./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 ................................................................................................................................................................................................................................................................................................................ 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_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 ........................................................................................................................................................................................................................................................................................................................................................................ 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-a4ecdab [2020-11-28 03:18:44,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:44,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:44,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:44,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:44,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:44,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:44,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:44,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:44,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:44,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:44,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:44,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:44,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:44,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:44,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:44,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:44,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:44,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:44,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:44,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:44,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:44,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:44,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:44,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:44,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:44,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:44,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:44,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:44,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:44,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:44,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:44,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:44,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:44,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:44,691 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:44,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:44,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:44,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:44,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:44,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:44,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:18:44,741 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:44,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:44,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:44,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:44,743 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:44,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:44,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:44,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:18:44,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:44,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:44,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:44,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:44,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:44,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:44,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:44,747 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:44,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:44,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:44,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:44,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:44,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:44,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:44,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:44,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:44,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:44,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:18:44,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:18:44,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:44,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:44,750 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_d3c6691c-493c-434f-8741-a5b274258944/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 [2020-11-28 03:18:45,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:45,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:45,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:45,094 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:45,096 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:45,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-28 03:18:45,178 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/e4c104770/da3470683b644ebe968467433e08f355/FLAG2eb884919 [2020-11-28 03:18:45,625 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:45,626 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-28 03:18:45,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/e4c104770/da3470683b644ebe968467433e08f355/FLAG2eb884919 [2020-11-28 03:18:45,990 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/e4c104770/da3470683b644ebe968467433e08f355 [2020-11-28 03:18:45,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:45,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:45,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:45,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:45,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:46,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:45" (1/1) ... [2020-11-28 03:18:46,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669d3d26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46, skipping insertion in model container [2020-11-28 03:18:46,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:45" (1/1) ... [2020-11-28 03:18:46,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:46,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:46,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:46,243 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:46,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:46,288 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:46,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46 WrapperNode [2020-11-28 03:18:46,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:46,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:46,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:46,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:46,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:46,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:46,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:46,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:46,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... [2020-11-28 03:18:46,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:46,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:46,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:46,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:46,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 [2020-11-28 03:18:46,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:18:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 03:18:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:18:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 03:18:46,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:46,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:46,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:18:46,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:18:46,971 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:46,972 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 03:18:46,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:46 BoogieIcfgContainer [2020-11-28 03:18:46,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:46,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:46,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:46,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:46,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:45" (1/3) ... [2020-11-28 03:18:46,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5ae72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:46, skipping insertion in model container [2020-11-28 03:18:46,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:46" (2/3) ... [2020-11-28 03:18:46,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5ae72c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:46, skipping insertion in model container [2020-11-28 03:18:46,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:46" (3/3) ... [2020-11-28 03:18:46,982 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b.c [2020-11-28 03:18:46,999 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:47,007 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:18:47,018 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:18:47,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:47,043 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:47,043 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:47,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:47,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:47,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:47,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:47,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:47,057 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-28 03:18:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:18:47,062 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:47,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:47,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:47,069 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-28 03:18:47,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:47,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665901571] [2020-11-28 03:18:47,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:47,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665901571] [2020-11-28 03:18:47,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:47,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:18:47,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965896959] [2020-11-28 03:18:47,215 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:18:47,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:18:47,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:18:47,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:18:47,230 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-28 03:18:47,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:47,248 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-28 03:18:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:18:47,250 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-28 03:18:47,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:47,259 INFO L225 Difference]: With dead ends: 73 [2020-11-28 03:18:47,259 INFO L226 Difference]: Without dead ends: 34 [2020-11-28 03:18:47,262 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 [2020-11-28 03:18:47,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-28 03:18:47,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-28 03:18:47,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-28 03:18:47,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-28 03:18:47,366 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-28 03:18:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:47,366 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-28 03:18:47,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:18:47,366 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-28 03:18:47,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:18:47,367 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:47,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:47,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:18:47,368 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:47,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:47,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-28 03:18:47,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:18:47,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91915331] [2020-11-28 03:18:47,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:18:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:47,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:47,637 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:47,664 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:18:47,664 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:18:47,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:18:47,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:47 BoogieIcfgContainer [2020-11-28 03:18:47,698 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:47,699 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:47,699 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:47,699 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:47,700 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:46" (3/4) ... [2020-11-28 03:18:47,702 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:18:47,703 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:47,705 INFO L168 Benchmark]: Toolchain (without parser) took 1709.91 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 60.7 MB in the beginning and 82.9 MB in the end (delta: -22.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:47,705 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:47,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.88 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 73.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:47,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.14 ms. Allocated memory is still 98.6 MB. Free memory was 73.5 MB in the beginning and 71.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:47,708 INFO L168 Benchmark]: Boogie Preprocessor took 66.20 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:47,708 INFO L168 Benchmark]: RCFGBuilder took 576.94 ms. Allocated memory is still 98.6 MB. Free memory was 69.8 MB in the beginning and 47.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:47,709 INFO L168 Benchmark]: TraceAbstraction took 722.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 47.2 MB in the beginning and 83.7 MB in the end (delta: -36.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:47,710 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 119.5 MB. Free memory was 83.7 MB in the beginning and 82.9 MB in the end (delta: 775.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:47,713 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.88 ms. Allocated memory is still 98.6 MB. Free memory was 60.5 MB in the beginning and 73.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.14 ms. Allocated memory is still 98.6 MB. Free memory was 73.5 MB in the beginning and 71.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.20 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 576.94 ms. Allocated memory is still 98.6 MB. Free memory was 69.8 MB in the beginning and 47.4 MB in the end (delta: 22.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 722.64 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 47.2 MB in the beginning and 83.7 MB in the end (delta: -36.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 119.5 MB. Free memory was 83.7 MB in the beginning and 82.9 MB in the end (delta: 775.0 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 shiftRight at line 39, overapproximation of bitwiseOr at line 91, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 90. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = floor_double(x); [L83] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L85] ieee_double_shape_type ew_u; [L86] ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] (lx) = ew_u.parts.lsw [L90] hx &= 0x7fffffff [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L107] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1052b.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 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: 51 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=38occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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-a4ecdab [2020-11-28 03:18:50,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:18:50,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:18:50,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:18:50,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:18:50,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:18:50,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:18:50,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:18:50,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:18:50,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:18:50,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:18:50,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:18:50,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:18:50,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:18:50,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:18:50,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:18:50,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:18:50,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:18:50,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:18:50,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:18:50,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:18:50,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:18:50,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:18:50,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:18:50,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:18:50,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:18:50,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:18:50,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:18:50,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:18:50,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:18:50,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:18:50,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:18:50,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:18:50,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:18:50,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:18:50,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:18:50,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:18:50,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:18:50,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:18:50,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:18:50,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:18:50,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:18:50,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:18:50,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:18:50,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:18:50,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:18:50,258 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:18:50,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:18:50,258 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:18:50,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:18:50,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:18:50,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:18:50,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:18:50,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:18:50,260 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:18:50,260 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:18:50,260 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:18:50,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:18:50,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:18:50,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:18:50,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:18:50,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:18:50,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:18:50,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:18:50,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:18:50,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:18:50,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:18:50,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:18:50,264 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:18:50,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:18:50,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:18:50,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:18:50,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:18:50,278 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_d3c6691c-493c-434f-8741-a5b274258944/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 [2020-11-28 03:18:50,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:18:50,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:18:50,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:18:50,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:18:50,762 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:18:50,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-28 03:18:50,829 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/ec82d7e49/9b44c17e6d3a4c40ba82779e604eb469/FLAG7723b3f81 [2020-11-28 03:18:51,417 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:18:51,418 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-28 03:18:51,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/ec82d7e49/9b44c17e6d3a4c40ba82779e604eb469/FLAG7723b3f81 [2020-11-28 03:18:51,752 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/data/ec82d7e49/9b44c17e6d3a4c40ba82779e604eb469 [2020-11-28 03:18:51,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:18:51,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:18:51,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:51,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:18:51,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:18:51,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:51" (1/1) ... [2020-11-28 03:18:51,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c927fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:51, skipping insertion in model container [2020-11-28 03:18:51,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:51" (1/1) ... [2020-11-28 03:18:51,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:18:51,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:18:51,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:51,993 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:18:52,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:18:52,102 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:18:52,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52 WrapperNode [2020-11-28 03:18:52,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:18:52,105 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:52,105 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:18:52,105 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:18:52,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:18:52,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:18:52,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:18:52,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:18:52,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... [2020-11-28 03:18:52,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:18:52,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:18:52,264 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:18:52,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:18:52,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 [2020-11-28 03:18:52,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 03:18:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 03:18:52,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:18:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:18:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 03:18:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:18:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:18:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 03:18:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:18:53,809 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:18:53,810 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 03:18:53,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:53 BoogieIcfgContainer [2020-11-28 03:18:53,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:18:53,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:18:53,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:18:53,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:18:53,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:51" (1/3) ... [2020-11-28 03:18:53,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a62743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:53, skipping insertion in model container [2020-11-28 03:18:53,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:52" (2/3) ... [2020-11-28 03:18:53,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72a62743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:53, skipping insertion in model container [2020-11-28 03:18:53,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:53" (3/3) ... [2020-11-28 03:18:53,820 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b.c [2020-11-28 03:18:53,831 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:18:53,836 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:18:53,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:18:53,872 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:18:53,872 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:18:53,873 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:18:53,873 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:18:53,873 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:18:53,873 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:18:53,873 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:18:53,873 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:18:53,887 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-28 03:18:53,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 03:18:53,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:53,895 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:53,895 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:53,901 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-28 03:18:53,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:18:53,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013408985] [2020-11-28 03:18:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 [2020-11-28 03:18:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:54,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 03:18:54,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:18:54,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:54,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:18:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:54,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013408985] [2020-11-28 03:18:54,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:54,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 03:18:54,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110231067] [2020-11-28 03:18:54,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:18:54,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:18:54,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:18:54,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:18:54,181 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-28 03:18:54,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:54,219 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-28 03:18:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:18:54,221 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-28 03:18:54,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:54,236 INFO L225 Difference]: With dead ends: 73 [2020-11-28 03:18:54,236 INFO L226 Difference]: Without dead ends: 34 [2020-11-28 03:18:54,240 INFO L677 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 [2020-11-28 03:18:54,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-28 03:18:54,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-28 03:18:54,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-28 03:18:54,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-28 03:18:54,285 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-28 03:18:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:54,285 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-28 03:18:54,285 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:18:54,286 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-28 03:18:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:18:54,288 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:54,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:54,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:18:54,511 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:54,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:54,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-28 03:18:54,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:18:54,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013851022] [2020-11-28 03:18:54,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 [2020-11-28 03:18:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:18:54,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:18:54,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:18:54,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:54,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:18:55,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:18:55,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013851022] [2020-11-28 03:18:55,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:18:55,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 03:18:55,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421673683] [2020-11-28 03:18:55,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 03:18:55,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:18:55,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 03:18:55,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:18:55,164 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-11-28 03:18:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:18:55,510 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-28 03:18:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:18:55,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-28 03:18:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:18:55,513 INFO L225 Difference]: With dead ends: 42 [2020-11-28 03:18:55,513 INFO L226 Difference]: Without dead ends: 16 [2020-11-28 03:18:55,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-28 03:18:55,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-28 03:18:55,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-28 03:18:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 03:18:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-28 03:18:55,520 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-28 03:18:55,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:18:55,520 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-28 03:18:55,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 03:18:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-28 03:18:55,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 03:18:55,522 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:18:55,522 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:18:55,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 03:18:55,737 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:18:55,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:18:55,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-11-28 03:18:55,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:18:55,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7022315] [2020-11-28 03:18:55,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/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 [2020-11-28 03:18:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:56,013 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:18:56,236 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:18:56,295 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:18:56,295 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:18:56,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 03:18:56,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:18:56 BoogieIcfgContainer [2020-11-28 03:18:56,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:18:56,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:18:56,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:18:56,528 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:18:56,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:53" (3/4) ... [2020-11-28 03:18:56,530 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:18:56,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d3c6691c-493c-434f-8741-a5b274258944/bin/uautomizer/witness.graphml [2020-11-28 03:18:56,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:18:56,594 INFO L168 Benchmark]: Toolchain (without parser) took 4835.78 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 47.5 MB in the beginning and 41.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:56,595 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:56,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.33 ms. Allocated memory is still 67.1 MB. Free memory was 47.3 MB in the beginning and 48.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:56,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.00 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 47.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:18:56,597 INFO L168 Benchmark]: Boogie Preprocessor took 76.33 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 45.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:56,598 INFO L168 Benchmark]: RCFGBuilder took 1548.43 ms. Allocated memory is still 67.1 MB. Free memory was 45.0 MB in the beginning and 44.1 MB in the end (delta: 891.0 kB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:56,599 INFO L168 Benchmark]: TraceAbstraction took 2713.27 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 43.5 MB in the beginning and 44.4 MB in the end (delta: -888.6 kB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:56,600 INFO L168 Benchmark]: Witness Printer took 64.64 ms. Allocated memory is still 86.0 MB. Free memory was 44.4 MB in the beginning and 41.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:18:56,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 67.1 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.33 ms. Allocated memory is still 67.1 MB. Free memory was 47.3 MB in the beginning and 48.7 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.00 ms. Allocated memory is still 67.1 MB. Free memory was 48.7 MB in the beginning and 47.0 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.33 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 45.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1548.43 ms. Allocated memory is still 67.1 MB. Free memory was 45.0 MB in the beginning and 44.1 MB in the end (delta: 891.0 kB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2713.27 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 43.5 MB in the beginning and 44.4 MB in the end (delta: -888.6 kB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Witness Printer took 64.64 ms. Allocated memory is still 86.0 MB. Free memory was 44.4 MB in the beginning and 41.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 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: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 > 51 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 == 0x400 [L51] return x + x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = floor_double(x); [L83] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L85] ieee_double_shape_type ew_u; [L86] ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] (lx) = ew_u.parts.lsw [L90] hx &= 0x7fffffff [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L107] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1052b.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 44 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2332 SizeOfPredicates, 8 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 9 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! Received shutdown request...