./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.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_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ..................................................................................................................................................................................................................................................................................................................................... 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_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:35,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:35,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:35,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:35,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:35,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:35,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:35,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:35,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:35,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:35,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:35,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:35,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:35,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:35,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:35,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:35,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:35,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:35,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:35,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:35,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:35,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:35,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:35,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:35,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:35,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:35,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:35,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:35,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:35,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:35,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:35,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:35,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:35,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:35,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:35,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:35,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:35,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:35,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:35,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:35,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:35,888 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:51:35,920 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:35,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:35,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:35,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:35,922 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:35,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:35,922 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:35,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:35,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:35,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:35,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:35,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:35,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:35,923 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:35,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:35,924 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:35,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:35,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:35,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:35,924 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:35,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:35,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:35,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:35,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:35,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:35,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:35,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:51:35,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:35,926 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_754ec64e-8f4a-442c-92e6-39470b71861b/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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-11-25 08:51:36,089 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:36,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:36,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:36,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:36,108 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:36,109 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-25 08:51:36,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/23cc91da2/57c09ccf892543eab74feb48f61be2aa/FLAGa709616ff [2019-11-25 08:51:36,537 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:36,537 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-25 08:51:36,544 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/23cc91da2/57c09ccf892543eab74feb48f61be2aa/FLAGa709616ff [2019-11-25 08:51:37,002 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/23cc91da2/57c09ccf892543eab74feb48f61be2aa [2019-11-25 08:51:37,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:37,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:37,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:37,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:37,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:37,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c23547a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37, skipping insertion in model container [2019-11-25 08:51:37,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:37,037 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:37,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:37,324 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:37,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:37,376 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:37,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37 WrapperNode [2019-11-25 08:51:37,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:37,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:37,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:37,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:37,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:37,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:37,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:37,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:37,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... [2019-11-25 08:51:37,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:37,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:37,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:37,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:37,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 08:51:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-25 08:51:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-25 08:51:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:37,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:37,926 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:37,926 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-25 08:51:37,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:37 BoogieIcfgContainer [2019-11-25 08:51:37,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:37,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:37,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:37,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:37,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:37" (1/3) ... [2019-11-25 08:51:37,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164a61c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:37, skipping insertion in model container [2019-11-25 08:51:37,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:37" (2/3) ... [2019-11-25 08:51:37,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164a61c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:37, skipping insertion in model container [2019-11-25 08:51:37,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:37" (3/3) ... [2019-11-25 08:51:37,935 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-11-25 08:51:37,943 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:37,949 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:37,959 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:37,980 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:37,980 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:37,981 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:37,981 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:37,981 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:37,981 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:37,981 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:37,981 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:37,995 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-25 08:51:38,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:51:38,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:38,002 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:38,002 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:38,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:38,007 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-11-25 08:51:38,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:38,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830617328] [2019-11-25 08:51:38,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:38,131 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 08:51:38,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830617328] [2019-11-25 08:51:38,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:38,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-25 08:51:38,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466980407] [2019-11-25 08:51:38,137 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:51:38,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:38,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:51:38,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:38,152 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-25 08:51:38,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:38,172 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-11-25 08:51:38,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:51:38,175 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-25 08:51:38,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:38,187 INFO L225 Difference]: With dead ends: 66 [2019-11-25 08:51:38,187 INFO L226 Difference]: Without dead ends: 31 [2019-11-25 08:51:38,197 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 08:51:38,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-25 08:51:38,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-25 08:51:38,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:51:38,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-11-25 08:51:38,235 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-11-25 08:51:38,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:38,237 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-11-25 08:51:38,237 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:51:38,237 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-11-25 08:51:38,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:51:38,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:38,238 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:38,239 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:38,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:38,239 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-11-25 08:51:38,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:38,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953472968] [2019-11-25 08:51:38,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:38,312 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 08:51:38,313 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953472968] [2019-11-25 08:51:38,313 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:38,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:51:38,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056704355] [2019-11-25 08:51:38,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:51:38,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:38,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:51:38,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:38,316 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 3 states. [2019-11-25 08:51:38,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:38,358 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-11-25 08:51:38,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:51:38,358 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-25 08:51:38,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:38,359 INFO L225 Difference]: With dead ends: 34 [2019-11-25 08:51:38,359 INFO L226 Difference]: Without dead ends: 31 [2019-11-25 08:51:38,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:38,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-25 08:51:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-25 08:51:38,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:51:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2019-11-25 08:51:38,365 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 15 [2019-11-25 08:51:38,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:38,365 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2019-11-25 08:51:38,365 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:51:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2019-11-25 08:51:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:51:38,367 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:38,367 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:38,367 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:38,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:38,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1761490312, now seen corresponding path program 1 times [2019-11-25 08:51:38,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:38,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957439279] [2019-11-25 08:51:38,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:38,474 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:38,474 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:51:38,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:38 BoogieIcfgContainer [2019-11-25 08:51:38,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:38,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:38,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:38,504 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:38,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:37" (3/4) ... [2019-11-25 08:51:38,507 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:51:38,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:38,509 INFO L168 Benchmark]: Toolchain (without parser) took 1502.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 951.5 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:38,510 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:38,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -239.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:38,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:38,512 INFO L168 Benchmark]: Boogie Preprocessor took 44.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:38,512 INFO L168 Benchmark]: RCFGBuilder took 463.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:38,513 INFO L168 Benchmark]: TraceAbstraction took 574.67 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:38,513 INFO L168 Benchmark]: Witness Printer took 3.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:38,517 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 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 951.5 MB in the beginning and 1.2 GB in the end (delta: -239.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 463.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 574.67 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L22] COND TRUE j0 < 23 VAL [one_modf=1] [L23] COND TRUE j0 < 0 VAL [one_modf=1] [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = (i0 & 0x80000000) [L27] EXPR sf_u.value [L27] (*iptr) = sf_u.value [L29] return x; VAL [one_modf=1] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 28 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 08:51:40,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:40,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:40,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-25 08:51:40,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:40,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:40,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:40,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:40,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:40,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:40,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:40,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:40,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:40,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:40,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:40,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:51:40,317 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:40,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:40,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:40,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:40,318 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:40,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:40,319 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:40,319 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:40,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:40,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:51:40,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:40,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:51:40,320 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:40,320 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:40,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:40,321 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:40,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:40,321 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:40,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:51:40,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:40,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:40,322 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:40,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:40,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:40,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:40,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:40,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:51:40,323 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:40,324 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:40,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:51:40,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:40,324 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_754ec64e-8f4a-442c-92e6-39470b71861b/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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-11-25 08:51:40,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:40,625 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:40,628 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:40,629 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:40,629 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:40,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-25 08:51:40,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/ea5cedd2f/c643df5825464c6b889b50fdfcd60f90/FLAGffa4cb68c [2019-11-25 08:51:41,070 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:41,071 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-11-25 08:51:41,077 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/ea5cedd2f/c643df5825464c6b889b50fdfcd60f90/FLAGffa4cb68c [2019-11-25 08:51:41,409 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/data/ea5cedd2f/c643df5825464c6b889b50fdfcd60f90 [2019-11-25 08:51:41,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:41,413 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:41,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:41,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:41,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:41,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dab5ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41, skipping insertion in model container [2019-11-25 08:51:41,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:41,453 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:41,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:41,701 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:41,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:41,753 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:41,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41 WrapperNode [2019-11-25 08:51:41,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:41,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:41,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:41,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:41,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,834 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:41,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:41,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:41,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:41,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... [2019-11-25 08:51:41,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:41,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:41,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:41,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:41,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 08:51:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-25 08:51:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:51:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:41,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-25 08:51:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:51:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:42,458 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:42,459 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-11-25 08:51:42,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:42 BoogieIcfgContainer [2019-11-25 08:51:42,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:42,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:42,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:42,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:42,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:41" (1/3) ... [2019-11-25 08:51:42,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75143b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:42, skipping insertion in model container [2019-11-25 08:51:42,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:41" (2/3) ... [2019-11-25 08:51:42,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75143b0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:42, skipping insertion in model container [2019-11-25 08:51:42,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:42" (3/3) ... [2019-11-25 08:51:42,465 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-11-25 08:51:42,474 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:42,484 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:51:42,493 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:51:42,515 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:42,515 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:42,515 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:42,515 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:42,515 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:42,516 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:42,516 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:42,516 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:42,530 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-11-25 08:51:42,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:51:42,535 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:42,536 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:42,536 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:42,541 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-11-25 08:51:42,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:42,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387822573] [2019-11-25 08:51:42,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 08:51:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:42,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-25 08:51:42,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:42,709 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 08:51:42,709 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:42,713 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 08:51:42,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387822573] [2019-11-25 08:51:42,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:42,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:51:42,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597055027] [2019-11-25 08:51:42,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-25 08:51:42,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:42,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-25 08:51:42,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-25 08:51:42,731 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-11-25 08:51:42,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:42,749 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-11-25 08:51:42,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-25 08:51:42,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-25 08:51:42,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:42,759 INFO L225 Difference]: With dead ends: 66 [2019-11-25 08:51:42,759 INFO L226 Difference]: Without dead ends: 31 [2019-11-25 08:51:42,762 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 08:51:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-25 08:51:42,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-25 08:51:42,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:51:42,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-11-25 08:51:42,791 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-11-25 08:51:42,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:42,791 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-11-25 08:51:42,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-25 08:51:42,792 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-11-25 08:51:42,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:51:42,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:42,793 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:43,006 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:51:43,006 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:43,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:43,006 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-11-25 08:51:43,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:43,007 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129890334] [2019-11-25 08:51:43,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 08:51:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:43,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:51:43,127 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:43,243 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 08:51:43,243 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:43,363 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 08:51:43,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129890334] [2019-11-25 08:51:43,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:43,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-25 08:51:43,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380352141] [2019-11-25 08:51:43,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:51:43,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:43,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:51:43,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:51:43,366 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 8 states. [2019-11-25 08:51:43,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:43,688 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-11-25 08:51:43,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:51:43,689 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-25 08:51:43,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:43,690 INFO L225 Difference]: With dead ends: 38 [2019-11-25 08:51:43,690 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:51:43,692 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-25 08:51:43,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:51:43,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-25 08:51:43,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:51:43,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-25 08:51:43,700 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-11-25 08:51:43,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:43,700 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-25 08:51:43,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:51:43,701 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-25 08:51:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-25 08:51:43,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:43,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:43,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 08:51:43,923 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:43,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:43,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1951048762, now seen corresponding path program 1 times [2019-11-25 08:51:43,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:43,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326031585] [2019-11-25 08:51:43,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/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 08:51:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:44,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:51:44,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:44,108 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 08:51:44,108 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:51:44,110 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 08:51:44,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326031585] [2019-11-25 08:51:44,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:44,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-25 08:51:44,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936567769] [2019-11-25 08:51:44,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:51:44,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:51:44,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:51:44,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:44,112 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2019-11-25 08:51:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:44,130 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-11-25 08:51:44,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:51:44,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-25 08:51:44,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:44,131 INFO L225 Difference]: With dead ends: 21 [2019-11-25 08:51:44,131 INFO L226 Difference]: Without dead ends: 18 [2019-11-25 08:51:44,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:44,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-25 08:51:44,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-25 08:51:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-25 08:51:44,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-25 08:51:44,136 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-25 08:51:44,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:44,137 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-25 08:51:44,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:51:44,138 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-25 08:51:44,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-25 08:51:44,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:44,140 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:51:44,350 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-25 08:51:44,350 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:44,351 INFO L82 PathProgramCache]: Analyzing trace with hash 352844637, now seen corresponding path program 1 times [2019-11-25 08:51:44,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:51:44,352 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177715048] [2019-11-25 08:51:44,353 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-11-25 08:51:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:44,837 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-25 08:51:44,837 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:51:45,037 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-25 08:51:45,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:45 BoogieIcfgContainer [2019-11-25 08:51:45,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:45,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:45,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:45,080 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:45,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:42" (3/4) ... [2019-11-25 08:51:45,083 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:51:45,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_754ec64e-8f4a-442c-92e6-39470b71861b/bin/uautomizer/witness.graphml [2019-11-25 08:51:45,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:45,142 INFO L168 Benchmark]: Toolchain (without parser) took 3728.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 957.8 MB in the beginning and 971.4 MB in the end (delta: -13.7 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:45,143 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:45,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.68 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 941.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:45,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:45,144 INFO L168 Benchmark]: Boogie Preprocessor took 29.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:45,145 INFO L168 Benchmark]: RCFGBuilder took 566.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:45,145 INFO L168 Benchmark]: TraceAbstraction took 2616.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 98.3 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:45,146 INFO L168 Benchmark]: Witness Printer took 60.77 ms. Allocated memory is still 1.1 GB. Free memory is still 971.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:45,148 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.68 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 941.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 108.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 566.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2616.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 98.3 MB). Peak memory consumption was 98.3 MB. Max. memory is 11.5 GB. * Witness Printer took 60.77 ms. Allocated memory is still 1.1 GB. Free memory is still 971.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 86]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1.0] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1.0] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1.0] [L22] COND FALSE !(j0 < 23) [L56] __uint32_t ix; [L57] *iptr = x * one_modf VAL [one_modf=1.0] [L59] ieee_float_shape_type gf_u; [L60] gf_u.value = (x) [L61] EXPR gf_u.word [L61] (ix) = gf_u.word [L64] ieee_float_shape_type sf_u; [L65] sf_u.word = (ix & 0x80000000) [L66] EXPR sf_u.value [L66] (x) = sf_u.value [L68] return x; VAL [one_modf=1.0] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 2476 SizeOfPredicates, 8 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 11 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 incorrect! Received shutdown request...