./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ae8278c4ec20358798928b86253d2d04fbb03a1 .............................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ae8278c4ec20358798928b86253d2d04fbb03a1 .................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-69874e2 [2020-12-01 15:13:04,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:13:04,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:13:04,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:13:04,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:13:04,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:13:04,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:13:04,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:13:04,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:13:04,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:13:04,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:13:04,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:13:04,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:13:04,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:13:04,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:13:04,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:13:04,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:13:04,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:13:04,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:13:04,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:13:04,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:13:04,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:13:04,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:13:04,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:13:04,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:13:04,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:13:04,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:13:04,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:13:04,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:13:04,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:13:04,437 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:13:04,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:13:04,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:13:04,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:13:04,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:13:04,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:13:04,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:13:04,446 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:13:04,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:13:04,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:13:04,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:13:04,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:13:04,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:13:04,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:13:04,485 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:13:04,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:13:04,486 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:13:04,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:13:04,487 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:13:04,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:13:04,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:13:04,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:13:04,489 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:13:04,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:13:04,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:13:04,490 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:13:04,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:13:04,491 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:13:04,491 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:13:04,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:13:04,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:13:04,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:13:04,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:13:04,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:13:04,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:13:04,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:13:04,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:13:04,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:13:04,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:13:04,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:13:04,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:13:04,498 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2020-12-01 15:13:04,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:13:04,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:13:04,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:13:04,872 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:13:04,874 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:13:04,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-01 15:13:04,979 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/a3a4a9ea0/6340c9e486e14b3ca79c7e2ce6cc8089/FLAGf463d2dd0 [2020-12-01 15:13:05,478 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:13:05,479 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-01 15:13:05,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/a3a4a9ea0/6340c9e486e14b3ca79c7e2ce6cc8089/FLAGf463d2dd0 [2020-12-01 15:13:05,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/a3a4a9ea0/6340c9e486e14b3ca79c7e2ce6cc8089 [2020-12-01 15:13:05,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:13:05,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:13:05,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:13:05,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:13:05,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:13:05,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:13:05" (1/1) ... [2020-12-01 15:13:05,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba1c6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:05, skipping insertion in model container [2020-12-01 15:13:05,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:13:05" (1/1) ... [2020-12-01 15:13:05,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:13:05,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:13:06,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:13:06,162 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:13:06,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:13:06,237 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:13:06,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06 WrapperNode [2020-12-01 15:13:06,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:13:06,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:13:06,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:13:06,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:13:06,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:13:06,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:13:06,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:13:06,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:13:06,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,320 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... [2020-12-01 15:13:06,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:13:06,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:13:06,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:13:06,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:13:06,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/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 [2020-12-01 15:13:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:13:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:13:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:13:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:13:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:13:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:13:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:13:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:13:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 15:13:06,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:13:07,207 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:13:07,208 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 15:13:07,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:07 BoogieIcfgContainer [2020-12-01 15:13:07,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:13:07,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:13:07,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:13:07,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:13:07,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:13:05" (1/3) ... [2020-12-01 15:13:07,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633a43c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:13:07, skipping insertion in model container [2020-12-01 15:13:07,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:06" (2/3) ... [2020-12-01 15:13:07,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633a43c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:13:07, skipping insertion in model container [2020-12-01 15:13:07,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:07" (3/3) ... [2020-12-01 15:13:07,229 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-12-01 15:13:07,246 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:13:07,250 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:13:07,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:13:07,315 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:13:07,318 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:13:07,319 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:13:07,319 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:13:07,319 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:13:07,319 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:13:07,320 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:13:07,320 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:13:07,342 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-12-01 15:13:07,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:13:07,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:13:07,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:13:07,352 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:13:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:13:07,361 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-01 15:13:07,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:13:07,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535315408] [2020-12-01 15:13:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:13:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:13:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:13:07,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535315408] [2020-12-01 15:13:07,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:13:07,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:13:07,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452079534] [2020-12-01 15:13:07,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:13:07,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:13:07,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:13:07,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:13:07,606 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-12-01 15:13:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:13:07,645 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-12-01 15:13:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:13:07,647 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:13:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:13:07,669 INFO L225 Difference]: With dead ends: 109 [2020-12-01 15:13:07,674 INFO L226 Difference]: Without dead ends: 52 [2020-12-01 15:13:07,680 INFO L677 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 [2020-12-01 15:13:07,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-01 15:13:07,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-01 15:13:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 15:13:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-01 15:13:07,741 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-01 15:13:07,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:13:07,741 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-01 15:13:07,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:13:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-01 15:13:07,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:13:07,743 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:13:07,744 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:13:07,744 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:13:07,745 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:13:07,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:13:07,748 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-01 15:13:07,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:13:07,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411813154] [2020-12-01 15:13:07,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:13:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:13:07,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:13:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:13:07,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:13:08,009 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:13:08,009 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:13:08,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:13:08,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:13:08 BoogieIcfgContainer [2020-12-01 15:13:08,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:13:08,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:13:08,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:13:08,066 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:13:08,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:07" (3/4) ... [2020-12-01 15:13:08,070 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:13:08,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:13:08,073 INFO L168 Benchmark]: Toolchain (without parser) took 2214.79 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 57.7 MB in the beginning and 53.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:13:08,074 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:13:08,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.69 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 63.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:13:08,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 90.2 MB. Free memory was 63.3 MB in the beginning and 60.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:13:08,077 INFO L168 Benchmark]: Boogie Preprocessor took 47.94 ms. Allocated memory is still 90.2 MB. Free memory was 60.9 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:13:08,078 INFO L168 Benchmark]: RCFGBuilder took 862.53 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.7 MB in the beginning and 80.7 MB in the end (delta: -22.0 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:13:08,079 INFO L168 Benchmark]: TraceAbstraction took 845.75 ms. Allocated memory is still 111.1 MB. Free memory was 80.7 MB in the beginning and 54.0 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:13:08,080 INFO L168 Benchmark]: Witness Printer took 5.37 ms. Allocated memory is still 111.1 MB. Free memory was 54.0 MB in the beginning and 53.4 MB in the end (delta: 592.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:13:08,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.69 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 63.3 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.63 ms. Allocated memory is still 90.2 MB. Free memory was 63.3 MB in the beginning and 60.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.94 ms. Allocated memory is still 90.2 MB. Free memory was 60.9 MB in the beginning and 58.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 862.53 ms. Allocated memory was 90.2 MB in the beginning and 111.1 MB in the end (delta: 21.0 MB). Free memory was 58.7 MB in the beginning and 80.7 MB in the end (delta: -22.0 MB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 845.75 ms. Allocated memory is still 111.1 MB. Free memory was 80.7 MB in the beginning and 54.0 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 5.37 ms. Allocated memory is still 111.1 MB. Free memory was 54.0 MB in the beginning and 53.4 MB in the end (delta: 592.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 172, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 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=56occurred 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, 0.2s 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, ACCELERATED_INTERPOLATION: 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 0.2.0-69874e2 [2020-12-01 15:13:11,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:13:11,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:13:11,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:13:11,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:13:11,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:13:11,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:13:11,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:13:11,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:13:11,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:13:11,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:13:11,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:13:11,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:13:11,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:13:11,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:13:11,157 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:13:11,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:13:11,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:13:11,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:13:11,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:13:11,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:13:11,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:13:11,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:13:11,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:13:11,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:13:11,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:13:11,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:13:11,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:13:11,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:13:11,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:13:11,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:13:11,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:13:11,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:13:11,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:13:11,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:13:11,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:13:11,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:13:11,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:13:11,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:13:11,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:13:11,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:13:11,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:13:11,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:13:11,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:13:11,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:13:11,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:13:11,271 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:13:11,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:13:11,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:13:11,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:13:11,272 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:13:11,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:13:11,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:13:11,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:13:11,274 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:13:11,275 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:13:11,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:13:11,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:13:11,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:13:11,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:13:11,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:13:11,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:13:11,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:13:11,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:13:11,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:13:11,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:13:11,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:13:11,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:13:11,278 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:13:11,279 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:13:11,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:13:11,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:13:11,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:13:11,280 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ae8278c4ec20358798928b86253d2d04fbb03a1 [2020-12-01 15:13:11,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:13:11,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:13:11,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:13:11,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:13:11,783 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:13:11,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-01 15:13:11,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/278f28953/4ecd5a6afcec434f8975f98b3e23c6bb/FLAG383a0990c [2020-12-01 15:13:12,601 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:13:12,602 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/sv-benchmarks/c/float-newlib/double_req_bl_1121b.c [2020-12-01 15:13:12,615 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/278f28953/4ecd5a6afcec434f8975f98b3e23c6bb/FLAG383a0990c [2020-12-01 15:13:12,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/data/278f28953/4ecd5a6afcec434f8975f98b3e23c6bb [2020-12-01 15:13:12,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:13:12,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:13:12,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:13:12,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:13:12,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:13:12,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:13:12" (1/1) ... [2020-12-01 15:13:12,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2719b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:12, skipping insertion in model container [2020-12-01 15:13:12,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:13:12" (1/1) ... [2020-12-01 15:13:12,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:13:13,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:13:13,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:13:13,287 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:13:13,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:13:13,449 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:13:13,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13 WrapperNode [2020-12-01 15:13:13,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:13:13,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:13:13,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:13:13,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:13:13,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:13:13,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:13:13,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:13:13,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:13:13,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... [2020-12-01 15:13:13,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:13:13,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:13:13,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:13:13,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:13:13,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/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 [2020-12-01 15:13:13,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 15:13:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 15:13:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:13:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:13:13,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 15:13:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:13:13,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:13:13,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:13:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:13:13,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:13:19,511 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:13:19,511 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 15:13:19,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:19 BoogieIcfgContainer [2020-12-01 15:13:19,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:13:19,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:13:19,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:13:19,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:13:19,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:13:12" (1/3) ... [2020-12-01 15:13:19,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577e9198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:13:19, skipping insertion in model container [2020-12-01 15:13:19,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:13:13" (2/3) ... [2020-12-01 15:13:19,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577e9198 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:13:19, skipping insertion in model container [2020-12-01 15:13:19,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:19" (3/3) ... [2020-12-01 15:13:19,524 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1121b.c [2020-12-01 15:13:19,541 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:13:19,545 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:13:19,558 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:13:19,590 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:13:19,591 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:13:19,591 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:13:19,591 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:13:19,591 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:13:19,591 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:13:19,592 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:13:19,592 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:13:19,604 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-12-01 15:13:19,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:13:19,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:13:19,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:13:19,611 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:13:19,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:13:19,618 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-01 15:13:19,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:13:19,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008732088] [2020-12-01 15:13:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/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 [2020-12-01 15:13:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:13:21,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:13:21,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:13:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:13:21,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:13:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:13:21,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008732088] [2020-12-01 15:13:21,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:13:21,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:13:21,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597311399] [2020-12-01 15:13:21,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:13:21,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:13:21,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:13:21,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:13:21,091 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 2 states. [2020-12-01 15:13:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:13:21,115 INFO L93 Difference]: Finished difference Result 109 states and 191 transitions. [2020-12-01 15:13:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:13:21,116 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 15:13:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:13:21,126 INFO L225 Difference]: With dead ends: 109 [2020-12-01 15:13:21,126 INFO L226 Difference]: Without dead ends: 52 [2020-12-01 15:13:21,129 INFO L677 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 [2020-12-01 15:13:21,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-01 15:13:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-01 15:13:21,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 15:13:21,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-01 15:13:21,169 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-01 15:13:21,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:13:21,169 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-01 15:13:21,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:13:21,170 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-01 15:13:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 15:13:21,171 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:13:21,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:13:21,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:13:21,386 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:13:21,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:13:21,387 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-01 15:13:21,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:13:21,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254210867] [2020-12-01 15:13:21,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/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 [2020-12-01 15:13:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:13:22,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:13:22,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:13:26,290 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (= |c_ULTIMATE.start_fmod_double_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) is different from true [2020-12-01 15:13:33,886 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 32) |c_ULTIMATE.start_isnan_double_#res|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from false [2020-12-01 15:13:40,483 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 32) |c_ULTIMATE.start_main_#t~ret25|) (exists ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul roundNearestTiesToEven ULTIMATE.start_fmod_double_~x (fp.neg (_ +zero 11 53))))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (fp.eq .cse0 .cse0))))) is different from false [2020-12-01 15:13:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:13:40,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:13:45,045 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-12-01 15:13:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:13:47,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254210867] [2020-12-01 15:13:47,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:13:47,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-01 15:13:47,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878983726] [2020-12-01 15:13:47,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-01 15:13:47,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:13:47,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-01 15:13:47,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=34, Unknown=4, NotChecked=52, Total=110 [2020-12-01 15:13:47,197 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 11 states. [2020-12-01 15:13:50,829 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~x (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode ULTIMATE.start_fmod_double_~x c_ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_double_~y (fp.neg (_ +zero 11 53)))) is different from true [2020-12-01 15:14:03,762 WARN L197 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 12 DAG size of output: 3 [2020-12-01 15:14:33,584 WARN L197 SmtUtils]: Spent 21.44 s on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2020-12-01 15:14:55,093 WARN L197 SmtUtils]: Spent 9.90 s on a formula simplification. DAG size of input: 22 DAG size of output: 11 [2020-12-01 15:14:57,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:14:57,383 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-12-01 15:14:57,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:14:57,419 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-01 15:14:57,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:14:57,420 INFO L225 Difference]: With dead ends: 57 [2020-12-01 15:14:57,420 INFO L226 Difference]: Without dead ends: 52 [2020-12-01 15:14:57,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 81.2s TimeCoverageRelationStatistics Valid=36, Invalid=61, Unknown=13, NotChecked=100, Total=210 [2020-12-01 15:14:57,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-01 15:14:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-01 15:14:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 15:14:57,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-01 15:14:57,433 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-01 15:14:57,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:14:57,433 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-01 15:14:57,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-01 15:14:57,434 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-01 15:14:57,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 15:14:57,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:14:57,435 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:14:57,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:14:57,636 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:14:57,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:14:57,640 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-01 15:14:57,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:14:57,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005791001] [2020-12-01 15:14:57,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/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 [2020-12-01 15:14:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:14:57,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:14:58,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:14:58,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:14:58,259 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 15:14:58,260 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:14:58,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:14:58,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:14:58 BoogieIcfgContainer [2020-12-01 15:14:58,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:14:58,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:14:58,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:14:58,531 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:14:58,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:13:19" (3/4) ... [2020-12-01 15:14:58,534 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 15:14:58,616 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_45dd7fc1-3fc4-4c75-91e8-0a80475db417/bin/uautomizer/witness.graphml [2020-12-01 15:14:58,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:14:58,618 INFO L168 Benchmark]: Toolchain (without parser) took 105681.36 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.0 MB in the beginning and 36.7 MB in the end (delta: -6.7 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,619 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 52.4 MB. Free memory was 35.2 MB in the beginning and 35.2 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:14:58,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.48 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 29.7 MB in the beginning and 48.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.53 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,621 INFO L168 Benchmark]: Boogie Preprocessor took 89.42 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,622 INFO L168 Benchmark]: RCFGBuilder took 5906.13 ms. Allocated memory is still 67.1 MB. Free memory was 44.1 MB in the beginning and 43.1 MB in the end (delta: 950.0 kB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,622 INFO L168 Benchmark]: TraceAbstraction took 99013.89 ms. Allocated memory is still 67.1 MB. Free memory was 42.8 MB in the beginning and 39.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,623 INFO L168 Benchmark]: Witness Printer took 86.53 ms. Allocated memory is still 67.1 MB. Free memory was 39.6 MB in the beginning and 36.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:14:58,638 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 52.4 MB. Free memory was 35.2 MB in the beginning and 35.2 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 512.48 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 29.7 MB in the beginning and 48.7 MB in the end (delta: -18.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.53 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 46.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.42 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5906.13 ms. Allocated memory is still 67.1 MB. Free memory was 44.1 MB in the beginning and 43.1 MB in the end (delta: 950.0 kB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 99013.89 ms. Allocated memory is still 67.1 MB. Free memory was 42.8 MB in the beginning and 39.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Witness Printer took 86.53 ms. Allocated memory is still 67.1 MB. Free memory was 39.6 MB in the beginning and 36.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L171] double x = __VERIFIER_nondet_double(); [L172] double y = -0.0; [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L45-L46] COND FALSE !((hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000)) VAL [one_fmod=1.0, Zero_fmod={2:0}] [L48] COND TRUE hx <= hy VAL [one_fmod=1.0, Zero_fmod={2:0}] [L49] COND TRUE (hx < hy) || (lx < ly) [L50] return x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L173] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L176] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1121b.c", 3, "reach_error") VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 98.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 70.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 155 SDtfs, 4 SDslu, 402 SDs, 0 SdLazy, 18 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 81.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 24.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 9 QuantifiedInterpolants, 3253 SizeOfPredicates, 11 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...