54:50,975 INFO L447 ceAbstractionStarter]: At program point L127(lines 110 128) the Hoare annotation is: true [2019-11-25 08:54:50,975 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:54:50,975 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:54:50,976 INFO L444 ceAbstractionStarter]: For program point L86(lines 86 103) no Hoare annotation was computed. [2019-11-25 08:54:50,976 INFO L444 ceAbstractionStarter]: For program point L20-1(lines 20 24) no Hoare annotation was computed. [2019-11-25 08:54:50,976 INFO L440 ceAbstractionStarter]: At program point L20-2(lines 20 24) the Hoare annotation is: (and (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:54:50,976 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 71) no Hoare annotation was computed. [2019-11-25 08:54:50,976 INFO L444 ceAbstractionStarter]: For program point L46(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:54:50,976 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|)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:54:50,976 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2019-11-25 08:54:50,976 INFO L444 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2019-11-25 08:54:50,977 INFO L440 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: false [2019-11-25 08:54:50,977 INFO L444 ceAbstractionStarter]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2019-11-25 08:54:50,977 INFO L440 ceAbstractionStarter]: At program point L47-3(lines 47 48) the Hoare annotation is: false [2019-11-25 08:54:50,977 INFO L444 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-11-25 08:54:50,977 INFO L440 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-11-25 08:54:50,977 INFO L444 ceAbstractionStarter]: For program point L97-3(lines 97 101) no Hoare annotation was computed. [2019-11-25 08:54:50,977 INFO L444 ceAbstractionStarter]: For program point L122(lines 122 125) no Hoare annotation was computed. [2019-11-25 08:54:50,977 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point L40-1(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point L65-1(lines 65 74) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point L65-3(lines 65 74) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point L123(line 123) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2019-11-25 08:54:50,978 INFO L440 ceAbstractionStarter]: At program point L82-2(lines 82 85) the Hoare annotation is: false [2019-11-25 08:54:50,978 INFO L444 ceAbstractionStarter]: For program point L82-3(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:54:50,979 INFO L444 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2019-11-25 08:54:50,979 INFO L440 ceAbstractionStarter]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2019-11-25 08:54:50,979 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:54:50,979 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 29) no Hoare annotation was computed. [2019-11-25 08:54:50,979 INFO L444 ceAbstractionStarter]: For program point L58-1(lines 58 63) no Hoare annotation was computed. [2019-11-25 08:54:50,979 INFO L444 ceAbstractionStarter]: For program point L25-1(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:54:50,979 INFO L444 ceAbstractionStarter]: For program point L25-2(lines 25 29) no Hoare annotation was computed. [2019-11-25 08:54:50,980 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|)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-25 08:54:50,980 INFO L444 ceAbstractionStarter]: For program point L67(lines 67 73) no Hoare annotation was computed. [2019-11-25 08:54:50,980 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-25 08:54:50,980 INFO L440 ceAbstractionStarter]: At program point L67-2(lines 65 74) the Hoare annotation is: false [2019-11-25 08:54:50,980 INFO L444 ceAbstractionStarter]: For program point L76(lines 76 78) no Hoare annotation was computed. [2019-11-25 08:54:50,980 INFO L444 ceAbstractionStarter]: For program point L76-2(lines 17 105) no Hoare annotation was computed. [2019-11-25 08:54:50,993 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:50,995 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:50,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:50,996 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:50,998 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:50,999 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,000 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,002 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,002 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,003 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,005 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,005 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,006 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,007 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,007 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:51 BoogieIcfgContainer [2019-11-25 08:54:51,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:51,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:51,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:51,014 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:51,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:35" (3/4) ... [2019-11-25 08:54:51,017 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:54:51,030 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-25 08:54:51,030 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-25 08:54:51,031 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:54:51,071 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ffb7fd2-17f9-4e4f-baec-5578ae61c416/bin/uautomizer/witness.graphml [2019-11-25 08:54:51,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:51,073 INFO L168 Benchmark]: Toolchain (without parser) took 17620.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 955.1 MB in the beginning and 995.3 MB in the end (delta: -40.3 MB). Peak memory consumption was 116.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,073 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 08:54:51,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:51,075 INFO L168 Benchmark]: Boogie Preprocessor took 36.36 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 08:54:51,075 INFO L168 Benchmark]: RCFGBuilder took 1441.82 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,076 INFO L168 Benchmark]: TraceAbstraction took 15637.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 118.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:51,076 INFO L168 Benchmark]: Witness Printer took 58.25 ms. Allocated memory is still 1.2 GB. Free memory is still 995.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:51,079 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 398.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.01 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.36 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 1441.82 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: 30.5 MB). Peak memory consumption was 30.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15637.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.3 MB in the end (delta: 118.4 MB). Peak memory consumption was 118.4 MB. Max. memory is 11.5 GB. * Witness Printer took 58.25 ms. Allocated memory is still 1.2 GB. Free memory is still 995.3 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 - 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 - 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: 123]: 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: 110]: Loop Invariant Derived loop invariant: 1 - 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 08:54:51,088 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,092 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,093 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && !~fp.eq~FLOAT(\result, \result)) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant [2019-11-25 08:54:51,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,097 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,097 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 17]: Loop Invariant [2019-11-25 08:54:51,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,098 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,099 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 08:54:51,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 08:54:51,100 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Result: SAFE, OverallTime: 15.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 109 SDtfs, 112 SDslu, 194 SDs, 0 SdLazy, 47 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 12.6s 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 54 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 6.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 4813 SizeOfPredicates, 19 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 21 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...